Javascript string.replace（）进行替换

Question

I am trying to do a querystring replace in javascript:

s = "http://localhost:8000/i/dashboard-view?&level_to_load=2#;"
s.replace('level_to_load=\d','HELLO')
"http://localhost:8000/i/dashboard-view?&level_to_load=2#;"

The result I want is:

"http://localhost:8000/i/dashboard-view?&HELLO#;"

What would be the correct regex to use, over level_to_load=\\d ?

Answer 1

您需要传递正则表达式，而不是字符串：

s.replace(/level_to_load=\d/,'HELLO')