├── .gitattributes
├── C++
    └── HackerRank
    │   └── Elementary
    │       ├── 01. Hello World.cpp
    │       └── 02. Input and Output.cpp
├── Go
    └── golangr
    │   └── Beginner Exercises
    │       ├── 01. Hello World.go
    │       ├── 02. Comments.go
    │       ├── 03. Strings.go
    │       ├── 04. Keyboard Input.go
    │       ├── 05. Variables.go
    │       ├── 06. Scope.go
    │       ├── 07. Arrays.go
    │       ├── 08. For Loops.go
    │       ├── 09. Range.go
    │       ├── 10. If Statements.go
    │       └── 11. While Loops.go
├── Java
    └── Programiz
    │   └── First Steps In Coding
    │       ├── 01. Hello World.java
    │       ├── 02. Variables and Literals.java
    │       ├── 03. Data Types.java
    │       ├── 04. Operators.java
    │       ├── 05. Input and Output.java
    │       └── 06. Expressions and Blocks.java
├── LICENSE
├── Perl
    ├── First steps in coding
    │   └── GeeksForGeeks
    │   │   └── 01. Hello World.perl
    └── Regex
    │   └── Examples
    │       └── Perl Regex Email Validation Example
    │           └── 0.1 Example.perl
├── README.md
├── Ruby
    └── HackerRank
    │   ├── (1) First steps in Ruby
    │       ├── 01. Print Hello HackerRank.rb
    │       ├── 02. Everything is an object.rb
    │       ├── 03. Odd or Even.rb
    │       └── 04. a in range b, c.rb
    │   ├── (2) Enumerable
    │       ├── 01. collect.rb
    │       ├── 02. reduce.rb
    │       ├── 03. any, all, none and find.rb
    │       └── 04. Group By Marks.rb
    │   └── (3) Strings
    │       ├── 01. Encoding.rb
    │       ├── 02. Indexing.rb
    │       ├── 03. Iteration.rb
    │       ├── 04. Methods I.rb
    │       └── 05. Methods II.rb
├── SQL
    └── MySQL
    │   └── Database basics
    │       ├── 00. Full Code.sql
    │       ├── 01. Create Table.sql
    │       ├── 02. Insert Data.sql
    │       ├── 03. Find All Records.sql
    │       ├── 04. Find Last Name, Age and Grade.sql
    │       ├── 05. Find First 5 Records.sql
    │       ├── 06. Find First 5 Last Name and Grade.sql
    │       ├── 07. Truncate Table.sql
    │       └── 08. Drop Table.sql
├── Swift
    └── Programiz
    │   └── First Steps in Swift
    │       ├── 01. Hello, World.swift
    │       ├── 02. Variables.swift
    │       ├── 03. Data Types.swift
    │       ├── 04. Characters and Strings.swift
    │       ├── 05. Input and Output.swift
    │       ├── 06. Code blocks.swift
    │       ├── 07. Comments.swift
    │       └── 08. Optionals.swift
└── TypeScript
    └── Utility Types
        ├── FirstCode.ts
        ├── SecondCode.ts
        └── ThirdCode.ts


/.gitattributes:
--------------------------------------------------------------------------------
1 | *.sql linguist-detectable=true


--------------------------------------------------------------------------------
/C++/HackerRank/Elementary/01. Hello World.cpp:
--------------------------------------------------------------------------------
1 | #include <iostream>
2 | #include <cstdio>
3 | using namespace std;
4 | 
5 | int main() {
6 |     printf("Hello, World!");
7 |     return 0;
8 | }
9 | 


--------------------------------------------------------------------------------
/C++/HackerRank/Elementary/02. Input and Output.cpp:
--------------------------------------------------------------------------------
 1 | #include <cmath>
 2 | #include <cstdio>
 3 | #include <vector>
 4 | #include <iostream>
 5 | #include <algorithm>
 6 | using namespace std;
 7 | 
 8 | 
 9 | int main() {
10 |     int a,b,c;
11 |     cin >> a >> b >>c;
12 |     cout << a+b+c;
13 |     return 0;
14 | }
15 | 


--------------------------------------------------------------------------------
/Go/golangr/Beginner Exercises/01. Hello World.go:
--------------------------------------------------------------------------------
1 | package main
2 | import "fmt"
3 | 
4 | func main() {
5 | 	fmt.Printf("Hello, World!")
6 | }
7 | 


