Match the start of each new line with JavaScript regex

Question

I have a string with possible \\n in them. Think of:

 Foo1
  Foo2
Foo3  Foo4.

I want to replace   's at the start of each line, but the above is one string. ^nbsp; only matches the first   before Foo1 . I want to do at the start of any newline, look for   . Any ideas?

So, I want a regex that'll match the first two   's above, but not the 3rd.

Answer 1

您需要使用/m标志启用multiline匹配模式，以便将每一行作为单独的行进行匹配。

/^(?: )+/gm