Function isBlank

packages/core/test/render3/utils.ts:36–38

* Tests to see if the line is blank. * * A blank line is such which contains only whitespace. * @param text string to test for blank-ness.

(text: string)

 * @param text string to test for blank-ness.
 */
function isBlank(text: string): boolean {
  return /^\s*$/.test(text);
}

/**
 * Returns number of whitespace leading characters.