--------------------------------------------------------------------------------
/Go/golangr/Beginner Exercises/02. Comments.go:
--------------------------------------------------------------------------------
 1 | package main
 2 | 
 3 | import "fmt"
 4 | 
 5 | func main() {
 6 |    /* multi line comment test
 7 |       Author: MitkoVtori */
 8 |       fmt.Println("Go!")
 9 | 
10 |       // Author: MitkoVtori
11 |       fmt.Println("Lang!")
12 |  }
13 | 


--------------------------------------------------------------------------------
/Go/golangr/Beginner Exercises/03. Strings.go:
--------------------------------------------------------------------------------
1 | package main
2 | import (
3 |     "fmt"
4 | )
5 | func main() {
6 |     fmt.Printf("%d:%s", 2016, "year")
7 | }
8 | 


--------------------------------------------------------------------------------
/Go/golangr/Beginner Exercises/04. Keyboard Input.go:
--------------------------------------------------------------------------------
 1 | package main
 2 | 
 3 | import (
 4 |     "bufio"
 5 |     "fmt"
 6 |     "os"
 7 | )
 8 | 
 9 | func main() {
10 |     reader := bufio.NewReader(os.Stdin)
11 |     fmt.Print("Enter your city: ")
12 |     city, _ := reader.ReadString('\n')
13 |     fmt.Print("You live in " + city)
14 | }
15 | 


--------------------------------------------------------------------------------
/Go/golangr/Beginner Exercises/05. Variables.go:
--------------------------------------------------------------------------------
 1 | package main
 2 | 
 3 | import "fmt"
 4 | 
 5 | func main() {
 6 |    apple := 3.0
 7 |    bread := 2.0
 8 |    price := apple + bread
 9 | 
10 |    fmt.Printf("")
11 |    fmt.Printf("Price:    %f\n",price)
12 |    vat := price * 0.15
13 |    fmt.Printf("VAT:      %f\n",vat)
14 |    total := vat + price
15 |    fmt.Printf("Total:    %f\n",total)
16 |    fmt.Printf("")
17 | }
18 | 


--------------------------------------------------------------------------------
/Go/golangr/Beginner Exercises/06. Scope.go:
--------------------------------------------------------------------------------
 1 | package main
 2 | 
 3 | import "fmt"
 4 | 
 5 | var x = 7
 6 | 
 7 | func example() {
 8 |     fmt.Println(x)
 9 | }
10 | 
11 | func main() {
12 |     fmt.Println(x)
13 |     example()
14 | }
15 | 


--------------------------------------------------------------------------------
/Go/golangr/Beginner Exercises/07. Arrays.go:
--------------------------------------------------------------------------------
 1 | package main
 2 | 
 3 | import "fmt"
 4 | 
 5 | func main() {
 6 |     var arr1 = new([5]int)
 7 | 	fmt.Println(arr1[2])
 8 | 	fmt.Println(arr1[3])
 9 | }
10 | 


--------------------------------------------------------------------------------
/Go/golangr/Beginner Exercises/08. For Loops.go:
--------------------------------------------------------------------------------
 1 | package main
 2 | import (
 3 |     "fmt"
 4 | )
 5 | func main() {
 6 |     a := []int{1, 2, 3, 4, 5, 6}
 7 | 
 8 |     for i := 0; i < len(a); i = i +1 {
 9 |         fmt.Println("character :", a[i])
10 |     }
11 | }
12 | 


--------------------------------------------------------------------------------
/Go/golangr/Beginner Exercises/09. Range.go:
--------------------------------------------------------------------------------
 1 | package main
 2 | 
 3 | import "fmt"
 4 | 
 5 | func main() {
 6 |     nums := []int{1,2,3,4,5,6}
 7 | 
 8 |     for _, num := range nums {
 9 |             fmt.Println(num)
10 |     }
11 | }
12 | 


--------------------------------------------------------------------------------
/Go/golangr/Beginner Exercises/10. If Statements.go:
--------------------------------------------------------------------------------
 1 | package main
 2 | 
 3 | import "fmt"
 4 | 
 5 | func main() {
 6 |    var x = 3
 7 | 
 8 |    if ( x > 2 ) {
 9 |       fmt.Printf("x is greater than 2");
10 |    }
11 | }
12 | 


