Need a way to identify a specific variable type using a key on a string

Asked Dec 05 '20 at 00:47

Active Dec 05 '20 at 00:56

Viewed 28 times

Is there a way to convert this to a specific value to use in the replaceAll()? The problem I am running into is that the program is replacing the specific spot rather than the type of variable.

var input = "a=1 a"
var letter = {input:1} 
var letterVal = {input:3}
var replaceletter = input.replaceAll(letter, letterVal)

edited Dec 05 '20 at 00:56

asked Dec 05 '20 at 00:47

FireTiger

The snippet as given doesn't make sense. You're using input as a key in lines 1 and 2, but then you're using it as a variable on line 3. – Charlie Bamford Dec 05 '20 at 00:50
That is my problem. I need to convert this key to a variable. – FireTiger Dec 05 '20 at 00:50
Okay. Do you want the word "input"? – Charlie Bamford Dec 05 '20 at 00:51
Input is a string. I want if the string is "1=a 1", the string will change to "a=a a." – FireTiger Dec 05 '20 at 00:52
Actually, reverse that; "a=1 a" > "1=1 1" – FireTiger Dec 05 '20 at 00:53
So like `input.replaceAll(input.substr(0, 1), input.substr(2, 1));`? – Charlie Bamford Dec 05 '20 at 00:56
I think that this might work. – FireTiger Dec 05 '20 at 00:57
Thank you so much! I didn't know this method (I'm new to javascript). – FireTiger Dec 05 '20 at 01:16
Please, also check this answer: https://stackoverflow.com/a/1145525/2610061 . `String.replaceAll()` is a new feature (August 2020) and will not work in IE and in node.js. – Carsten Massmann Dec 05 '20 at 06:51

Need a way to identify a specific variable type using a key on a string

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