JS Interview #21: ISO Date
How does the ISO date look in JavaScript? What will be logged to the console? . . . . . . . . . . . . . . ....
JS Interview
Here you can check your JavaScript skills and make sure you鈥檙e ready for the technical interview. Each article has a colorful code snippet, a correct answer and a detailed explanation of the problem.
JS Interview #20: Can you sum arrays with objects in JavaScript?
What鈥檚 the sum of an empty object and an empty array in JS? Is there any length to be found? . . . . . . . . . ....
JS Interview #19: Catching the rejected Promise
Can you catch the Promise rejection in JS? Another unhandled rejection? . . . . . . . . . . . . . . . . In JS, it鈥檚 impossible to catch the unhandled promise rejection using the regular try/catch blocks....
JS Interview #18: What's the sum of two booleans in JavaScript?
Can you add booleans in JS? Is something false here? What will be logged to the screen? . . . . . . . . . . . . ....
JS Interview #17: Sum of two empty arrays in JavaScript
Is the sum of two arrays equal to false? . . . . . . . . . . . . . . . . To analyze this code snippet we need to understand how type conversion works in JS....
JS Interview #16: typeof NaN
What鈥檚 the type of Not a Number? . . . . . . . . . . . . . . . . In JavaScript, NaN means Not a Number. This is a special value that appears whenever JS can鈥檛 make sense of the numerical expression....
JS Interview #15: Getter function
Can we use an arrow function as a getter in JavaScript? What鈥檚 going on and what will be logged to the console? . . . . . . . ....
JS Interview #14: 0.1 + 0.2 = ?
JavaScript math is weird. What鈥檚 the output? True or false? . . . . . . . . . . . . . . . . . . Inside the computer, all numbers are stored in the Binary Number System....
JS Interview #13: Big number
We鈥檙e just logging a number, what can go wrong here? . . . . . . . . . . . . . . . . . . Under the hood, there are no integers in JavaScript....
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....