typeOf("Hello") => string
JS Object method
this
event callback stack vs callback queue
lodash, underscore
this in nested function won't work 3 solutions:
- var that = this OR var _this = this
- function(){}.bind(this); ✔︎
- myFunction.call(this);
bind will overide the call!!!!
self calling function function(){}();
document.links[20].style.color