Retrieving JSON using Javascript includes, why is there a difference in the time needed for the JS download and the start of JS execution?

During the optimization of my web application, I encountered a challenge with parsing JSON data in large quantities. The data consisted of up to 1000 objects with hundreds of attributes each, causing the eval function to take a significant amount of time to process. After researching online and consulting resources like StackOverflow, I discovered a different approach for fetching JSON data from the server called 'Dynamic Javascript include'.

Using Javascript include significantly sped up the JSON parsing process, as affirmed by various blogs (validated through console logs in firebug). However, I noticed a considerable delay between the completion of JavaScript downloading and the execution of the script itself, sometimes resulting in a delay as long as 6 to 7 seconds. Can anyone shed light on why this delay occurs and suggest possible solutions?

javascriptjsoneval

Answer №1

Delving into my own inquiry, further investigation revealed that the issue was isolated to my device. Interestingly, on other devices, the discrepancy in the mentioned process was minimal. This led me to speculate that it could be attributed to the excessive number of Firefox addons I have installed. Pure conjecture at this point. Uncertain about it yet.

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