1
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var baseToString = require('./_baseToString'),
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2
|
castSlice = require('./_castSlice'),
|
3
|
hasUnicode = require('./_hasUnicode'),
|
4
|
isIterateeCall = require('./_isIterateeCall'),
|
5
|
isRegExp = require('./isRegExp'),
|
6
|
stringToArray = require('./_stringToArray'),
|
7
|
toString = require('./toString');
|
8
|
|
9
|
/** Used as references for the maximum length and index of an array. */
|
10
|
var MAX_ARRAY_LENGTH = 4294967295;
|
11
|
|
12
|
/**
|
13
|
* Splits `string` by `separator`.
|
14
|
*
|
15
|
* **Note:** This method is based on
|
16
|
* [`String#split`](https://mdn.io/String/split).
|
17
|
*
|
18
|
* @static
|
19
|
* @memberOf _
|
20
|
* @since 4.0.0
|
21
|
* @category String
|
22
|
* @param {string} [string=''] The string to split.
|
23
|
* @param {RegExp|string} separator The separator pattern to split by.
|
24
|
* @param {number} [limit] The length to truncate results to.
|
25
|
* @returns {Array} Returns the string segments.
|
26
|
* @example
|
27
|
*
|
28
|
* _.split('a-b-c', '-', 2);
|
29
|
* // => ['a', 'b']
|
30
|
*/
|
31
|
function split(string, separator, limit) {
|
32
|
if (limit && typeof limit != 'number' && isIterateeCall(string, separator, limit)) {
|
33
|
separator = limit = undefined;
|
34
|
}
|
35
|
limit = limit === undefined ? MAX_ARRAY_LENGTH : limit >>> 0;
|
36
|
if (!limit) {
|
37
|
return [];
|
38
|
}
|
39
|
string = toString(string);
|
40
|
if (string && (
|
41
|
typeof separator == 'string' ||
|
42
|
(separator != null && !isRegExp(separator))
|
43
|
)) {
|
44
|
separator = baseToString(separator);
|
45
|
if (!separator && hasUnicode(string)) {
|
46
|
return castSlice(stringToArray(string), 0, limit);
|
47
|
}
|
48
|
}
|
49
|
return string.split(separator, limit);
|
50
|
}
|
51
|
|
52
|
module.exports = split;
|