Function isNative

MathBox/mathbox-bundle.js:36617–36619

* Checks if `value` is a native function. * * @private * @param {*} value The value to check. * @returns {boolean} Returns `true` if the `value` is a native function, else `false`.

(value)

     * @returns {boolean} Returns `true` if the `value` is a native function, else `false`.
     */
    function isNative(value) {
      return typeof value == 'function' && reNative.test(value);
    }

    /**
     * Sets `this` binding data on a given function.