I do have some knowledge of C, and I could learn more. But unless I change career, I'll always be faster and more effective in JavaScript because I think in it all day, so I'll almost always choose JS over C. I'm not disparaging anyone who uses C, just answering @faaef's question about why people "feel the need" to make everything in JavaScript – because they can, they happen to know JS very well, and because there's automatically a huge potential contributor base.
> could you explain how JS is the most widely used language in the world?
I don't know, but I assumed it's the most widely used because websites :) Also it's the most popular language on GitHub
JS is definitely the wrong language for a number of programming projects. JS lacks a number of features that other languages have... on its own, that doesn't make it a bad language, but it means it's less useful for certain projects.
Like this one. Like the POSIX API that is actually compatible with other applications.
And by that definition of used, C and Java are pretty strong competitors, seeing as every SIM card and Bluray player and so many more run Java... and then there's Linux and its embedded RTOS cousins, etc., etc., that are written in C or C++. I think embedded devices beat out JS pretty well.
I understand people feel the need to solve problems in JS because they're scared or inconvenienced by learning a new programming language.
But why not learn a new language? Having a working knowledge of C won't kill you.
edit: could you explain how JS is the most widely used language in the world?