├── .gitignore
├── .npmignore
├── .travis.yml
├── LICENSE.txt
├── README.md
├── coverage
├── coverage.json
├── lcov-report
│ ├── base.css
│ ├── index.html
│ ├── poorlyfills
│ │ ├── index.c.js.html
│ │ └── index.html
│ ├── prettify.css
│ ├── prettify.js
│ ├── sort-arrow-sprite.png
│ └── sorter.js
└── lcov.info
├── index.js
├── min.js
├── package-lock.json
├── package.json
└── test
├── c.js
├── ie
└── index.html
├── index.html
└── test.js
/.gitignore:
--------------------------------------------------------------------------------
1 | .DS_Store
2 | node_modules/
--------------------------------------------------------------------------------
/.npmignore:
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1 | coverage/*
2 | node_modules/*
3 | test/*
4 | .DS_Store
5 | .gitignore
6 | .travis.yml
7 | package-lock.json
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/.travis.yml:
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1 | language: node_js
2 | node_js:
3 | - 8
4 | git:
5 | depth: 1
6 | branches:
7 | only:
8 | - master
9 | after_success:
10 | - "npm run coveralls"
--------------------------------------------------------------------------------
/LICENSE.txt:
--------------------------------------------------------------------------------
1 | ISC License
2 |
3 | Copyright (c) 2017, Andrea Giammarchi, @WebReflection
4 |
5 | Permission to use, copy, modify, and/or distribute this software for any
6 | purpose with or without fee is hereby granted, provided that the above
7 | copyright notice and this permission notice appear in all copies.
8 |
9 | THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
10 | REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
11 | AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
12 | INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
13 | LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
14 | OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
15 | PERFORMANCE OF THIS SOFTWARE.
16 |
--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
1 | # poorlyfills
2 |
3 | [](https://opensource.org/licenses/ISC) [](https://travis-ci.org/WebReflection/poorlyfills) [](https://coveralls.io/github/WebReflection/poorlyfills?branch=master) [](https://github.com/WebReflection/donate)
4 |
5 | Simplified, partial, and poor ES6 collections polyfills, targeting IE9+ and older mobile browsers.
6 |
7 | * **Map** based on double private arrays and `indexOf(...)` quirks
8 | * **Set** based on a map with same values as keys
9 | * **WeakMap** based on a configurable, not enumerable, not writable, unique id property
10 | * **WeakSet** based on a WeakMap and a simple `true` value per each key
11 |
12 | All collections are missing constructor functionality and Symbols features.
13 |
14 |
15 | ### How To
16 |
17 | The [index.js](./index.js) file is an ES2015 module you can include in your projects as such:
18 | ```js
19 | import {Map, Set, WeakMap, WeakSet} from 'poorlyfills';
20 | ```
21 | The native `Map`, `Set`, `WeakMap`, and `Weakset` will always be preferred over the fallback.
22 |
23 | If you'd like to simply include this package on your Web pages, you can do it via unpkg:
24 | ```html
25 |
26 |
27 | ```
28 |
29 |
30 | ### Compatibility
31 |
32 | You can test compatibility as both [ES2015 module](https://webreflection.github.io/poorlyfills/test/) and [ES5 transpiled](https://webreflection.github.io/poorlyfills/test/ie/) code for IE9+.
33 |
34 |
35 |
36 |
37 | ### ... but why ...
38 |
39 | After [this tweet](https://twitter.com/WebReflection/status/915645417571983360), and [this request](https://twitter.com/_developit/status/915668536344883200), and after writing myself these partial polyfills dunno how many times, I've decided to make it an official, fully test covered, package.
