Help Determining Result of Function (true/false)

[DamienRoche]

Hi Guys. I'm hoping someone here knows how to do this.

I have a function, let's say:

function dosomert()
{
doing some stuff;
return valid;
}
 

Now, as you can see, if all is run then it returns valid. But how do I use an if statement to find out what this particular function has returned?

Like:

function checkvalid(){
if (function dosomert.returned='valid'){
do something else;}
}
 

Any ideas?

Thanks.

[Atli]

Hi.

Consider this:

// Create a function to compare something
function compareThings(thing1, thing2) {
  if(thing1 == thing2) {
    return true;
  }
  else {
    return false;
  }
}
 
// Check the thing and print results
var result = compareThings(1, 2);
 
if(result == true) {
  document.write("They match!");
}
else {
  document.write("They don't match!");
}
 

Is this what you are talking about?

[DamienRoche]

Hi.

Consider this:

// Create a function to compare something
function compareThings(thing1, thing2) {
  if(thing1 == thing2) {
    return true;
  }
  else {
    return false;
  }
}
 
// Check the thing and print results
var result = compareThings(1, 2);
 
if(result == true) {
  document.write("They match!");
}
else {
  document.write("They don't match!");
}
 

Is this what you are talking about?

OMG, that is exactly what I was talking about. My mistake was not putting the result of the function in a variable. That did the trick.

Thank you so much for your time!

[Atli]

OMG, that is exactly what I was talking about. My mistake was not putting the result of the function in a variable. That did the trick.

Thank you so much for your time!

Actually, putting it in a variable isn't really needed either. Although, if you plan on using the returned value more than once, it's best to put it into a variable.

You could just do:

if( compareThings(1, 2) ) {
  document.write("Match!");
} else {
  document.write("No match");
}
 

The compiler will basically replace the function call with the value it returns.