CertainPerformance

CertainPerformance has asked 3 questions and find answers to 1026 problems.

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CertainPerformance questions

How to avoid accidentally implicitly referring to properties on the global object?
Why are await and async valid variable names?

CertainPerformance answers

JavaScript adding zero for non existing keys in array
ES6 .filter within a .filter
React useState update based on a variables previous value
Quick question about ES6 spread operator on objects
React hooks rendering component before useEffect finishes
JavaScript algorithms: find starting and ending indices of consecutively repeated chars from a string
Bookmarklet to open window to URL, wait for load, close window
Can you destruct an object and have nullish coalescing for potential undefined constants?
What is the null argument to cb in multer?
Adjacent sibling selector element.querySelector("+element") is invalid