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