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POImprove the performance of Data retrieving in JSON format
 

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  1. POImprove the performance of Data retrieving in JSON format
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    <p>Now We are developing a Hybrid App and here data is accessing from Server side and given data is in JSON format. Its takes more than 10 seconds to load the data from server.</p> <p>Here is its sample code :</p> <pre><code>$(document).ready(function(){ $("#cardetails").tap(function(event,ui){ $.ajax({ url:'http://wwwsampleurl.net/json/jsn_cmp.php?json=1&amp;rcg_mobile=2&amp;lan=en&amp;callback=ajax_eup&amp;pick_up_loc=AGPT01&amp;drop_off_loc=AGPT01&amp;country_des=ES&amp;country_user=AE&amp;currency=EUR&amp;day_drop=Tue&amp;day_pick=Tue&amp;age_driver=30&amp;uid=0&amp;num_days=7&amp;pick_up=2722&amp;drop_off=2722&amp;pick_up_day=13&amp;pick_up_hour=10&amp;pick_up_minute=00&amp;pick_up_mon=08&amp;pick_up_year=2013&amp;drop_off_day=20&amp;drop_off_hour=10&amp;drop_off_minute=00&amp;drop_off_mon=08&amp;drop_off_year=2013', data:'', contentType: "application/json; charset=utf-8", type: "POST", dataType: "json", crossDomain:true, cache: false, async:false, success: function(data, textStatus, jqXHR){ $.each(data, function(index, val) { if(index=='gen'){ alert("gen data - "+val.pick_up_day); } else if(index=='company_date'){//alert('Load cars') for (var i = 0, len = val.length; i &lt; len; i++) { //alert(JSON.stringify(val[i])); // alert(val[i].car_img); $('#carImages').append('&lt;img src="'+val[i].car_img+'" width="70" height="110" alt="'+val[i].car_group+'" title="'+val[i].type+'"/&gt;'); } } }); }, error: function(XMLHttpRequest, textStatus, errorThrown){alert(textStatus +"-"+ errorThrown);} }); }); }); </code></pre> <p>How we can improve the performance?</p>
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    1. USULLAS MOHAN.V
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    1. COYou can try concating the string and appending it after the loop. And if it takes 10 seconds to load from server, you mean including the appending of the results or 10 seconds untill server returns the data?
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      1. USeric.itzhak
    2. COAre you sure it's not an issue with the server response time / database query?
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      1. USScott Bartell
    3. COyou need to see where the actual slowdown is. Is it in your query? In your return to page? How many rows are you returning? Above code doesn't tell us anything useful
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      1. USjmadsen
 

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