call,apply,bind in js

cab.js

// CallApplyBind examples, cuz i occassionally forget call and apply

function fn(x,y) {
  return x+y+this.z
}


var obj={ z: 4 };

var objfn=fn.bind(obj);


// fn.call(thisarg, arg1...)
console.log(fn.call(obj,2,3));

// fn.apply(thisarg, [list of args])
console.log(fn.apply(obj, [2,3]));

// objfn is fn but with `this` binded to obj
console.log(objfn(2,3));