event loop

In this episode of Syntax, Wes and Scott ask each other hiring questions asked of JavaScript developers in job interviews.

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Show Notes

• JavaScript Interview Questions
• 00:13 Let’s get STUMP’d
• 01:08 Cleaning out the garage
• 05:05 What are 4 methods available on weakmap?
• 07:07 How do you make an object iterable in JavaScript?
• 09:29 How do you make the first letter of a string into uppercase?
• 10:26 What is the typeof operator?
• 11:53 What are classes in ES6?
• 13:21 How do you enumerate key and value pairs of an object?
• 15:44 Kontent by Kentico
• 17:08 What is an event queue?
• 21:05 Why do you need JSON?
• 24:49 Why do you need a promise?
• 25:45 Explain the range overflow property
• 28:21 How do you return all matching strings against a matching expression?
• 30:14 Sponsor: LogRocket
• 30:51 What is a thunk function?
• 33:46 Can you redeclare let or const variables?
• 34:17 What are enhanced object literals?
• 35:56 What is the difference between call, apply, and bind?
• 38:52 Sponsor: Freshbooks
• 39:57 What are benefits of modules and why would you need them?
• 43:50 ××× SIIIIICK ××× PIIIICKS ×××
• 48:47 Shameless Plugs

××× SIIIIICK ××× PIIIICKS ×××

• Scott: Who ARTed Podcast
• Wes: Patio furniture

Shameless Plugs

• Scott: LevelUp Tutorials
• Wes: Wes Bos Tutorials

Tweet us your tasty treats

• Scott’s Instagram
• LevelUpTutorials Instagram
• Wes’ Instagram
• Wes’ Twitter
• Wes’ Facebook
• Scott’s Twitter
• Make sure to include @SyntaxFM in your tweets

In this episode of Syntax, Scott and Wes are back with another edition of Stump’d! where they try to stump each other with interview questions.

Freshbooks - Sponsor

Get a 30 day free trial of Freshbooks at freshbooks.com/syntax and put SYNTAX in the “How did you hear about us?” section.

LogRocket - Sponsor

LogRocket lets you replay what users do on your site, helping you reproduce bugs and fix issues faster. It’s an exception tracker, a session re-player and a performance monitor. Get 14 days free at logrocket.com/syntax.

Auth0 - Sponsor

Auth0 is the easiest way for developers to add authentication and secure their applications. They provide features like user management, multi-factor authentication, and you can even enable users to login with device biometrics with something like their fingerprint. Not to mention, Auth0 has SDKs for your favorite frameworks like React, Next.js, and Node/Express. Make sure to sign up for a free account and give Auth0 a try with the link below. https://a0.to/syntax

Show Notes

03:10 - What is STUMP’D?

04:27 - What is a first class function?

06:27 - What is the purpose of using object is method?

09:31 - What is the purpose of Error object?

11:00 - What are the advantages of minification?

12:37 - How do you declare namespace?

15:38 - What are JS labels?

19:20 - List the methods that are available on a WeakSet?

• What is the difference between a set and a WeakSet?

23:33 - What is the use of preventDefault method?

26:15 - What is a spread opperator?

27:35 - What is the output of below spread operator array?

• [...'John Resig']

30:19 - How do you load CSS and JS files dynamically?

32:00 - What are tasks in event loop?

34:15 - What is a WeakMap?

37:35 - How do get query string values in JavaScript?

40:50 - What is the purpose of some method in arrays?

42:15 - How do you delete a cookie?

Links

• https://30secondsofinterviews.org/
• https://www.interviewbit.com/javascript-interview-questions/
• https://github.com/sudheerj/javascript-interview-questions
• https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/label
• https://es6.io/

××× SIIIIICK ××× PIIIICKS ×××

• Scott: Builderment
• Wes: Lawn Mower Blade Balancer

Shameless Plugs

• Scott: All Courses - Sign up for the year and save 25%!
• Wes: All Courses - Use the coupon code ‘Syntax’ for $10 off!

Tweet us your tasty treats!

• Scott’s Instagram
• LevelUpTutorials Instagram
• Wes’ Instagram
• Wes’ Twitter
• Wes’ Facebook
• Scott’s Twitter
• Make sure to include @SyntaxFM in your tweets