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Utkarsh Kumar Singh3,997 Points
What exactly will Developer Tools helps us with?
Practically asking, what will developer tools help us with?
Dev tools help in so many ways. From what styles are applied to your page to what http requests are being made by your site at any point in time.
I use it all the time for debugging purposes. For example I apply some css style to an element in my css file and then launch the page in Chrome to check out what those new styles may look like. But for whatever reason the styles are not being applied. That is when the Dev tools come into play. They will help a lot in figuring why perhaps the style I applied is not being used on my element. You may see in the dev tools that the style is actually being overwritten by another style further down in the style sheet or something like that.
Tray DenneyCourses Plus Student 12,884 Points
Developer tools are primarily used for debugging and optimizing your projects. Here is an awesome Treehouse course that covers most of the Developer tools and their uses: