CODEWITHSUNDEEP
javascriptjqueryarrayscompare
Harnish
Harnish

Reputation: 101

How to compare the values of a particular key from both arrays using inArray in jQuery

I have two array with objects inside in it. I want to compare the values of a particular key from both arrays and do something with that. I have tried using inArray but couldn't succeed. Below is my code.

 function initialize() {
   geometry = 'http://yyyy.cartodb.com/api/v2/sql?q=SELECT name,ST_AsGeojson(the_geom) from msa_usa';
   $.getJSON(geometry,
     function(data) {
       var place_names = [];
       place_names.push({
         name: "Abilene",
         average: 8.65
       });
       for (i = 0; i < place_names.length; i++) {
         if ($.inArray(data.rows[i].name, place_names[i].name) > -1) {
           geom.push((data.rows[i].st_asgeojson));
           average_value.push(place_names[i].average);
         } else
           (console.log("else"));
         //console.log(place_names[i].name);
       }
     })
 }
 console.log(average_value.length);
 console.log(geom.length);

Upvotes: 0

Views: 43

Answers (1)

jfriend00
jfriend00

Reputation: 707406

I'm not sure why you're trying to use $.inArray() at all. It appears you're just trying to compare two properties on two objects (which happen to be in arrays, but you're already indexing to a particular object). If that's the case, then you can just directly compare the two properties:

if (data.rows[i].name === place_names[i].name)

But, in your code, you appear to have just created place_names so it will only have one value in it, not a whole bunch of values in it. So, now that confuses me as to what you're really trying to do here.

For more help, please describe in words what you're really trying to accomplish. Are you just trying to see if one particular .name property is in the data.rows array of objects?

If so, that would be a different piece of code like this:

function findPropInArray(array, propName, value) {
    for (var i = 0; i < array.length; i++) {
        if (array[i][propName] === value) {
            return i;
        }
    }
    return -1;
}

Then, in your code you could use something like this:

if (findPropInArray(data.rows, "name", "Abilene") !== -1) {
    // "Abilene" was as a name property in data.rows
}

Upvotes: 1

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