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TypeScript - TypeError: text.replaceAll is not a function error
2
answers
3
points
When I try to use the replaceAll method, the compiler yields the error below. How can make it work?
Error message:
TypeError: text.replaceAll is not a function
My code:
let text: string = 'a xxx b xxx c';
const letter: string = 'x';
const replacement: string = 'y';
text = text.replaceAll(letter, replacement);
2 answers
7
points
I don't know in what environment you want to use String replaceAll() method, but that function appeard in ES2021. So, add ES2021.String lib in tsconfig.json.
Example tsconfig.json file:
{
...
"compilerOptions": {
...
"lib": [..., "ES2021.String", ...]
...
}
...
}
Running compiled/transpiled TypeScript source code into JavaScript, be sure that you use modern web browser, Polyfill or Node.js >= v16.
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3
points
You can simply use replace() method with a regular expression with the global flag instead.
Practical example:
let text: string = 'a xxx b xxx c';
text = text.replace(/x/g, 'y');
console.log(text);
// Output:
// a yyy b yyy c
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