About the "+ =" Connector for JavaScript

Today, when I read "JavaScript Dom programming Art", I saw that I was unfamiliar with the + = Connector ( small white one, please do not ridicule)

"+ =" connector, which can be considered as "addition and assignment" (or "stitching and assigning")

For example:

The output is:

In fact, one of the processes of experience is:

var day = new Date ();

var message = "The time I wrote the blog is";

message = Message+day;

Console.log (message);

This process is a concatenation after the assignment of the process, the message and day are stitched into a new string, re-assigned to the message;

We're looking at a second example:

This is a process of adding and assigning values first.

var a = 10;

var B = 20;

A = A+b;

Console.log (a);

Summary: + = connectors, let's take him as a process to complete the "addition and assignment" or "stitching and assigning"!

About the "+ =" Connector for JavaScript