40 |
41 |
--------------------------------------------------------------------------------
/coverage/coverage.json:
--------------------------------------------------------------------------------
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/coverage/lcov-report/base.css:
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1 | body, html {
2 | margin:0; padding: 0;
3 | height: 100%;
4 | }
5 | body {
6 | font-family: Helvetica Neue, Helvetica, Arial;
7 | font-size: 14px;
8 | color:#333;
9 | }
10 | .small { font-size: 12px; }
11 | *, *:after, *:before {
12 | -webkit-box-sizing:border-box;
13 | -moz-box-sizing:border-box;
14 | box-sizing:border-box;
15 | }
16 | h1 { font-size: 20px; margin: 0;}
17 | h2 { font-size: 14px; }
18 | pre {
19 | font: 12px/1.4 Consolas, "Liberation Mono", Menlo, Courier, monospace;
20 | margin: 0;
21 | padding: 0;
22 | -moz-tab-size: 2;
23 | -o-tab-size: 2;
24 | tab-size: 2;
25 | }
26 | a { color:#0074D9; text-decoration:none; }
27 | a:hover { text-decoration:underline; }
28 | .strong { font-weight: bold; }
29 | .space-top1 { padding: 10px 0 0 0; }
30 | .pad2y { padding: 20px 0; }
31 | .pad1y { padding: 10px 0; }
32 | .pad2x { padding: 0 20px; }
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36 | .space-right2 { padding-right:20px; }
37 | .center { text-align:center; }
38 | .clearfix { display:block; }
39 | .clearfix:after {
40 | content:'';
41 | display:block;
42 | height:0;
43 | clear:both;
44 | visibility:hidden;
45 | }
46 | .fl { float: left; }
47 | @media only screen and (max-width:640px) {
48 | .col3 { width:100%; max-width:100%; }
49 | .hide-mobile { display:none!important; }
50 | }
51 |
52 | .quiet {
53 | color: #7f7f7f;
54 | color: rgba(0,0,0,0.5);
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56 | .quiet a { opacity: 0.7; }
57 |
58 | .fraction {
59 | font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace;
60 | font-size: 10px;
61 | color: #555;
62 | background: #E8E8E8;
63 | padding: 4px 5px;
64 | border-radius: 3px;
65 | vertical-align: middle;
66 | }
67 |
68 | div.path a:link, div.path a:visited { color: #333; }
69 | table.coverage {
70 | border-collapse: collapse;
71 | margin: 10px 0 0 0;
72 | padding: 0;
73 | }
74 |
75 | table.coverage td {
76 | margin: 0;
77 | padding: 0;
78 | vertical-align: top;
79 | }
80 | table.coverage td.line-count {
81 | text-align: right;
82 | padding: 0 5px 0 20px;
83 | }
84 | table.coverage td.line-coverage {
85 | text-align: right;
86 | padding-right: 10px;
87 | min-width:20px;
88 | }
89 |
90 | table.coverage td span.cline-any {
91 | display: inline-block;
92 | padding: 0 5px;
93 | width: 100%;
94 | }
95 | .missing-if-branch {
96 | display: inline-block;
97 | margin-right: 5px;
98 | border-radius: 3px;
99 | position: relative;
100 | padding: 0 4px;
101 | background: #333;
102 | color: yellow;
103 | }
104 |
105 | .skip-if-branch {
106 | display: none;
107 | margin-right: 10px;
108 | position: relative;
109 | padding: 0 4px;
110 | background: #ccc;
111 | color: white;
112 | }
113 | .missing-if-branch .typ, .skip-if-branch .typ {
114 | color: inherit !important;
115 | }
