HAR files extracted from HTTP sessions include a lot of useful data that can be utilized for creating custom network and performance audits. Their format though, is not that compatible with analysis tools like Pandas or Tableau out of the box. In this post, I go over a super easy approach towards parsing and transforming them via Objectron in JS.
A guide to Service Workers - pitfalls and best practices
Service workers is one of the most useful features that came to modern browsers. Implementation can be quite tricky though and prone to a lot of issues that could slip into production. I'll be discussing my set of tips and best practices on the subject.
Common pitfalls when working with Javascript Arrays
In most programming languages, an array is a data structure represented by an arrangement of items at equally spaced addresses in computer memory. Unfortunately, that is not the case with Javascript. A Javascript array is simply an object with array like characteristics reflected through certain methods. Apart from being much …
An alternative to Javascript's evil setInterval
If you use Javascript often you might have come across the need for delaying the execution of code within intervals of time with repetition. This is were the native setInterval function comes to use. Despite being useful in many applications, setInterval's shortcomings could blow up your application in some ...
Proxypy: Cross Domain Javascript Requests with Python
When working with web applications you might run into the need to fetch remote content via Ajax where that content isn't necessarily JSON, such as HTML or config file, or even request JSON content from a remote server that doesn't support JSONP. This is when setting up a ...
Javascript URL Object
I've been doing some operations on URLs in Javascript where I needed to extract different parts from a string URL, such as the domain, port, and most importantly the parameter values. I really wished there was some function which takes a string URL and breaks it down into an ...
Serializing a Function's Arguments in Javascript
At many instances when doing Ajax requests in Javascript, a serialize function comes in handy for creating a string in standard URL-encoded notation for the request parameters. The most widely used serialize function is that of jQuery which works great on forms. But what if the request is not based ...
The undefined vs null Pitfall in Javascript
Sometimes I come across JavaScript code with a lot of null checking against properties that are uninitialized, which is really wrong. Many people might think that uninitialized properties get a default value of null, but that is not the case despite having something like foo == null resulting in true, assuming ...
