The new Function () method of JavaScript that you may not know

Most of us have used JavaScript. In recent years, JavaScript has become more magical and easy with the popularity of various JavaScript frameworks. "Anonymous (Anonymous) function? I don't know what it is, but it looks similar to what I wrote ."
You may not know that you can pass a new Function () string as the Function body to construct a JavaScript Function. Programming is not often used, but sometimes it should be very useful.

The basic usage of new Function is as follows:
Copy codeThe Code is as follows:
// The last parameter is the function body, which is of the string type;
// The preceding parameters are the parameters (names) of the constructed functions)
Var myFunction = new Function ('users', 'salary ', 'Return users * salary ');

Very simple, right?

Q: When is this method suitable, instead of using the traditional function declaration function myFnName () and/or anonymous function definition? Andrea Giammarchi believes that the most suitable scenario for using this function definition method is in the global environment of NodeJS and browsers:
Copy codeThe Code is as follows:
(Function (win ){


// Perform some operations in the global environment


}) (Function ('Return this ')());
If you have used the new Function mode, please leave a message and discuss it!