How to find object value in array with Jquery?

Question

How can I search in an array to see if the value exists?

var fruitVarietyChecked = $('input[name=fruitVariety]:checked').val();

$.getJSON('getdata.php', {fruitVariety: fruitVarietyChecked}, function(fruittype) {

            var html = '';
            $.each(fruittype, function(index, array) {

                alert( "Key: " + index + ", Value: " + array['fruittype'] );
                //shows array - Key: 0 , Value: special item

                //this is where the problem is
                if ($(array.has("special item"))){

                    $("p").text("special item" + " found at " + index);
                    return false;
                    }

                html = html + '<label><input type="radio" name="fruitType" value="' + array['fruittype'] + '" />' + array['fruittype'] + '</label> ';
            });
            $('#fruittype').html(html);
            });
}

So far I tried .is , .has , .getdata and .inarray, but it's getting me nowhere.

The JSON call returns: [{"fruittype":"special item"},{"fruittype":"blue"},{"fruittype":"red"}]

What does your array look like ?

aziz punjani
– aziz punjani

2011-08-31 19:47:11 +00:00
Commented Aug 31, 2011 at 19:47 — aziz punjani
– aziz punjani, Commented Aug 31, 2011 at 19:47

Chandu · Accepted Answer · 2014-08-01 18:01:18Z

24

I think its a syntax error: Change if ($(array.has("special item"))){ to

if ($.inArray("special item", array) > -1){

EDIT:

If the array has complex objects then you cannot use inArray, instead you can use the jQuery filter to achieve the same, e.g:

    var filtered = $(array).filter(function(){
        return this.fruittype == "special item";
    });
    if(filtered.length > 0){

edited Aug 1, 2014 at 18:01

answered Aug 31, 2011 at 19:47

Chandu

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4 Comments

Jroen Over a year ago

Although the answer is shown twice here, this does not seem to be working.

Chandu Over a year ago

Can you post the array that is being returned by the JSON call?

Jroen Over a year ago

The JSON call returns: [{"fruittype":"special item"},{"fruittype":"blue"},{"fruittype":"red"}]

Chandu Over a year ago

@Jroen: Updated the post please check.

aziz punjani · Accepted Answer · 2011-08-31 19:46:40Z

2

if ( $.inArray(valueToMatch, theArray) > -1 )

answered Aug 31, 2011 at 19:46

aziz punjani

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