javascript--Object

Source: Internet
Author: User

There are two ways to access object properties, one is the dot operator ( . ), and the other is the bracket operator ( [] ).

When you know the name of the property, use the dot operator.

This is an example of using the dot operator to read an object's properties:

var Mydog = {
"Name": "Bob",
"Legs": 4
};
var xing = mydog.name; Bob
var run = Mydog.legs; 4

The second way to access an object is the bracket operator ( [] ), and if the name of the property you want to access has a space, you can use the Bracket operator ( [] ) only.

This is an example of using the bracket operator ( [] ) to read an object's properties:

var Mydog = {
"Good Name": "Bob",
"More Hobby": "Play"
};
mydog["Good Name"]; Bob
mydog[' more Hobby ']; Play

Tip: If there are spaces in the attribute name, you must enclose the attribute name in single or double quotation marks.

javascript--Object

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