116 | .coverage-summary {
117 | border-collapse: collapse;
118 | width: 100%;
119 | }
120 | .coverage-summary tr { border-bottom: 1px solid #bbb; }
121 | .keyline-all { border: 1px solid #ddd; }
122 | .coverage-summary td, .coverage-summary th { padding: 10px; }
123 | .coverage-summary tbody { border: 1px solid #bbb; }
124 | .coverage-summary td { border-right: 1px solid #bbb; }
125 | .coverage-summary td:last-child { border-right: none; }
126 | .coverage-summary th {
127 | text-align: left;
128 | font-weight: normal;
129 | white-space: nowrap;
130 | }
131 | .coverage-summary th.file { border-right: none !important; }
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133 | .coverage-summary th.pic,
134 | .coverage-summary th.abs,
135 | .coverage-summary td.pct,
136 | .coverage-summary td.abs { text-align: right; }
137 | .coverage-summary td.file { white-space: nowrap; }
138 | .coverage-summary td.pic { min-width: 120px !important; }
139 | .coverage-summary tfoot td { }
140 |
141 | .coverage-summary .sorter {
142 | height: 10px;
143 | width: 7px;
144 | display: inline-block;
145 | margin-left: 0.5em;
146 | background: url(sort-arrow-sprite.png) no-repeat scroll 0 0 transparent;
147 | }
148 | .coverage-summary .sorted .sorter {
149 | background-position: 0 -20px;
150 | }
151 | .coverage-summary .sorted-desc .sorter {
152 | background-position: 0 -10px;
153 | }
154 | .status-line { height: 10px; }
155 | /* dark red */
156 | .red.solid, .status-line.low, .low .cover-fill { background:#C21F39 }
157 | .low .chart { border:1px solid #C21F39 }
158 | /* medium red */
159 | .cstat-no, .fstat-no, .cbranch-no, .cbranch-no { background:#F6C6CE }
160 | /* light red */
161 | .low, .cline-no { background:#FCE1E5 }
162 | /* light green */
163 | .high, .cline-yes { background:rgb(230,245,208) }
164 | /* medium green */
165 | .cstat-yes { background:rgb(161,215,106) }
166 | /* dark green */
167 | .status-line.high, .high .cover-fill { background:rgb(77,146,33) }
168 | .high .chart { border:1px solid rgb(77,146,33) }
169 | /* dark yellow (gold) */
170 | .medium .chart { border:1px solid #f9cd0b; }
171 | .status-line.medium, .medium .cover-fill { background: #f9cd0b; }
172 | /* light yellow */
173 | .medium { background: #fff4c2; }
174 | /* light gray */
175 | span.cline-neutral { background: #eaeaea; }
176 |
177 | .cbranch-no { background: yellow !important; color: #111; }
178 |
179 | .cstat-skip { background: #ddd; color: #111; }
180 | .fstat-skip { background: #ddd; color: #111 !important; }
181 | .cbranch-skip { background: #ddd !important; color: #111; }
182 |
183 |
184 | .cover-fill, .cover-empty {
185 | display:inline-block;
186 | height: 12px;
187 | }
188 | .chart {
189 | line-height: 0;
190 | }
191 | .cover-empty {
192 | background: white;
193 | }
194 | .cover-full {
195 | border-right: none !important;
196 | }
197 | pre.prettyprint {
198 | border: none !important;
199 | padding: 0 !important;
200 | margin: 0 !important;
201 | }
202 | .com { color: #999 !important; }
203 | .ignore-none { color: #999; font-weight: normal; }
204 |
205 | .wrapper {
206 | min-height: 100%;
