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During my internship. One day I was working on building some dropdown filters for our company's product. Initially, I thought yeah it's not too big a deal. I can simply store one state and render the list on setting the state as true. So initial phas...
1.) _isMounted I recently found out about this when one of my colleague used this in his code and then I found out that in order to check whether our React component is mounted or not we can use this._isMounted in our lifecycle methods and it will re...
Understanding the difference between let, var char and const in JavaScript Let us begin with understanding var . It is the oldest way to declare variables in JavaScript Scope of var: var variables are globally as well as function/locally scoped .It m...