--------------------------------------------------------------------------------
/Go/golangr/Beginner Exercises/11. While Loops.go:
--------------------------------------------------------------------------------
 1 | package main
 2 | 
 3 | import "fmt"
 4 | 
 5 | func main() {
 6 | 	sum := 1
 7 | 
 8 | 	for sum < 100 {
 9 | 		sum += 5
10 | 	}
11 | 	fmt.Println(sum)
12 | }
13 | 


--------------------------------------------------------------------------------
/Java/Programiz/First Steps In Coding/01. Hello World.java:
--------------------------------------------------------------------------------
1 | class HelloWorld {
2 |     public static void main(String[] args) {
3 |         System.out.println("Hello, World!"); 
4 |     }
5 | }
6 | 


--------------------------------------------------------------------------------
/Java/Programiz/First Steps In Coding/02. Variables and Literals.java:
--------------------------------------------------------------------------------
 1 | class Main {
 2 |   public static void main(String[] args) {
 3 |     	
 4 |     double myDouble = 3.4;
 5 |     float myFloat = 3.4F;
 6 | 
 7 |     double myDoubleScientific = 3.445e2;
 8 | 
 9 |     System.out.println(myDouble);
10 |     System.out.println(myFloat);
11 |     System.out.println(myDoubleScientific);
12 |   }
13 | }
14 | 


--------------------------------------------------------------------------------
/Java/Programiz/First Steps In Coding/03. Data Types.java:
--------------------------------------------------------------------------------
1 | class Main {
2 |   public static void main(String[] args) {
3 |     	
4 |     boolean flag = true;
5 |     System.out.println(flag);
6 |   }
7 | }
8 | 


--------------------------------------------------------------------------------
/Java/Programiz/First Steps In Coding/04. Operators.java:
--------------------------------------------------------------------------------
 1 | class Main {
 2 |   public static void main(String[] args) {
 3 |     
 4 |     // declare variables
 5 |     int a = 12, b = 5;
 6 | 
 7 |     // addition operator
 8 |     System.out.println("a + b = " + (a + b));
 9 | 
10 |     // subtraction operator
11 |     System.out.println("a - b = " + (a - b));
12 | 
13 |     // multiplication operator
14 |     System.out.println("a * b = " + (a * b));
15 | 
16 |     // division operator
17 |     System.out.println("a / b = " + (a / b));
18 | 
19 |     // modulo operator
20 |     System.out.println("a % b = " + (a % b));
21 |   }
22 | }
23 | 


--------------------------------------------------------------------------------
/Java/Programiz/First Steps In Coding/05. Input and Output.java:
--------------------------------------------------------------------------------
 1 | import java.util.Scanner;
 2 | 
 3 | class Input {
 4 |     public static void main(String[] args) {
 5 |     	
 6 |         Scanner input = new Scanner(System.in);
 7 |     	
 8 |         System.out.print("Enter an integer: ");
 9 |         int number = input.nextInt();
10 |         System.out.println("You entered " + number);
11 | 
12 |         input.close();
13 |     }
14 | }
15 | 


--------------------------------------------------------------------------------
/Java/Programiz/First Steps In Coding/06. Expressions and Blocks.java:
--------------------------------------------------------------------------------
 1 | class Main {
 2 |     public static void main(String[] args) {
 3 |     	
 4 |         String band = "Beatles";
 5 |     	
 6 |         if (band == "Beatles") {
 7 |             System.out.print("Hey ");
 8 |             System.out.print("Jude!");
 9 |         }
10 |     }
11 | }
12 | 


--------------------------------------------------------------------------------
/LICENSE:
--------------------------------------------------------------------------------
 1 | MIT License
 2 | 
 3 | Copyright (c) 2022 Dimitar Dimitrov
 4 | 
 5 | Permission is hereby granted, free of charge, to any person obtaining a copy
 6 | of this software and associated documentation files (the "Software"), to deal
 7 | in the Software without restriction, including without limitation the rights
 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 9 | copies of the Software, and to permit persons to whom the Software is
10 | furnished to do so, subject to the following conditions:
11 | 
12 | The above copyright notice and this permission notice shall be included in all
13 | copies or substantial portions of the Software.
14 | 
15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 | SOFTWARE.
22 | 


