Jquery - Check if objects in array exist

Question

I am adding objects to an array like so:

fontSizeArray.push({element: $(y).prop("tagName").toLowerCase(), orginalSize:$(y).css("font-size"), size:$(y).css("font-size")});

this code inside a loop, what I am trying to do is eliminate the duplicates because some items will have the same tagName and the same font-size

I am trying to use in array, but its not working, the duplicates still remain.

if($.inArray({element: $(y).prop("tagName").toLowerCase(), orginalSize:$(y).css("font-size"), size:$(y).css("font-size")}, fontSizeArray) == -1)
                {
                        fontSizeArray.push({element: $(y).prop("tagName").toLowerCase(), orginalSize:$(y).css("font-size"), size:$(y).css("font-size")});
                }

What am I doing wrong?

Sorry should have been this article stackoverflow.com/questions/19111707/… — Jules
– Jules, Commented Mar 13, 2017 at 1:22
@user979331 did you find useful my answer? if yes please don't forget to mark as correct — Eduardo E.R.
– Eduardo E.R., Commented Mar 13, 2017 at 16:31

Eduardo E.R. · Accepted Answer · 2018-09-12 21:52:43Z

1

To find Object in an Array you can use .grep

searchArray = $.grep(fontSizeArray, function(n) {
    return n.element == $(y).prop("tagName").toLowerCase() && n.orginalSize == $(y).css("font-size") && n.size == $(y).css("font-size");
});

if(searchArray.length == 0){
    console.log("Not find");
}else{
    console.log("find");
}

.grep Finds the elements of an array which satisfy a filter function. The original array is not affected, and return an array.

I use all attributes to find the object, but you can use only tagName to find the element to avoid push duplicates.

You can see it here https://jsfiddle.net/egfg3dmc/3/

edited Sep 12, 2018 at 21:52

answered Mar 13, 2017 at 1:01

Eduardo E.R.

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