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Last change
on this file since 188ee53 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago |
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initial commit
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File size:
523 bytes
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| 1 | var isSymbol = require('./isSymbol');
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| 2 |
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| 3 | /** Used as references for various `Number` constants. */
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| 4 | var INFINITY = 1 / 0;
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| 5 |
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| 6 | /**
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| 7 | * Converts `value` to a string key if it's not a string or symbol.
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| 8 | *
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| 9 | * @private
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| 10 | * @param {*} value The value to inspect.
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| 11 | * @returns {string|symbol} Returns the key.
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| 12 | */
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| 13 | function toKey(value) {
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| 14 | if (typeof value == 'string' || isSymbol(value)) {
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| 15 | return value;
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| 16 | }
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| 17 | var result = (value + '');
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| 18 | return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;
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| 19 | }
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| 20 |
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| 21 | module.exports = toKey;
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