On the use of the semicolon in JavaScript _javascript skills

Is it necessary to add a semicolon to the beginning of a function in JS? Should I add a semicolon after the JS statement? Should a semicolon be used after JavaScript braces? JS function in the beginning of the exclamation point, semicolon what does it mean?

JS multiple files integrated into a file, compressed code to avoid syntax errors, you can deal with the following

One, JS Front plus semicolon

For example:;(function ($) {... Here's the code ...}) ();
In JavaScript, a semicolon denotes the end of a statement, which, at the beginning, is separated from other methods for compression, indicating that a new statement begins

Second, JS function plus semicolon

For example

Module 1
//preceded by a number
of code var Manager = {
 prop: ',
 method:function () {

 }
}
//Module 2, beginning with an immediate execution function
(function () {
 //Code
}) ()

After compression becomes:} (function there, it will be executed as a functions, so the whole parsing will be wrong

Copy Code code as follows:

var Manager = {prop: ', Method:function () {}} (function () {}) ()

Workaround: Add a semicolon after the manager function

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