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

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John-David Dalton
2018-02-02 15:50:02 -08:00
parent 7cb477a3a0
commit 45ac7f3bcc
1 changed files with 6 additions and 3 deletions
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9
lodash.js
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@@ -6271,10 +6271,13 @@
* @returns {boolean} Returns `true` if `value` is a valid index, else `false`. * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.
*/ */
function isIndex(value, length) { function isIndex(value, length) {
length = length == null ? MAX_SAFE_INTEGER : length; var type = typeof value
length = length == null ? MAX_SAFE_INTEGER : length
return !!length && return !!length &&
(typeof value == 'number' || reIsUint.test(value)) && (type == 'number' ||
(value > -1 && value % 1 == 0 && value < length); (type != 'symbol' && reIsUint.test(value))) &&
(value > -1 && value % 1 == 0 && value < length)
} }
/** /**