Having issues with your Angular custom pipe?

I've been working on creating a custom pipe that replaces one character with another, like changing hyphenated words to space separated words. However, despite following online tutorials and the Angular documentation, I can't seem to get it to work properly.

Check out my code on StackBlitz

pipe.ts

@Pipe({
  name: 'replace'
})
export class ReplacePipe implements PipeTransform {

  transform(value: string, replace: string, withThis: string): any {
    return value.replace(replace, withThis);
  }

}

html usage

<!-- hyphenate = 'some-hyphenated-string' -->

<div>{{hyphenated | replace: {replace: '-', withThis: ' '} }}</div>

Answer №1

1) Incorrect usage of your custom pipe:

Instead of:

<div>{{hyphenated | replace: {replace: '-', withThis: ' '} }}</div>

Use:

<div>{{hyphenated | replace: '-': ' '}}</div>

2) Issue with the replace function replacing only the first occurrence:

Instead of:

return value.replace(replace, withThis);

Use:

return value.replace(new RegExp(replace, 'g'), withThis);

Updated stackblitz

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