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POLocal storage Javascript and JSONArray
 

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  1. POLocal storage Javascript and JSONArray
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    <p>I'm trying to storage data locally with JSONArrays and Objects. What the program does is get the value of several sliders i have inserted dynamically (sometimes 1, sometimes 2 sliders and sometimes 3 or 4...). So I get the values and the id of the product to store locally with arrays. <strong>But there's a problem It only saves the first array, the push method doesn't work.</strong></p> <p>Here's the code:</p> <pre><code>function afegir_i_editar_llistacompra(){ //Obtenim els valors dels sliders i els guardem a localhost var id_product = $('body').data('product'); var array_of_bought_colors_new = new Array({'id': id_product}); var array_of_bought_colors_existing = get_product_info(id_product, 'cesta_list'); for (var i = 0; $('#slider-'+i).val() != null ; i++) { array_of_bought_colors_new.push({'color':$('#slider-'+i).attr('name'),'value': $('#slider-'+i).val()}); }; if(array_of_bought_colors_existing != null){ for (var i = array_of_bought_colors_existing.length - 1; i &gt;= 1; i--) { if(array_of_bought_colors_existing[i].value != array_of_bought_colors_new[i].value) array_of_bought_colors_existing[i].value = array_of_bought_colors_new[i].value; }; }else if( array_of_bought_colors_new.length &gt; 1 &amp;&amp; $('body').data('cesta_list') != null) { $('body').data('cesta_list', $('body').data('cesta_list').push(array_of_bought_colors_new)); }else{ $('body').data('cesta_list', array_of_bought_colors_new); } } </code></pre> <p>What I'm saving:</p> <pre><code>[{id:1},/*First slider --&gt;*/{'color':'blue','value':2},/*Second slider --&gt;*/{'color':'blue','value':32}] </code></pre> <p>Hope you understand!</p>
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    1. PTQuestion
    1. USJoe Frambach
    1. USMarc Ortiz
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    1. COThe `.push` method works, you're probably just not calling it as often as you think. Figure out where your code goes wrong.
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      1. POLocal storage Javascript and JSONArray
      1. USHalcyon
    2. CONITPICK: Doing `$('#slider-'+i)` over and over again is bad practice and makes you code so much slower. Store it in a variable and reuse it!
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      1. POLocal storage Javascript and JSONArray
      1. USepascarello
    3. COThe array gets serialized when "saving" it in localStorage
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      1. POLocal storage Javascript and JSONArray
      1. USMoritz Roessler
 

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