--------------------------------------------------------------------------------
/Perl/First steps in coding/GeeksForGeeks/01. Hello World.perl:
--------------------------------------------------------------------------------
1 | #!/usr/bin/perl
2 |   
3 | use strict;
4 | use warnings;
5 |   
6 | print("Hello World\n");
7 | 


--------------------------------------------------------------------------------
/Perl/Regex/Examples/Perl Regex Email Validation Example/0.1 Example.perl:
--------------------------------------------------------------------------------
 1 | /(?(DEFINE)
 2 | (?<address> (?&mailbox) | (?&group))
 3 | (?<mailbox> (?&name_addr) | (?&addr_spec))
 4 | (?<name_addr> (?&display_name)? (?&angle_addr))
 5 | (?<angle_addr> (?&CFWS)? < (?&addr_spec) > (?&CFWS)?)
 6 | (?<group> (?&display_name) : (?:(?&mailbox_list) | (?&CFWS))? ;
 7 | (?&CFWS)?)
 8 | (?<display_name> (?&phrase))
 9 | (?<mailbox_list> (?&mailbox) (?: , (?&mailbox))*)
10 | 
11 | (?<addr_spec> (?&local_part) \@ (?&domain))
12 | (?<local_part> (?&dot_atom) | (?&quoted_string))
13 | (?<domain> (?&dot_atom) | (?&domain_literal))
14 | (?<domain_literal> (?&CFWS)? \[ (?: (?&FWS)? (?&dcontent))* (?&FWS)?
15 | \] (?&CFWS)?)
16 | (?<dcontent> (?&dtext) | (?&quoted_pair))
17 | (?<dtext> (?&NO_WS_CTL) | [\x21-\x5a\x5e-\x7e])
18 | 
19 | (?<atext> (?&ALPHA) | (?&DIGIT) | [!#\$%&'*+-/=?^_`{|}~])
20 | (?<atom> (?&CFWS)? (?&atext)+ (?&CFWS)?)
21 | (?<dot_atom> (?&CFWS)? (?&dot_atom_text) (?&CFWS)?)
22 | (?<dot_atom_text> (?&atext)+ (?: \. (?&atext)+)*)
23 | 
24 | (?<text> [\x01-\x09\x0b\x0c\x0e-\x7f])
25 | (?<quoted_pair> \\ (?&text))
26 | 
27 | (?<qtext> (?&NO_WS_CTL) | [\x21\x23-\x5b\x5d-\x7e])
28 | (?<qcontent> (?&qtext) | (?&quoted_pair))
29 | (?<quoted_string> (?&CFWS)? (?&DQUOTE) (?:(?&FWS)? (?&qcontent))*
30 | (?&FWS)? (?&DQUOTE) (?&CFWS)?)
31 | 
32 | (?<word> (?&atom) | (?&quoted_string))
33 | (?<phrase> (?&word)+)
34 | 


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
 1 | # Fundamentals common
 2 | Here, I'll post projects, solved problems & others on different languages, that I mainaly self learn.
 3 | 
 4 | | <a href="SQL">SQL</a>  | <a href="Ruby">Ruby</a> | <a href="Swift">Swift</a> | <a href="C++">C++</a> | <a href="Go">Go</a> | <a href="Java">Java</a> | <a href="TypeScript">TypeScript</a> | <a href="Perl">Perl</a> |
 5 | | ---------------- | ------------ | ------------ | -------------- | ------------ | ---------- | ---------- | ------ |
 6 | | | | | | | | | |
 7 | | <a href="SQL/MySQL">MySQL</a>     | <a href="Ruby/HackerRank">HackerRank</a> | <a href="Swift/Programiz">Programiz</a> | <a href="C++/HackerRank">HackerRank</a> | <a href="Go/golangr">golangr</a> | <a href="Java/Programiz">Programiz</a> | <a href="TypeScript/Utility Types">Utility Types</a> | <a href="Perl/First steps in coding">First steps in coding</a> |
 8 | | | | | | | | | |
 9 | | <a href="SQL/MySQL/Database basics">Database basics</a>     | <a href="Ruby/HackerRank/(1) First steps in Ruby">First Steps In Ruby</a> | <a href="Swift/Programiz/First Steps in Swift">First Steps In Swift</a> | <a href="C++/HackerRank/Elementary">Elementary</a> | <a href="Go/golangr/Beginner Exercises">Beginner Exercises</a> | <a href="Java/Programiz/First Steps In Coding">First Steps In Coding</a> |  | <a href="Perl/First steps in coding/GeeksForGeeks">GeeksForGeeks</a> |
10 | | | | | | | | | |
11 | |  | <a href="Ruby/HackerRank/(2) Enumerable">Enumerable</a> |  |  |  |  |  | <a href="Perl/Regex">Regex</a> |
12 | | | | | | | | | |
13 | |  | <a href="Ruby/HackerRank/(3) Strings">Strings</a> |  |  |  |  |  | <a href="Perl/Regex/Examples">Regex Examples</a> |
14 | | | | | | | | | |
15 | |  |  |  |  |  |  |  | <a href="Perl/Regex/Examples/Perl Regex Email Validation Example">Email Validation Regex Examples</a> |
16 | 


