aaac7fed
 liuqimichale
add
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var baseToString = require('./_baseToString'),
castSlice = require('./_castSlice'),
hasUnicode = require('./_hasUnicode'),
isIterateeCall = require('./_isIterateeCall'),
isRegExp = require('./isRegExp'),
stringToArray = require('./_stringToArray'),
toString = require('./toString');
/** Used as references for the maximum length and index of an array. */
var MAX_ARRAY_LENGTH = 4294967295;
/**
* Splits `string` by `separator`.
*
* **Note:** This method is based on
* [`String#split`](https://mdn.io/String/split).
*
* @static
* @memberOf _
* @since 4.0.0
* @category String
* @param {string} [string=''] The string to split.
* @param {RegExp|string} separator The separator pattern to split by.
* @param {number} [limit] The length to truncate results to.
* @returns {Array} Returns the string segments.
* @example
*
* _.split('a-b-c', '-', 2);
* // => ['a', 'b']
*/
function split(string, separator, limit) {
if (limit && typeof limit != 'number' && isIterateeCall(string, separator, limit)) {
separator = limit = undefined;
}
limit = limit === undefined ? MAX_ARRAY_LENGTH : limit >>> 0;
if (!limit) {
return [];
}
string = toString(string);
if (string && (
typeof separator == 'string' ||
(separator != null && !isRegExp(separator))
)) {
separator = baseToString(separator);
if (!separator && hasUnicode(string)) {
return castSlice(stringToArray(string), 0, limit);
}
}
return string.split(separator, limit);
}
module.exports = split;
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