I have created a function that returns a variable.
function randomZone(){
return x;
}
I want y to equal the function return value such that y=x;
y=randomZone();
I've read that this sets the variable equal to the function instead and that I have to put (); at the end of the function to invoke it first. Which way is correct?
y=randomZone()();
y=(randomZone())();
Also, how would you call it when you are invoking inside of another function? For example:
document.getElementById(randomZone()).classList.add('someClass');
document.getElementById(randomZone()()).classList.add('someClass');
document.getElementById((randomZone())()).classList.add('someClass');
document.getElementById((randomZone())();).classList.add('someClass');
Which way is correct? Wouldn't you also not include the semi-colon because that would terminate the code early?
y=randomZone;
assigns the function itself to the variable y
, now you can call the function by doing y()
y=randomZone();
assigns the return of the function to y
, now y
is equals to x
(the return of the function) when this code is executed by any other script ( function() { y=randomZone(); //code inside these brackets is executed instantly } ());
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.