JS Interview #31: Big or small
What鈥檚 the output? . . . . . . . . . . . . . . . . . . So, there鈥檚 an if statement and it鈥檚 condition Math.max() > 0 is all we need to analyze....
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 #30: Reject inside resolve
What will be logged to the console? Will the finally block be executed? . . . . . . . . . . . . . . . . ....
JS Interview #29: Slice and dice
What鈥檚 happened to arr? . . . . . . . . . . . . . . . . . Array.slice in JavaScript returns the shallow copy of the array....
JS Interview #28: Resolve and reject at the same time
Can you resolve and reject the JS Promise at the same time? What will be printed to the console? . . . . . . . . . . ....
JS Interview #27: Handling errors in JavaScript Promise chains
Are there any differences between f1 and f2? . . . . . . . . . . . . . . . . . There are two ways of providing error handlers to the JavaScript Promises....
JS Interview #26: Are these dates equal?
Equal or not? . . . . . . . . . . . . . . . . . In the first two lines we create new Date objects....
JS Interview #25: Immediate Promise.resolve
How fast is Promise.resolve() in JavaScript? Which of the messages will be logged first? . . . . . . . . . . . . . . . ....
JS Interview #24: Adding properties to strings in JavaScript
Can you add a custom field to a regular JS string? What鈥檚 the output? . . . . . . . . . . . . . . . ....
JS Interview #23: Array.splice
How many times can you splice the array in JavaScript? . . . . . . . . . . . . . . . . Let鈥檚 start with the definition of splice....
JS Interview #22: How `toString` works in JavaScript?
Let鈥檚 try to apply a generic toString function to a regular JavaScript array. What鈥檚 the output? . . . . . . . . . . . . . ....