用特定的字符串替换所有左空格 [英] Replace all left spaces with a specific string

问题描述

我有以下代码用特定的字符串替换左空格，但是，它不能按我的要求工作.

I have following code to replace left spaces with a specific string but, It is not working as I want.

console.log('  asdadasdad as asdasd asasd'.replace(/^\s+/, 'x'))

它用x改变了所有左边的空格，但是应该用x改变了所有左边的空格.

It changed all left spaces with x, but It should change every left spaces with one x.

但是我只需要以下输出:

But I just need this output:

xxasdadasdad as assasd asasd

我该怎么办?非常感谢.

How can I do it ? Thanks so much.

推荐答案

您可以使用

.replace(/\s/gy, 'x')

在这里，字符串开头的每个空格都被替换为 x . g (全局)和 y (粘性)修饰符的组合使它在字符串的开头匹配，然后连续匹配直到找不到匹配项.

Here, each whitespace that is at the start of the string is replaced with x. The combination of the g (global) and y (sticky) modifiers makes it match at the start of the string, and then consecutively until no match is found.

JS演示:

console.log(
  '  asdadasdad as asdasd asasd'.replace(/\s/gy, 'x')
)

这篇关于用特定的字符串替换所有左空格的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！