JS Interview #12: Math.min()
How small is Math.min() in JavaScript? . . . . . . . . . . . . . . . . . . The function Math.min() takes the variable number of arguments and returns the lowest number passed into it....
Top 3 Reasons Why You Should Never Cheat When Learning to Code
There are many reasons why you should never cheat while learning programming. Cheating can lead to frustration, decreased motivation, and even failure. Wasted effort When you cheat, you are not really learning the material....
How to do bit manipulation in JavaScript
Bitwise operations aren鈥檛 very common in JavaScript, but sometimes they鈥檙e indispensable. ...
JS Interview #11: Scope
Variables with the same name in JavaScript? What will be logged to the console? . . . . . . . . . . . . . . . ....
JS Interview #10: null + undefined
What's the difference between `null` and `undefined` in JavaScript? What will be logged to the console? (think well, then click for the answer and explanation) In the first line, we evaluate null === null and the result is true....
JS Interview #9: Promise.reject + try/catch
Let's try to reject the promise inside of the JS `try/catch`. Will we catch the error in the `catch` block? (think well, then click for the answer and explanation) Regular try/catch blocks only catch errors that appear in the synchronous code....
Are you a SOLID developer
SOLID is an acronym for 5 object-oriented design principles formulated by Robert Martin - @unclebobmartin. Following SOLID principles will help you build maintainable and extensible software. ...
How to import and use npm modules
Open source Node modules are very powerful as you can instantly get access to the functionality that you鈥檇 otherwise have to write yourself. Learn how to import the module once you鈥檝e installed it. ...
How to find and install open-source npm packages
Node package manager or npm was first released in 2010. In 2020, it includes around 500k open-source modules to enhance the functionality of your Node.js applications. ...
JS Interview #8: Zero timeout
What if we call `setTimeout` with 0 delay in JavaScript? Which of the messages will be printed first? (think well, then click for the answer and explanation) In JS, `setTimeout(func, delay)` takes a function `func` and delays its execution by `delay` milliseconds....