1
|
var assocIndexOf = require('./_assocIndexOf');
|
2
|
|
3
|
/** Used for built-in method references. */
|
4
|
var arrayProto = Array.prototype;
|
5
|
|
6
|
/** Built-in value references. */
|
7
|
var splice = arrayProto.splice;
|
8
|
|
9
|
/**
|
10
|
* Removes `key` and its value from the list cache.
|
11
|
*
|
12
|
* @private
|
13
|
* @name delete
|
14
|
* @memberOf ListCache
|
15
|
* @param {string} key The key of the value to remove.
|
16
|
* @returns {boolean} Returns `true` if the entry was removed, else `false`.
|
17
|
*/
|
18
|
function listCacheDelete(key) {
|
19
|
var data = this.__data__,
|
20
|
index = assocIndexOf(data, key);
|
21
|
|
22
|
if (index < 0) {
|
23
|
return false;
|
24
|
}
|
25
|
var lastIndex = data.length - 1;
|
26
|
if (index == lastIndex) {
|
27
|
data.pop();
|
28
|
} else {
|
29
|
splice.call(data, index, 1);
|
30
|
}
|
31
|
--this.size;
|
32
|
return true;
|
33
|
}
|
34
|
|
35
|
module.exports = listCacheDelete;
|