JavaScript: how to remove line that contain specific string

Question

hi, how can i remove a complete line if it's contain specific string like

#RemoveMe

thanks in advance

Answer 1

str.indexOf("#RemoveMe") >= 0 // substring found

See doc.

Answer 2

If you have a multi-line string, you could use a RegExp with the m flag:

var str = 'line1\n'+
'line2\n'+
'#RemoveMe line3\n'+
'line4';

str.replace(/^.*#RemoveMe.*$/mg, "");

The m flag will treat the ^ and $ meta characters as the beginning and end of each line, not the beginning or end of the whole string.

Answer 3

@CMS

Thank you, it's work