Function isStylingValuePresent

packages/core/src/render3/instructions/styling.ts:975–981

* Determines if the binding value should be used (or if the value is 'undefined' and hence priority * resolution should be used.) * * @param value Binding style value.

(value: any)

 * @param value Binding style value.
 */
function isStylingValuePresent(value: any): boolean {
  // Currently only `undefined` value is considered non-binding. That is `undefined` says I don't
  // have an opinion as to what this binding should be and you should consult other bindings by
  // priority to determine the valid value.
  // This is extracted into a single function so that we have a single place to control this.
  return value !== undefined;
}

/**
 * Normalizes and/or adds a suffix to the value.