Function assertDomElement

packages/core/src/render3/util/discovery_utils.ts:509–513

Asserts that a value is a DOM Element.

(value: any)

/** Asserts that a value is a DOM Element. */
function assertDomElement(value: any) {
  if (typeof Element !== 'undefined' && !(value instanceof Element)) {
    throw new Error('Expecting instance of DOM Element');
  }
}

/**
 * A directive definition holds additional metadata using bitwise flags to indicate