Remove duplicates from JSON string

by toubia95

HTML

With Duplicates:<br/>
<textarea class="dirty">[{
    "testada": "ecom",
        "id": "27"
}, {
    "testada": "alorta",
        "id": "27"
}, {
    "testada": "france24",
        "id": "23"
}, {
    "testada": "seloger",
        "id": "23"
    }]</textarea><br/>
<button class="process">Clean</button>
<br/>
Without Duplicates:<br/>
<textarea class="clean"></textarea>

CSS

textarea {
    width:400px;
    height:200px;
}

JavaScript

jQuery(".process").click( function() {
   var dirty = JSON.parse( jQuery(".dirty").val().trim() );
   var cleaned = removeDuplicates(dirty);
    console.log(cleaned);
   jQuery(".clean").val( JSON.stringify(cleaned) );
});

/* 
 * Function from http://stackoverflow.com/questions/21951115/remove-duplicate-values-from-json-data. Answered by Tushar Gupta
 */
function removeDuplicates(json_all) {
    var arr = [],
        collection = [];
    
    $.each(json_all, function (index, value) {
        if ($.inArray(value.halId_s, arr) == -1) {
            arr.push(value.halId_s);
            collection.push(value);
        }
    });
    return collection;
}