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How can I remove a complete line if it contains a specific string like the following?
#RemoveMe
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To remove all occurrences of a substring from a string, call the replaceAll() method on the string, passing it the substring as the first parameter and an empty string as the second. The replaceAll method will return a new string, where all occurrences of the substring are removed.
You can also remove a specified character or substring from a string by calling the String. Replace(String, String) method and specifying an empty string (String. Empty) as the replacement. The following example removes all commas from a string.
Use the String. replace() method to remove all line breaks from a string, e.g. str. replace(/[\r\n]/gm, ''); . The replace() method will remove all line breaks from the string by replacing them with an empty string.
Delete all occurrences of a character in javascript string using replaceAll() The replaceAll() method in javascript replaces all the occurrences of a particular character or string in the calling string. The first argument: is the character or the string to be searched within the calling string and replaced.
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.
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