By

class

Contents

Static methods
all()
css()
directive()

Predicates for use with DebugElement's query functions.

      
      class By {
  static all(): Predicate<DebugElement>
  static css(selector: string): Predicate<DebugElement>
  static directive(type: Type<any>): Predicate<DebugElement>
}

Static methods

all()
Match all elements.
static all(): Predicate<DebugElement> `static all(): Predicate<DebugElement>` Parameters There are no parameters. Returns `Predicate<DebugElement>`
Usage Notes Example debugElement.query(By.all()); `debugElement.query(By.all());`

all()

Match all elements.

      
      static all(): Predicate<DebugElement>

Parameters

There are no parameters.

Returns

Predicate<DebugElement>

Usage Notes

Example

      
      debugElement.query(By.all());

css()

Match elements by the given CSS selector.

      
      static css(selector: string): Predicate<DebugElement>

Parameters

selector string

Returns

Predicate<DebugElement>

Usage Notes

Example

      
      debugElement.query(By.css('[attribute]'));

directive()

Match elements that have the given directive present.

      
      static directive(type: Type<any>): Predicate<DebugElement>

Parameters

type Type

Returns

Predicate<DebugElement>

Usage Notes

Example

      
      debugElement.query(By.directive(MyDirective));