underscore.function.dispatch.js

// Underscore-contrib (underscore.function.dispatch.js 0.3.0)
// (c) 2013 Justin Ridgewell
// Underscore-contrib may be freely distributed under the MIT license.

(function() {

  // Baseline setup
  // --------------

  // Establish the root object, `window` in the browser, or `require` it on the server.
  if (typeof exports === 'object') {
    _ = module.exports = require('underscore');
  }

  // Helpers
  // -------

  // Create quick reference variable for speed.
  var slice   = Array.prototype.slice;

  // Mixing in the attempt function
  // ------------------------

  _.mixin({
    // If object is not undefined or null then invoke the named `method` function
    // with `object` as context and arguments; otherwise, return undefined.
    attempt: function(object, method) {
      if (object == null) return void 0;
      var func = object[method];
      var args = slice.call(arguments, 2);
      return _.isFunction(func) ? func.apply(object, args) : void 0;
    }
  });

}).call(this);