@angular/platform-browser

By

Class

stable

Predicates for use with DebugElement's query functions.

API

  
    class By {}

Predicate<DebugNode>

Match all nodes.

@returnsPredicate<DebugNode>

Usage notes

{@example platform-browser/dom/debug/ts/by/by.ts region='by_all'}

Predicate<DebugElement>

Match elements by the given CSS selector.

@paramselectorstring

@returnsPredicate<DebugElement>

Usage notes

{@example platform-browser/dom/debug/ts/by/by.ts region='by_css'}

Predicate<DebugNode>

Match nodes that have the given directive present.

@paramtypeType<any>

@returnsPredicate<DebugNode>

Usage notes

{@example platform-browser/dom/debug/ts/by/by.ts region='by_directive'}