主题
padStart
js
_.padStart([string=''], [length=0], [chars=' '])
如果 string
短于 length
,则在左侧填充 string
。如果填充字符超过 length
,则会被截断。
¥Pads string
on the left side if it's shorter than length
. Padding characters are truncated if they exceed length
.
新增于
¥Since
4.0.0
参数
¥Arguments
[string='']
(字符串):要填充的字符串。¥
[string='']
(string): The string to pad.[length=0]
(数值):要检查的路径。¥
[length=0]
(number): The padding length.[chars=' ']
(字符串):用作填充的字符串。¥
[chars=' ']
(string): The string used as padding.
返回
¥Returns
(字符串):返回填充后的字符串。
¥(string): Returns the padded string.
示例
¥Example
js
_.padStart('abc', 6);
// => ' abc'
_.padStart('abc', 6, '_-');
// => '_-_abc'
_.padStart('abc', 3);
// => 'abc'