Introducing querySelector and querySelectorAll

Comparing with getElementById, getElementByName,... querySelector and querySelectorAll are newcomers but soon become popular regarding their conveniences and consistent of using. How to use querySelector and querySelectorAll? With querySelector...

getElementByID and getElementsByTagName in DOM manipulation

DOM manipulation is a skill set that every web developer must know about. With DOM manipulation, we can access the DOM and change the...
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Flutter – The use of Selector in Provider package

When it comes to state management in Flutter, most of the time people prefer to use Provider.  A package that is most...

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