jQuery is one of the most accepted JavaScript library that possesses an enormous collection of plugins which makes it even more powerful. On the other hand, there is a good deal of additional codes or modules, from simple alert functions to multifaceted galleries or form validation methods, that are hard-coded inside websites & not convinced to plugins.
Of course, not each code must become a plugin that would be worthless. However converting the ones to be re-utilized will save loads of improvement time & if shared with the community, will make the code itself better.