207 | height: auto !important;
208 | height: 100%;
209 | margin: 0 auto -48px;
210 | }
211 | .footer, .push {
212 | height: 48px;
213 | }
214 |
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/coverage/lcov-report/index.html:
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1 |
2 |
3 |
4 | Code coverage report for All files
5 |
6 |
7 |
8 |
9 |
14 |
15 |
16 |
17 |
18 |
19 | /
20 |
21 |
22 |
23 | 100%
24 | Statements
25 | 44/44
26 |
27 |
28 | 100%
29 | Branches
30 | 15/15
31 |
32 |
33 | 100%
34 | Functions
35 | 9/9
36 |
37 |
38 | 100%
39 | Lines
40 | 37/37
41 |
42 |
43 |
44 |
45 |
46 |
47 |
48 |
49 | File |
50 | |
51 | Statements |
52 | |
53 | Branches |
54 | |
55 | Functions |
56 | |
57 | Lines |
58 | |
59 |
60 |
61 |
62 | poorlyfills/ |
63 | |
64 | 100% |
65 | 44/44 |
66 | 100% |
67 | 15/15 |
68 | 100% |
69 | 9/9 |
70 | 100% |
71 | 37/37 |
72 |
73 |
74 |
75 |
76 |
77 |
78 |
82 |
83 |
84 |
91 |
92 |
93 |
94 |
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/coverage/lcov-report/poorlyfills/index.c.js.html:
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1 |
2 |
3 |
4 | Code coverage report for poorlyfills/index.c.js
5 |
6 |
7 |
8 |
9 |
14 |
15 |
16 |
17 |
18 |
21 |
22 |
23 | 100%
24 | Statements
25 | 44/44
26 |
27 |
28 | 100%
29 | Branches
30 | 15/15
31 |
32 |
33 | 100%
34 | Functions
35 | 9/9
36 |
37 |
38 | 100%
39 | Lines
40 | 37/37
41 |
42 |
43 |
44 |
45 |
46 | 1
47 | 2
48 | 3
49 | 4
50 | 5
51 | 6
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56 | 11
57 | 12
58 | 13
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103 | 58
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105 | 60
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107 | 62
108 | 63
109 | 64
110 | 65
111 | 66
112 | 67
113 | 68
114 | 69 | 1×
115 |
116 |
117 | 1×
118 | 2×
119 | 4×
120 | 15×
121 | 2×
122 | 6×
123 |
124 |
125 | 5×
126 | 2×
127 | 2×
128 | 2×
129 | 4×
130 |
131 | 2×
132 |
133 |
134 | 5×
135 |
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142 | 1×
143 | 1×
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151 | 1×
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155 | 6×
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157 |
158 | 7×
159 | 4×
160 |
161 | 3×
162 |
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164 |
165 | 3×
166 |
167 |
168 |
169 |
170 | 1×
171 | 1×
172 | 1×
173 | 3×
174 |
175 |
176 | 1×
177 | 1×
178 |
179 |
180 |
181 |
182 | | ((window)=>{
183 | /*! (c) 2017 Andrea Giammarchi @WebReflection, (ISC) */
184 |
185 | window.Map = window.Map || function Map() {
186 | let i, k, v;
187 | const clear = () => { k = []; v = []; };
188 | const has = obj => -1 < (i = k.indexOf(obj));
189 | return clear(), {
190 | get size() { return k.length; },
191 | has,
192 | clear,
193 | get: obj => v[k.indexOf(obj)],
194 | keys: () => k.slice(),
195 | values: () => v.slice(),
196 | entries: () => k.map((key, i) => [key, v[i]]),
197 | delete: obj => has(obj) && k.splice(i, 1) && !!v.splice(i, 1),
198 | forEach(fn, self) {
199 | v.forEach((value, i) => fn.call(self, value, k[i], this));
200 | },
201 | set(obj, value) {
202 | return (has(obj) ?
