This post includes a list of questions I was asked when interviewing for front end engineering positions last year.
Front End Engineer Interview Questions
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Common JavaScript Array Methods
Common JavaScript array methods, what they return, and whether or not they modify the original array.
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Page Preloader with CSS and JavaScript
There are many advantages of adding a preloader to your website. Not only can this produce a nice visual effect, it can, more importantly, allow time for images and other assets to load.
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CSS Overlay: How to Create a Simple CSS Overlay
In this post, I’ll show you how to create a simple CSS overlay.
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Rails: Devise Redirects (and how to Customize Devise)
It makes sense when a user creates an account, especially when an email confirmation is required, that the user is redirected to a welcome page letting them know they need to check their email to confirm registration. Or, if a user logs in, you probably want to redirect them to a page other than the root URL.
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Rails: Rename a Database/Table Column
There are a variety of reasons you may want or need to rename a database or table column in your Rails application. Accomplishing this is quite simple.
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Rails: Uploading Photos via Amazon S3 and Paperclip
There are many ways to upload photos to a Rails application, and quite a few resources on the web. This is what worked for me.
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:remote => true in Rails Forms
Providing a seamless user experiences often means removing the need to refresh a page when adding or removing content. This can be accomplished by working with AJAX within your Rails application.
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Precompiling Handlebars Templates
If you think of an individual tweet as a Handlebars template, you can understand why it would be expensive to compile a template each time a tweet is rendered. Precompiling templates saves time on the client side by reducing your application’s runtime.
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Pausing a JavaScript Loop
A traditional JavaScript loop iterates over an array almost instantaneously. What happens if you want to pause each iteration of the loop? This sounds easy enough, but you’ll have to address JavaScript’s scoping issues.
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