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Support symbols in property paths of set. [closes #3189]

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John-David Dalton
2017-06-06 07:06:47 -07:00
parent b107653a0f
commit bacaaaef8a
1 changed files with 5 additions and 2 deletions
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7
.internal/isIndex.js
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@@ -13,10 +13,13 @@ const reIsUint = /^(?:0|[1-9]\d*)$/
* @returns {boolean} Returns `true` if `value` is a valid index, else `false`.
*/
function isIndex(value, length) {
const type = typeof value
length = length == null ? MAX_SAFE_INTEGER : length
return !!length &&
(typeof value == 'number' || reIsUint.test(value)) &&
(value > -1 && value % 1 == 0 && value < length)
(type == 'number' ||
(type != 'symbol' && reIsUint.test(value))) &&
(value > -1 && value % 1 == 0 && value < length)
}
export default isIndex