203 | (v[i] = value) :
204 | (v[k.push(obj) - 1] = value)
205 | ), this;
206 | }
207 | };
208 | };
209 |
210 | window.Set = window.Set || function Set() {
211 | const m = new window.Map;
212 | const set = m.set;
213 | delete m.get;
214 | delete m.set;
215 | m.add = obj => set.call(m, obj, obj);
216 | return m;
217 | };
218 |
219 | let i = 0;
220 | const hOP = {}.hasOwnProperty;
221 | window.WeakMap = window.WeakMap || function WeakMap() {
222 | const id = '__' + [i++, Math.random()];
223 | const has = obj => hOP.call(obj, id);
224 | return {
225 | has,
226 | get: obj => obj[id],
227 | delete: obj => has(obj) && delete obj[id],
228 | set(obj, value) {
229 | Object.defineProperty(obj, id, {
230 | configurable: true,
231 | value
232 | });
233 | return this;
234 | }
235 | };
236 | };
237 |
238 | window.WeakSet = window.WeakSet || function WeakSet() {
239 | const wm = new window.WeakMap;
240 | return {
241 | has: obj => wm.get(obj) === true,
242 | delete: wm.delete,
243 | add(obj) {
244 | wm.set(obj, true);
245 | return this;
246 | }
247 | };
248 | };
249 |
250 | })(this); |
251 |
252 |
253 |
254 |
258 |
259 |
260 |
267 |
268 |
269 |
270 |
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1 |
2 |
3 |
4 | Code coverage report for poorlyfills/
5 |
6 |
7 |
8 |
9 |
14 |
15 |
16 |
17 |
18 |
19 | all files poorlyfills/
20 |
21 |
22 |
23 | 100%
24 | Statements
25 | 44/44
26 |
27 |
28 | 100%
29 | Branches
30 | 15/15
31 |
32 |
33 | 100%
34 | Functions
35 | 9/9
36 |
37 |
38 | 100%
39 | Lines
40 | 37/37
41 |
42 |
43 |
44 |
45 |
46 |
47 |
48 |
49 | File |
50 | |
51 | Statements |
52 | |
53 | Branches |
54 | |
55 | Functions |
56 | |
57 | Lines |
58 | |
59 |
60 |
61 |
62 | index.c.js |
63 | |
64 | 100% |
65 | 44/44 |
66 | 100% |
67 | 15/15 |
68 | 100% |
69 | 9/9 |
70 | 100% |
71 | 37/37 |
72 |
73 |
74 |
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76 |
77 |
78 |
82 |
83 |
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91 |
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/coverage/lcov-report/prettify.css:
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1 | .pln{color:#000}@media screen{.str{color:#080}.kwd{color:#008}.com{color:#800}.typ{color:#606}.lit{color:#066}.pun,.opn,.clo{color:#660}.tag{color:#008}.atn{color:#606}.atv{color:#080}.dec,.var{color:#606}.fun{color:red}}@media print,projection{.str{color:#060}.kwd{color:#006;font-weight:bold}.com{color:#600;font-style:italic}.typ{color:#404;font-weight:bold}.lit{color:#044}.pun,.opn,.clo{color:#440}.tag{color:#006;font-weight:bold}.atn{color:#404}.atv{color:#060}}pre.prettyprint{padding:2px;border:1px solid #888}ol.linenums{margin-top:0;margin-bottom:0}li.L0,li.L1,li.L2,li.L3,li.L5,li.L6,li.L7,li.L8{list-style-type:none}li.L1,li.L3,li.L5,li.L7,li.L9{background:#eee}
2 |
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/coverage/lcov-report/prettify.js:
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11 |
12 |
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/test/index.html:
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/test/test.js:
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1 | tressa.log('# ES6 collections poorlyfills');
2 | tressa.assert(
3 | typeof Map === 'function' &&
4 | typeof Map === typeof Set &&
5 | typeof WeakMap === typeof WeakSet &&
6 | typeof Map === typeof WeakMap,
7 | 'all functions'
8 | );
9 | tressa.assert(!/native/.test(WeakSet), 'testing poorlyfill');
10 |
11 | tressa.log('## Map');
12 | const m = new Map;
13 | tressa.assert(m.has(Math) === false, 'empty map has no keys');
14 | tressa.assert(m.get(Math) === undefined, 'no key, no value');
15 | tressa.assert(m.set(Math, String) === m, 'set returns the map');
16 | tressa.assert(m.has(Math) === true, 'added key is available');
17 | tressa.assert(m.get(Math) === String, 'if key, then value');
