Function registerEasing

velocity.js:269–281

* Used to register a easing. This should never be called by users * directly, instead it should be called via an action: * Velocity("registerEasing", "name", VelocityEasingFn);

(args)

   * <code>Velocity("registerEasing", "name", VelocityEasingFn);</code>
   */
  function registerEasing(args) {
      var name = args[0],
          callback = args[1];
      if (!isString(name)) {
          console.warn("VelocityJS: Trying to set 'registerEasing' name to an invalid value:", name);
      } else if (!isFunction(callback)) {
          console.warn("VelocityJS: Trying to set 'registerEasing' callback to an invalid value:", name, callback);
      } else if (Easings[name]) {
          console.warn("VelocityJS: Trying to override 'registerEasing' callback", name);
      } else {
          Easings[name] = callback;
      }
  }
  registerAction(["registerEasing", registerEasing], true);
  /**
   * Linear easing, used for sequence parts that don't have an actual easing