在JS函数声明的末尾，添加分号，为什么jshint提示错误

Question

When I declared a js function, and added a semicolon at the end, which is: function foo(){};

Then jshint prompted unnecessary semicolon . Why?

Answer 1

A function (or class) declaration is a complete statement; it should not have a semicolon.

You only need a semicolon for regular executable statements (including const x = function() { ... }; ).

Answer 2

there are 2 types of function writting

• function declaration (; not allowed)
• function expression (; allowed)

see the below example

function _functionName() {

};  // this is not required



var _functionName = function() {

}; //this is okey