You may not know the JavaScript new Function of method

Most of us have used JavaScript, and the popularity of various JavaScript frameworks in recent years has made it more magical and easier. Anonymous function? I don't know what it is but it looks like what I wrote."
You may not know that you can pass new Function() a string as the body of a Function to construct a JavaScript Function. It's not often used in programming, but it should be useful sometimes.

Here is the basic use of new Function:

//The last argument is the body of the function, of type string.  
//The preceding arguments are the parameters (name)& NBSP; of the function to be constructed;
var myFunction = new Function('users', 'salary', 'return users * salary');