Function assertBetween

packages/core/src/render3/assert.ts:155–159

(lower: number, upper: number, index: number)

}

export function assertBetween(lower: number, upper: number, index: number) {
  if (!(lower <= index && index < upper)) {
    throwError(`Index out of range (expecting ${lower} <= ${index} < ${upper})`);
  }
}

export function assertProjectionSlots(lView: LView, errMessage?: string) {
  assertDefined(lView[DECLARATION_COMPONENT_VIEW], 'Component views should exist.');