var variableABC = "A B C";
variableABC.replace('B', 'D') //wanted output: 'A D C'
but 'variableABC' didn't change :
variableABC = 'A B C'
when I want it to be 'A D C'.
See Question&Answers more detail:osvar variableABC = "A B C";
variableABC.replace('B', 'D') //wanted output: 'A D C'
but 'variableABC' didn't change :
variableABC = 'A B C'
when I want it to be 'A D C'.
See Question&Answers more detail:osAccording to the Javascript standard, String.replace
isn't supposed to modify the string itself. It just returns the modified string. You can refer to the Mozilla Developer Network documentation for more info.
You can always just set the string to the modified value:
variableABC = variableABC.replace('B', 'D')
Edit: The code given above is to only replace the first occurrence.
To replace all occurrences, you could do:
variableABC = variableABC.replace(/B/g, "D");
To replace all occurrences and ignore casing
variableABC = variableABC.replace(/B/gi, "D");