Another way to convert js function declaration into function expression

We know that to convert a function declaration expression into a function expression in js, you only need to add operators such as +,-,=,~ or ! or () in front of the function declaration.

In addition, you can also use the void operator for conversion. Here is a simple example:

Js code

void function(){console.log(1)}(); //1

void function(g) {console.log(g)}(this); //window

void is also commonly used in two places in project development:

1. Get the real undefined through void 0; 2. Change a The href attribute of the element is set to javascript:void 0; to prevent page jumps.