Function bindCallback

lib/web/jshint.js:4419–4443

* A specialized version of `baseCallback` which only supports `this` binding * and specifying the number of arguments to provide to `func`. * * @private * @param {Function} func The function to bind. * @param {*} thisArg The `this` binding of `func`. * @param {number} [

(func, thisArg, argCount)

     * @returns {Function} Returns the callback.
     */
    function bindCallback(func, thisArg, argCount) {
      if (typeof func != 'function') {
        return identity;
      }
      if (thisArg === undefined) {
        return func;
      }
      switch (argCount) {
        case 1: return function(value) {
          return func.call(thisArg, value);
        };
        case 3: return function(value, index, collection) {
          return func.call(thisArg, value, index, collection);
        };
        case 4: return function(accumulator, value, index, collection) {
          return func.call(thisArg, accumulator, value, index, collection);
        };
        case 5: return function(value, other, key, object, source) {
          return func.call(thisArg, value, other, key, object, source);
        };
      }
      return function() {
        return func.apply(thisArg, arguments);
      };
    }

    /**
     * Creates a clone of the given array buffer.