mirror of
https://github.com/actions/setup-python
synced 2024-11-30 21:22:28 +08:00
44 lines
1.2 KiB
JavaScript
44 lines
1.2 KiB
JavaScript
|
var baseToString = require('./_baseToString'),
|
||
|
castSlice = require('./_castSlice'),
|
||
|
charsStartIndex = require('./_charsStartIndex'),
|
||
|
stringToArray = require('./_stringToArray'),
|
||
|
toString = require('./toString');
|
||
|
|
||
|
/** Used to match leading and trailing whitespace. */
|
||
|
var reTrimStart = /^\s+/;
|
||
|
|
||
|
/**
|
||
|
* Removes leading whitespace or specified characters from `string`.
|
||
|
*
|
||
|
* @static
|
||
|
* @memberOf _
|
||
|
* @since 4.0.0
|
||
|
* @category String
|
||
|
* @param {string} [string=''] The string to trim.
|
||
|
* @param {string} [chars=whitespace] The characters to trim.
|
||
|
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
|
||
|
* @returns {string} Returns the trimmed string.
|
||
|
* @example
|
||
|
*
|
||
|
* _.trimStart(' abc ');
|
||
|
* // => 'abc '
|
||
|
*
|
||
|
* _.trimStart('-_-abc-_-', '_-');
|
||
|
* // => 'abc-_-'
|
||
|
*/
|
||
|
function trimStart(string, chars, guard) {
|
||
|
string = toString(string);
|
||
|
if (string && (guard || chars === undefined)) {
|
||
|
return string.replace(reTrimStart, '');
|
||
|
}
|
||
|
if (!string || !(chars = baseToString(chars))) {
|
||
|
return string;
|
||
|
}
|
||
|
var strSymbols = stringToArray(string),
|
||
|
start = charsStartIndex(strSymbols, stringToArray(chars));
|
||
|
|
||
|
return castSlice(strSymbols, start).join('');
|
||
|
}
|
||
|
|
||
|
module.exports = trimStart;
|