As a result, the ineffectiveness of these codes can render your site useless because of slow speed and loading times. According to Unbounce, its survey found that 70% of consumers say page speed impacts their online purchase decision.
1. Illustrate the Execute Content
While testing in every variable isn’t possible, you still need more than one environment to perform testing.
Establishing various well-defined environments will be enough to help you see how well the code works.
2. Enhance Performance with Caching
Developers utilize scripts to access specific objects. You can significantly improve performance using a variable of that object or storing a repeated access item within the variable.
4. Avoid Using Too Much Memory
You never know how much memory a device requires to run an application, so consider limiting your memory use to what you find necessary.
5. Avoid Using Global Variables
Try to avoid or minimize the use of global variables. Other scripts can easily overwrite global variables, leading to maintenance problems.
Instead, you can use local variables and wrap the code in closures. Avoiding global variables enhances the script’s lifetime, improving overall performance.
6. Remove Memory Leaks
The main cause for memory leaks is the removal of DOM or (Document Object Model) components. Memory leaks cause the web page to use more memory — eventually taking up all the memory space on a device. In turn, this affects the performance of a web page such as an image slider.
Consider analyzing your site with Chrome DevTools. You can go to the “Performance” tab and record a timeline.
7. Use Code Splitting
Consider using Webpack to split the code for optimization.
About The Author
Eleanor Hecks is the Editor-in-Chief of Designerly Magazine, an online publication dedicated to providing in-depth content from the design and marketing industries. When she's not designing or writing code, you can find her re-reading the Harry Potter series, burning calories at a local Zumba class, or hanging out with her dogs, Bear and Lucy.