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35 lines
1.0 KiB
JavaScript
35 lines
1.0 KiB
JavaScript
import isSymbol from '../isSymbol.js'
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/** Used as references for various `Number` constants. */
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const INFINITY = 1 / 0
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/** Used to convert symbols to primitives and strings. */
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const symbolProto = Symbol ? Symbol.prototype : undefined
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const 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 (Array.isArray(value)) {
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// Recursively convert values (susceptible to call stack limits).
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return `${value.map(baseToString)}`
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}
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if (isSymbol(value)) {
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return symbolToString ? symbolToString.call(value) : ''
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}
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const result = `${value}`
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return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result
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}
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export default baseToString
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