--------------------------------------------------------------------------------
/Ruby/HackerRank/(1) First steps in Ruby/01. Print Hello HackerRank.rb:
--------------------------------------------------------------------------------
1 | print "Hello HackerRank!!"
2 | 


--------------------------------------------------------------------------------
/Ruby/HackerRank/(1) First steps in Ruby/02. Everything is an object.rb:
--------------------------------------------------------------------------------
1 | print self
2 | 


--------------------------------------------------------------------------------
/Ruby/HackerRank/(1) First steps in Ruby/03. Odd or Even.rb:
--------------------------------------------------------------------------------
1 | def odd_or_even(number)
2 |     return number.even?
3 | 
4 | end
5 | 
6 | (0...gets.to_i).each do |i|
7 |     puts odd_or_even(gets.to_i)
8 | end
9 | 


--------------------------------------------------------------------------------
/Ruby/HackerRank/(1) First steps in Ruby/04. a in range b, c.rb:
--------------------------------------------------------------------------------
1 | return a.range? b, c
2 | 


--------------------------------------------------------------------------------
/Ruby/HackerRank/(2) Enumerable/01. collect.rb:
--------------------------------------------------------------------------------
1 | def rot13(secret_messages)
2 |     secret_messages.map { |v| rotate13(v) }
3 | end
4 | 


--------------------------------------------------------------------------------
/Ruby/HackerRank/(2) Enumerable/02. reduce.rb:
--------------------------------------------------------------------------------
1 | def sum_terms(n)
2 |     (1..n).inject(0) {|sum, n| sum +(n*n+1)}
3 | end
4 | 


--------------------------------------------------------------------------------
/Ruby/HackerRank/(2) Enumerable/03. any, all, none and find.rb:
--------------------------------------------------------------------------------
 1 | def func_any(hash)
 2 |     hash.any?{|key,value| key.is_a? Integer}
 3 | end
 4 | 
 5 | def func_all(hash)
 6 |     hash.all?{|key,value| value.is_a? Integer and value < 10}
 7 | end
 8 | 
 9 | def func_none(hash)
10 |     hash.none?{|key,value| value==nil}
11 | end
12 | 
13 | def func_find(hash)
14 |     hash.find{|key,value| (key.is_a? Integer and value.is_a? Integer and value < 20) or (key.is_a? String and value[0]=="a")}
15 | end
16 | 


--------------------------------------------------------------------------------
/Ruby/HackerRank/(2) Enumerable/04. Group By Marks.rb:
--------------------------------------------------------------------------------
 1 | def group_by_marks(marks, n)
 2 |     res = { "Failed" => [], "Passed" => [] }
 3 |     marks.group_by do |k, v|
 4 |         if v < n then
 5 |             res["Failed"].push([k, v])
 6 |         else
 7 |             res["Passed"].push([k, v])
 8 |         end
 9 |     end
10 | 
11 |     if res["Failed"].length == 0 then res.delete("Failed") end
12 |     if res["Passed"].length == 0 then res.delete("Passed") end
13 | 
14 |     return res
15 | end
16 | 


--------------------------------------------------------------------------------
/Ruby/HackerRank/(3) Strings/01. Encoding.rb:
--------------------------------------------------------------------------------
1 | def transcode(string)
2 |     new_string = string.force_encoding(Encoding::UTF_8)
3 |     return new_string
4 | end
5 | 


