Why do you think I see this weird message “replaceAll is not a function”? It definitely is!
When I call replaceAll with your arguments, I get a slightly different error message:
String.prototype.replaceAll argument must not be a non-global regular expression
Try calling replaceAll with a g modifier for the regex, works for me then:
From the mdn docs:
Global flag required when calling replaceAll with regex
Yeah, I read that requirement about the necessity of the global flag though it didn’t help me
Also. as a bonus question, why would I need
replaceAll() if I can include the global flag in a regular
replace() and get the same result?
Who says you do?
There’s a difference between both methods is you use a string rather than a regex as first argument:
console.log('ha ha ha'.replace(' ','*')) // "ha*ha ha" console.log('ha ha ha'.replaceAll(' ','*')) // "ha*ha*ha"
Just saves some typing, I guess. No need for a regex if you have such a simple pattern…
But if I use regex, it’s all the same, isn’t it?
Not quite. You can use replace with a regex for the replacement of the first occurrence:
console.log('ha ha ha'.replace(/\s+/,'*')) // "ha*ha ha" console.log('ha ha ha'.replaceAll(/\s+/g,'*')) // "ha*ha*ha"
But there’s no need for using replaceAll with a regex, I guess.