# Trying to create a function with replace and variables
**URL:** https://discourse.nodered.org/t/trying-to-create-a-function-with-replace-and-variables/34861
**Category:** General
**Created:** [26 October 2020 21:50 UTC](https://discourse.nodered.org/t/trying-to-create-a-function-with-replace-and-variables/34861 "2020-10-26T21:50:09Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@RogierQ](https://discourse.nodered.org/u/RogierQ)
#### Post date: [26 October 2020 21:50 UTC](https://discourse.nodered.org/t/trying-to-create-a-function-with-replace-and-variables/34861/1 "2020-10-26T21:50:09Z")
Last frustration for tonight i hope 😉
i created the function below
```auto
function findReplace(find,replace,html) {
html = html.replace( find/g, replace ); //(/blue/gi, "red");
return html;
}
```
where find is a variable
i want to change every time the variable is found
normally with just one word this works with `(/blue/g, "red");`
but when i replace blue with find the variable becomes fixed... mwaaa
i guess i have to do something with // \ /\ / but no matter what i try i get errors and in google i use or the wrong search tag or there is no answer...
How does this needs to be done?
---
### Author:  [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)
#### Post date: [26 October 2020 22:44 UTC](https://discourse.nodered.org/t/trying-to-create-a-function-with-replace-and-variables/34861/2 "2020-10-26T22:44:38Z")
This should help...
> **[String.prototype.replaceAll()](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/replaceAll)**
>
> The replaceAll() method returns a new string with all matches of a pattern replaced by a replacement.
---
### Author:  [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)
#### Post date: [26 October 2020 22:50 UTC](https://discourse.nodered.org/t/trying-to-create-a-function-with-replace-and-variables/34861/3 "2020-10-26T22:50:32Z")
Actually, I don't thing replaceAll is in node yet
Try this...
```auto
function replaceAll(str, find, replace) {
return str.replace(new RegExp(find, 'g'), replace);
}
```
---
### Author:  [@RogierQ](https://discourse.nodered.org/u/RogierQ)
#### Post date: [26 October 2020 22:50 UTC](https://discourse.nodered.org/t/trying-to-create-a-function-with-replace-and-variables/34861/4 "2020-10-26T22:50:42Z")
Thanks!
I tried that but this gives me this error
```auto
"TypeError: payload.replaceAll is not a function"
```
tried replaceAll() in other projects but allways an error
---
### Author:  [@RogierQ](https://discourse.nodered.org/u/RogierQ)
#### Post date: [26 October 2020 22:51 UTC](https://discourse.nodered.org/t/trying-to-create-a-function-with-replace-and-variables/34861/5 "2020-10-26T22:51:11Z")
you are right, thanks i try that!
---
### Author:  [@system](https://discourse.nodered.org/u/system)
#### Post date: [25 December 2020 22:51 UTC](https://discourse.nodered.org/t/trying-to-create-a-function-with-replace-and-variables/34861/6 "2020-12-25T22:51:14Z")
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