mirror of
https://github.com/whoisclebs/lodash.git
synced 2026-02-05 17:37:50 +00:00
Bump to v3.0.0.
This commit is contained in:
50
string/pad.js
Normal file
50
string/pad.js
Normal file
@@ -0,0 +1,50 @@
|
||||
define(['../internal/baseToString', '../internal/createPad', '../internal/root'], function(baseToString, createPad, root) {
|
||||
|
||||
/** Native method references. */
|
||||
var ceil = Math.ceil,
|
||||
floor = Math.floor;
|
||||
|
||||
/* Native method references for those with the same name as other `lodash` methods. */
|
||||
var nativeIsFinite = root.isFinite;
|
||||
|
||||
/**
|
||||
* Pads `string` on the left and right sides if it is shorter then the given
|
||||
* padding length. The `chars` string may be truncated if the number of padding
|
||||
* characters can't be evenly divided by the padding length.
|
||||
*
|
||||
* @static
|
||||
* @memberOf _
|
||||
* @category String
|
||||
* @param {string} [string=''] The string to pad.
|
||||
* @param {number} [length=0] The padding length.
|
||||
* @param {string} [chars=' '] The string used as padding.
|
||||
* @returns {string} Returns the padded string.
|
||||
* @example
|
||||
*
|
||||
* _.pad('abc', 8);
|
||||
* // => ' abc '
|
||||
*
|
||||
* _.pad('abc', 8, '_-');
|
||||
* // => '_-abc_-_'
|
||||
*
|
||||
* _.pad('abc', 3);
|
||||
* // => 'abc'
|
||||
*/
|
||||
function pad(string, length, chars) {
|
||||
string = baseToString(string);
|
||||
length = +length;
|
||||
|
||||
var strLength = string.length;
|
||||
if (strLength >= length || !nativeIsFinite(length)) {
|
||||
return string;
|
||||
}
|
||||
var mid = (length - strLength) / 2,
|
||||
leftLength = floor(mid),
|
||||
rightLength = ceil(mid);
|
||||
|
||||
chars = createPad('', rightLength, chars);
|
||||
return chars.slice(0, leftLength) + string + chars;
|
||||
}
|
||||
|
||||
return pad;
|
||||
});
|
||||
Reference in New Issue
Block a user