@angular/common

LowerCasePipe

pipe

stable

Transforms text to all lower case.

Pipe usage

{{ value_expression | lowercase }}

API

  class LowerCasePipe implements PipeTransform {
}

transform

3 overloads

@paramvaluestring

The string to transform to lower case.

@returnsstring

@paramvaluenull | undefined

@returnsnull

@paramvaluestring | null | undefined

@returnsstring | null

Description

Transforms text to all lower case.

Exported by

CommonModule

Usage Notes

The following example defines a view that allows the user to enter text, and then uses the pipe to convert the input text to all lower case.

@Component({ selector: 'lowerupper-pipe', template: `<div> <label>Name: </label><input #name (keyup)="change(name.value)" type="text" /> <p>In lowercase:</p> <pre>'{{ value | lowercase }}'</pre> <p>In uppercase:</p> <pre>'{{ value | uppercase }}'</pre> </div>`, standalone: false,})export class LowerUpperPipeComponent { value: string = ''; change(value: string) { this.value = value; }}