18 | m.set(Math, Object);
19 | tressa.assert(m.get(Math) === Object, 'overwrite key');
20 | tressa.assert(m.size === 1, 'correct size');
21 | for(let key of m.keys())
22 | tressa.assert(key === Math, 'correct key');
23 | for(let value of m.values())
24 | tressa.assert(value === Object, 'correct value');
25 | for(let entry of m.entries())
26 | tressa.assert(entry[0] === Math && entry[1] === Object, 'correct entries');
27 | m.forEach(
28 | function (value, key, collection) {
29 | tressa.assert(value === Object, 'forEach value');
30 | tressa.assert(key === Math, 'forEach key');
31 | tressa.assert(m === collection, 'forEach collection');
32 | tressa.assert(this === Array, 'forEach context');
33 | },
34 | Array
35 | );
36 | tressa.assert(m.delete(Math) === true, 'removed known key');
37 | tressa.assert(m.size === 0, 'deleted entry, reduced size');
38 | tressa.assert(m.get(Math) === undefined, 'deleted key, no value');
39 | tressa.assert(m.delete(Math) === false, 'removed unknown key');
40 | m.set(Math, String);
41 | m.clear();
42 | tressa.assert(m.get(Math) === undefined, 'cleared keys, no values');
43 | tressa.assert(m.size === 0, 'cleared keys, zero size');
44 |
45 | tressa.log('## Set');
46 | const s = new Set;
47 | tressa.assert(!s.get && !s.set, 'set has no get/set methods');
48 | tressa.assert(s.has(Math) === false, 'empty set has no keys');
49 | tressa.assert(s.add(Math) === s, 'add returns the set');
50 | tressa.assert(s.has(Math) === true, 'added key is available');
51 | tressa.assert(s.size === 1, 'correct size');
52 | for(let key of s.keys())
53 | tressa.assert(key === Math, 'correct key');
54 | for(let value of s.values())
55 | tressa.assert(value === Math, 'correct value');
56 | for(let entry of s.entries())
57 | tressa.assert(entry[0] === Math && entry[1] === entry[0], 'correct entries');
58 | m.forEach(
59 | function (value, key, collection) {
60 | tressa.assert(value === Math, 'forEach value');
61 | tressa.assert(key === value, 'forEach key');
62 | tressa.assert(s === collection, 'forEach collection');
63 | tressa.assert(this === Array, 'forEach context');
64 | },
65 | Array
66 | );
67 | tressa.assert(s.delete(Math) === true, 'removed known key');
68 | tressa.assert(s.size === 0, 'deleted key, reduced size');
69 | tressa.assert(s.has(Math) === false, 'deleted key, not present');
70 | tressa.assert(s.delete(Math) === false, 'removed unknown key');
71 | s.add(Math);
72 | s.clear();
73 | tressa.assert(s.has(Math) === false, 'cleared keys, no values');
74 | tressa.assert(s.size === 0, 'cleared keys, zero size');
75 |
76 | tressa.log('## WeakMap');
77 | const wm = new WeakMap;
78 | tressa.assert(wm.has(Math) === false, 'empty weak map has no keys');
79 | tressa.assert(wm.get(Math) === undefined, 'no key, no value');
80 | tressa.assert(wm.set(Math, String) === wm, 'set returns the weak map');
81 | tressa.assert(wm.has(Math) === true, 'added key is available');
82 | tressa.assert(wm.get(Math) === String, 'if key, then value');
83 | wm.set(Math, Object);
84 | tressa.assert(wm.get(Math) === Object, 'overwrite key');
85 | tressa.assert(wm.delete(Math) === true, 'removed known key');
86 | tressa.assert(wm.get(Math) === undefined, 'deleted key, no value');
87 | tressa.assert(wm.delete(Math) === false, 'removed unknown key');
88 |
89 |
90 | tressa.log('## WeakSet');
91 | const ws = new WeakSet;
92 | tressa.assert(ws.has(Math) === false, 'empty weak set has no keys');
93 | tressa.assert(ws.add(Math) === ws, 'add returns the weak set');
94 | tressa.assert(ws.has(Math) === true, 'added key is available');
95 | tressa.assert(ws.delete(Math) === true, 'removed known key');
96 | tressa.assert(ws.has(Math) === false, 'deleted key, not present');
97 | tressa.assert(ws.delete(Math) === false, 'removed unknown key');
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