--------------------------------------------------------------------------------
/Ruby/HackerRank/(3) Strings/02. Indexing.rb:
--------------------------------------------------------------------------------
1 | def serial_average(code)
2 |     code = code.split('-')
3 |     average = ((code[1].to_f + code[2].to_f)/2.0).round(2)
4 |     return code[0] + "-" + average.to_s
5 | end
6 | 


--------------------------------------------------------------------------------
/Ruby/HackerRank/(3) Strings/03. Iteration.rb:
--------------------------------------------------------------------------------
1 | def count_multibyte_char(code)
2 |     counter = 0
3 |     code.each_char{c counter += 1 if c.bytesize  1}
4 |     return counter
5 | end
6 | 


--------------------------------------------------------------------------------
/Ruby/HackerRank/(3) Strings/04. Methods I.rb:
--------------------------------------------------------------------------------
1 | def process_text(arr)
2 |     arr.each { |x| x.strip! }
3 |     arr.join(" ")
4 | end
5 | 


--------------------------------------------------------------------------------
/Ruby/HackerRank/(3) Strings/05. Methods II.rb:
--------------------------------------------------------------------------------
 1 | def strike(text)
 2 |     return "<strike>#{text}</strike>"
 3 | end
 4 | 
 5 | def mask_article(s,texts)
 6 |     texts.each do |text|
 7 |         s.gsub!(text, strike(text))
 8 |     end
 9 |     s
10 | end
11 | 


--------------------------------------------------------------------------------
/SQL/MySQL/Database basics/00. Full Code.sql:
--------------------------------------------------------------------------------
 1 | USE `database_name`;
 2 | 
 3 | 
 4 | CREATE TABLE `students` (
 5 |      `id` INT AUTO_INCREMENT PRIMARY KEY,
 6 |      `first_name` VARCHAR(50),
 7 |      `last_name` VARCHAR(50),
 8 |      `age` INT,
 9 |      `grade` DOUBLE
10 | );
11 | 
12 | 
13 | INSERT INTO `students` (`id`, `first_name`, `last_name`, `age`, `grade`)
14 | VALUES
15 | (1, 'Guy', 'Gilbert', 15, 4.5),
16 | (2, 'Kevin', 'Brown', 17, 5.4),
17 | (3, 'Roberto', 'Tamburello', 19, 6),
18 | (4, 'Linda', 'Smith', 18, 5),
19 | (5, 'John', 'Stones', 16, 4.25),
20 | (6, 'Nicole', 'Nelson', 17, 5.50);
21 | 
22 | 
23 | SELECT * FROM `students`;
24 | 
25 | 
26 | SELECT `last_name`, `age`, `grade` FROM `students`;
27 | 
28 | 
29 | SELECT * FROM `students`
30 | LIMIT 5;
31 | 
32 | 
33 | SELECT `last_name`, `grade` FROM `students`
34 | LIMIT 5;
35 | 
36 | 
37 | TRUNCATE TABLE `students`;
38 | 
39 | 
40 | DROP TABLE `students`;
41 | 
42 | 
43 | DROP DATABASE `database_name`
44 | 


--------------------------------------------------------------------------------
/SQL/MySQL/Database basics/01. Create Table.sql:
--------------------------------------------------------------------------------
1 | CREATE TABLE `students` (
2 |      `id` INT AUTO_INCREMENT PRIMARY KEY,
3 |      `first_name` VARCHAR(50),
4 |      `last_name` VARCHAR(50),
5 |      `age` INT,
6 |      `grade` DOUBLE
7 | );
8 | 


--------------------------------------------------------------------------------
/SQL/MySQL/Database basics/02. Insert Data.sql:
--------------------------------------------------------------------------------
1 | INSERT INTO `students` (`id`, `first_name`, `last_name`, `age`, `grade`)
2 | VALUES
3 | (1, 'Guy', 'Gilbert', 15, 4.5),
4 | (2, 'Kevin', 'Brown', 17, 5.4),
5 | (3, 'Roberto', 'Tamburello', 19, 6),
6 | (4, 'Linda', 'Smith', 18, 5),
7 | (5, 'John', 'Stones', 16, 4.25),
8 | (6, 'Nicole', 'Nelson', 17, 5.50);
9 | 


