22 lines
523 B
JavaScript
22 lines
523 B
JavaScript
|
var isSymbol = require('./isSymbol');
|
||
|
|
|
||
|
|
/** Used as references for various `Number` constants. */
|
||
|
|
var INFINITY = 1 / 0;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Converts `value` to a string key if it's not a string or symbol.
|
||
|
|
*
|
||
|
|
* @private
|
||
|
|
* @param {*} value The value to inspect.
|
||
|
|
* @returns {string|symbol} Returns the key.
|
||
|
|
*/
|
||
|
|
function toKey(value) {
|
||
|
|
if (typeof value == 'string' || isSymbol(value)) {
|
||
|
|
return value;
|
||
|
|
}
|
||
|
|
var result = (value + '');
|
||
|
|
return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;
|
||
|
|
}
|
||
|
|
|
||
|
|
module.exports = toKey;
|