Interview questions

What are higher Order Functions in JavaScript?

In JavaScript, a higher-order function is a function that takes one or more functions as arguments, or returns a function as its result. Higher-order functions are a powerful tool in JavaScript and are commonly used in functional programming. Here are a few examples of higher-order functions in JavaScript: The map() function is a higher-order function …

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Javascript security vulnerabilities checklist

Tools to check javascript security vulnerabilities 1) npm installIf you are using npm install in your application, make sure you keep all packages updated to the latest versions. 2) Snyk toolYou can signup for Synk tool for free and add repo to check issues.Synk can be integrated with Github repository and it can create pull …

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Validate a palindrome

A palindrome is a word, number, phrase, or other sequence of characters which reads the same backward as forward, such as madam or racecar.  Return True if it”s a palindrome and False if not palindrome