Function constructDetailsForInterpolation

packages/core/src/render3/errors.ts:102–118

(
  lView: LView,
  rootIndex: number,
  expressionIndex: number,
  meta: string,
  changedValue: any,
)

}

function constructDetailsForInterpolation(
  lView: LView,
  rootIndex: number,
  expressionIndex: number,
  meta: string,
  changedValue: any,
) {
  const [propName, prefix, ...chunks] = meta.split(INTERPOLATION_DELIMITER);
  let oldValue = prefix,
    newValue = prefix;
  for (let i = 0; i < chunks.length; i++) {
    const slotIdx = rootIndex + i;
    oldValue += `${lView[slotIdx]}${chunks[i]}`;
    newValue += `${slotIdx === expressionIndex ? changedValue : lView[slotIdx]}${chunks[i]}`;
  }
  return {propName, oldValue, newValue};
}

/**
 * Constructs an object that contains details for the ExpressionChangedAfterItHasBeenCheckedError: