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Last change
on this file was a762898, checked in by istevanoska <ilinastevanoska@…>, 5 months ago |
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Added visualizations
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File size:
424 bytes
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| [a762898] | 1 | const IS_UNSIGNED_INTEGER = /^(?:0|[1-9]\d*)$/;
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| 2 | function isIndex(value, length = Number.MAX_SAFE_INTEGER) {
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| 3 | switch (typeof value) {
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| 4 | case 'number': {
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| 5 | return Number.isInteger(value) && value >= 0 && value < length;
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| 6 | }
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| 7 | case 'symbol': {
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| 8 | return false;
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| 9 | }
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| 10 | case 'string': {
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| 11 | return IS_UNSIGNED_INTEGER.test(value);
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| 12 | }
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| 13 | }
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| 14 | }
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| 15 |
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| 16 | export { isIndex };
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