--------------------------------------------------------------------------------
/SQL/MySQL/Database basics/03. Find All Records.sql:
--------------------------------------------------------------------------------
1 | SELECT * FROM `students`;
2 | 


--------------------------------------------------------------------------------
/SQL/MySQL/Database basics/04. Find Last Name, Age and Grade.sql:
--------------------------------------------------------------------------------
1 | SELECT `last_name`, `age`, `grade` FROM `students`;
2 | 


--------------------------------------------------------------------------------
/SQL/MySQL/Database basics/05. Find First 5 Records.sql:
--------------------------------------------------------------------------------
1 | SELECT * FROM `students`
2 | LIMIT 5;
3 | 


--------------------------------------------------------------------------------
/SQL/MySQL/Database basics/06. Find First 5 Last Name and Grade.sql:
--------------------------------------------------------------------------------
1 | SELECT `last_name`, `grade` FROM `students`
2 | LIMIT 5;
3 | 


--------------------------------------------------------------------------------
/SQL/MySQL/Database basics/07. Truncate Table.sql:
--------------------------------------------------------------------------------
1 | TRUNCATE TABLE `students`;
2 | 


--------------------------------------------------------------------------------
/SQL/MySQL/Database basics/08. Drop Table.sql:
--------------------------------------------------------------------------------
1 | DROP TABLE `students`;
2 | 


--------------------------------------------------------------------------------
/Swift/Programiz/First Steps in Swift/01. Hello, World.swift:
--------------------------------------------------------------------------------
1 | print("Hello, World!") 
2 | 


--------------------------------------------------------------------------------
/Swift/Programiz/First Steps in Swift/02. Variables.swift:
--------------------------------------------------------------------------------
1 | var food = "banana"
2 | 
3 | food = "apple"
4 | 
5 | print(food)
6 | 


--------------------------------------------------------------------------------
/Swift/Programiz/First Steps in Swift/03. Data Types.swift:
--------------------------------------------------------------------------------
1 | var number: Int = 3
2 | 
3 | print(number)
4 | 


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/Swift/Programiz/First Steps in Swift/04. Characters and Strings.swift:
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1 | var letter: Character = "H"
2 | print(letter)
3 | 
4 | var symbol: Character = "@"
5 | print(symbol)
6 | 


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/Swift/Programiz/First Steps in Swift/05. Input and Output.swift:
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1 | print("Enter your favorite programming language:")
2 | let name = readLine()
3 | 
4 | print("Your favorite programming language is \(name!).")
5 | 


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/Swift/Programiz/First Steps in Swift/06. Code blocks.swift:
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1 | if true {	
2 | let sum = 7+13
3 | print("Result is \(sum)")
4 | }
5 | 


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/Swift/Programiz/First Steps in Swift/07. Comments.swift:
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 1 | // Example 1
 2 | 
 3 | // create a variable 
 4 | var name = "Cartman"
 5 | 
 6 | // print the value
 7 | print(name)
 8 | 
 9 | // Example 2
10 | 
11 | /* create a variable
12 | to store salary of employees
13 | */
14 | 
15 | var salary = 10000
16 | print(salary)
17 | 


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/Swift/Programiz/First Steps in Swift/08. Optionals.swift:
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 1 | func testFunction() {
 2 | 	let someValue:Int? = 5
 3 | 	guard let temp = someValue else {
 4 | 		return
 5 | 	}
 6 | 	print("It has some value \(temp)")
 7 | }
 8 | 
 9 | testFunction()
10 | 


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/TypeScript/Utility Types/FirstCode.ts:
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1 | interface Point {
2 |   x: number;
3 |   y: number;
4 | }
5 | 
6 | let pointPart: Partial<Point> = {};
7 | pointPart.x = 10;
8 | 


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/TypeScript/Utility Types/SecondCode.ts:
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 1 | interface Car {
 2 |   make: string;
 3 |   model: string;
 4 |   mileage?: number;
 5 | }
 6 | 
 7 | let myCar: Required<Car> = {
 8 |   make: 'Ford',
 9 |   model: 'Focus',
10 |   mileage: 12000
11 | };
12 | 


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/TypeScript/Utility Types/ThirdCode.ts:
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1 | const nameAgeMap: Record<string, number> = {
2 |   'Alice': 21,
3 |   'Bob': 25
4 | };
5 | 


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