Most of the help I get in my IDE for JS are 1 helps with typos , I will notice a weird color and probably underlines if the variable or function is undefined

Most of the help I get in my IDE for JS are 1 helps with typos , I will notice a weird color and probably underlines if the variable or function is undefined so I can fix the issue before it crashes somewhere in the future 2 also helps me when it highlights unused stuff, shows me that a refactor or a merge happened and it needs a closer look 3 we put JSDoc type documentation and colors will look different if say you used a method on an object that does not have such method or member defined I create my personalized color schemes that fit me and my disabilities so I don't care if maybe it does not work for someone else or if soem dude tested on some students and observer some small effect or even worse some designer decide how my stuff should look because he read some blog posts from his guru and now he thinks he is a UX master. I suggest people try a good IDE, tweak things, I always notice bugs in my colleagues code that a good IDE would have prevented them.