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37 lines
1.1 KiB
37 lines
1.1 KiB
var Symbol = require('./_Symbol'), |
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arrayMap = require('./_arrayMap'), |
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isArray = require('./isArray'), |
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isSymbol = require('./isSymbol'); |
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/** Used as references for various `Number` constants. */ |
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var INFINITY = 1 / 0; |
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/** Used to convert symbols to primitives and strings. */ |
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var symbolProto = Symbol ? Symbol.prototype : undefined, |
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symbolToString = symbolProto ? symbolProto.toString : undefined; |
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/** |
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* The base implementation of `_.toString` which doesn't convert nullish |
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* values to empty strings. |
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* |
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* @private |
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* @param {*} value The value to process. |
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* @returns {string} Returns the string. |
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*/ |
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function baseToString(value) { |
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// Exit early for strings to avoid a performance hit in some environments. |
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if (typeof value == 'string') { |
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return value; |
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} |
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if (isArray(value)) { |
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// Recursively convert values (susceptible to call stack limits). |
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return arrayMap(value, baseToString) + ''; |
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} |
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if (isSymbol(value)) { |
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return symbolToString ? symbolToString.call(value) : ''; |
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} |
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var result = (value + ''); |
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return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result; |
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} |
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module.exports = baseToString;
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