call by value and call by reference
in Programming on Javascript
Javascript Basic
if data type in var is primitive data, it’s call by value
Javascript Basic
Standard Built-in Object and Expansion
in Programming on Javascript
Javascript Basic
Standard Built-in Object
- Object
- Function
- Array
- String
- Boolean
- Number
- Math
- Date
- RegExp
prototype chain
in Programming on Javascript
Javascript Basic
prototype ```javascript function Ultra(){} Ultra.prototype.ultraProp = true;