Function strToNumber

packages/common/src/pipes/number_pipe.ts:324–336

* Transforms a string into a number (if needed).

(value: number | string)

 * Transforms a string into a number (if needed).
 */
function strToNumber(value: number | string): number {
  // Convert strings to numbers
  if (typeof value === 'string' && !isNaN(Number(value) - parseFloat(value))) {
    return Number(value);
  }
  if (typeof value !== 'number') {
    throw new RuntimeError(
      RuntimeErrorCode.VALUE_NOT_A_NUMBER,
      ngDevMode && `${value} is not a number`,
    );
  }
  return value;
}