Function isEqual

MathBox/mathbox-bundle.js:37475–37477

* Performs a deep comparison between two values to determine if they are * equivalent to each other. If a callback is provided it will be executed * to compare values. If the callback returns `undefined` comparisons will * be handled by the method instead. The callback is bound to `th

(a, b, callback, thisArg)

     * // => true
     */
    function isEqual(a, b, callback, thisArg) {
      return baseIsEqual(a, b, typeof callback == 'function' && baseCreateCallback(callback, thisArg, 2));
    }

    /**
     * Checks if `value` is, or can be coerced to, a finite number.