How do i compare objects using # sign in javascript

Question

I m using a function hitTest(a,b); i give 2 objects to it. The objects correspond to some div elements with IDs on my webpage.

where the function is called:

if (hitTest($('#drawer'),$('#hit'+i)))

 {
  //do something...

}

This is the function itself

function hitTest(a, b) {
    if( $(b) == $('#hit5')   ){
        console.log("hit 5");
    }
    else if( $(b) == $('#hit4')   ){
        console.log("hit 4");
    }

    else if( $(b) == $('#hit6')   ){
        console.log("hit 6");
    }

The problem is that none of the if clauses work! How do I compare 2 objects, or their types?

score 2 · Answer 1 · answered Jan 20 '16 at 08:30

2

if( $(b).is($('#hit5'))   ){
        console.log("hit 5");
    }

in jquery we have .is method , I think it will helps you

answered Jan 20 '16 at 08:30

saikumar

1,041
6
10

.is comes from jquery? so i have to have jquery plugged in my code to use ".is" ? – ERJAN Jan 20 '16 at 08:31
yes , you can use .is, because you are using jquery plugin – saikumar Jan 20 '16 at 08:31
You are already using jquery in your code snippet as it looks like. – Manish Jangir Jan 20 '16 at 08:31

score 1 · Accepted Answer · edited May 23 '17 at 10:28

Try the following one:

function hitTest(a, b) {
    if( $(b)[0] === $('#hit5')[0]   ){
        console.log("hit 5");
    }
    else if( $(b)[0] === $('#hit4')[0]   ){
        console.log("hit 4");
    }

    else if( $(b)[0] === $('#hit6')[0]   ){
        console.log("hit 6");
    }

The jQuery objects themselves are always separate objects so you have to look at the contents of the actual DOM array inside each jQuery object.

Reference: https://stackoverflow.com/a/7475132/1029506

score 1 · Answer 3 · answered Jan 20 '16 at 08:42

Do you really need to compare elements? Could you just compare the selectors instead?

if (hitTest('#drawer', '#hit'+i))

 {
  //do something...

}



function hitTest(a, b) {
    if( b === '#hit5') {
        console.log("hit 5");
    }
    else if( b === '#hit4') {
        console.log("hit 4");
    }
    else if( b === '#hit6') {
        console.log("hit 6");
    }
}

How do i compare objects using # sign in javascript

3 Answers3