Minify Javascript: Pros and Cons of Minifying Javascript Code
When creating websites, developers are overly concerned with making sure their code is clean and efficient. After all, bulky code can lead to slow websites. Google and other search engines don’t have eyes like we do and rely on spiders to crawl websites to better understand elements, such as images, tables, copy, and so much more.
When these spiders encounter bulky code, it can take a long time for them to render these elements. This will affect a website’s loading speed, irritate internet users, and elicit a harsh penalty from Google.
As a software developer, what can you do to avoid all of these outcomes? The obvious solution is minifying Javascript code. With Javascript being ubiquitous on nearly every website, there are clearly advantages to this strategy.
But, there are also some disadvantages as well. Below, you’ll learn all about the pros and cons of minifying Javascript code.
What is Minification in Javascript?
Minification, also known as minimization, is a very simple website development concept. It involves removing unnecessary characters of Javascript source code without impacting its usefulness and functionality.
Think of minification as refining Javascript code. By removing extraneous semicolons, comments, whitespace, along with using shorter variable functions and names, developers can create a more compact file size.
To help you understand the concept, below is a block of code before minification. It’s presently only eight lines of source code:
After the source code has been minimized, here is what it now looks like:
As you can see, the code now has one line. Here are all of the changes that have been made:
These changes may seem minute, but they can significantly impact the efficiency of your Javascript source code. Overall, minification can lead to faster page load times, which can improve website performance, making both search engines and visitors content.
How is Minification Different from Other Tactics?
Experienced developers are aware that there are other refinement techniques to improve the efficiency of Javascript source code. These are obfuscation, compression, encryption, and uglification.
Minification differs from all of these, mainly because:
Why Don’t Developers Create Minimized Cost At First?
As you have already learned, minification delivers compact Javascript files. This can improve a website’s overall performance. With that said, how come developers don’t already write minified code?
The answer is simple. Javascript is written by and for humans. Developers need to use comments, formatting, and whitespace to properly debug the code and improve collaboration.
Once the JS code is completed, minified file improve its performance. Because browsers can execute code without needing to interpret it.
What are the Disadvantages of Minification?
Minification isn’t a perfect process. In fact, minification can ruin complicated scripts due to site-dependent variables, such as server environment, plugins, and themes. For this reason, minification must be performed in convergence with other performance enhancing methods.
By itself, minification won’t provide significant benefits for developers. It can also introduce critical errors that are difficult to debug, since all variables and comments have been removed.
Minification may be an important process for developers, but if you’re managing a massive development project, it’ll be worth it to consult with your team before deciding to minimize your Javascript files.
This way, you can make an informed decision that will best affect your website development project.
Javascript Minification: Pros and Cons
Overall, minified code is an effective way to enhance a website property. This can improve the SEO value of a website, yet it can also reduce the accuracy of debugging sessions.
Below, you’ll find a complete list of pros and cons to make the right decision for your team:
Pros:
Cons:
All in all, minification is a beneficial strategy that can improve the performance of your website. You should be mindful of how it can alter the collaboration between key members of your team.
Need Help With Website Development Services?
There is a lot that goes on in any website development project. If your team doesn’t have the staff and resources to spearhead a successful project, we can help. At Dev.co, we specialize in delivering top-notch website and software development services.
Contact us today to speak to a member of our team for more information.
