课程: Mastering Web Developer Interview Code
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When would you use recursion?
- [Instructor] Recursion is a programming technique that is popular among developers. So it can be a common question during interviews. Let's take a look at what it is, and more importantly, when it is useful. Now recursion sounds a lot fancier and more complicated than it really is, to put it simply, recursion happens anytime a function calls itself. Now that's a dangerous technique for obvious reasons. If you take a look at this example, you'll see that this function called myself, calls itself indefinitely. And this would happen until the computer runs out of memory. So at the very least every recursive function needs something called a base case. That's a statement that exits the function when a condition is met. You can see that in this simple example, we're using this function called countUp, the countUp from one to the number five. We're doing the recursion right here when this function called itself, with the…
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How do you use the data- attribute in HTML?11 分钟 14 秒
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Are you comfortable using jQuery?11 分钟 32 秒
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Describe when you should use the bind() method5 分钟 21 秒
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Do you know how to use the conditional operator?3 分钟 43 秒
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Have you used Ajax to load an external file?8 分钟 25 秒
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Have you used JavaScript templates?7 分钟 3 秒
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How do you manipulate the DOM?11 分钟 7 秒
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How do you search using functional programming?6 分钟 27 秒
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How do you use a constructor to create instances?10 分钟 33 秒
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How do you use arrow functions in ES6?6 分钟 30 秒
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How do you use the Fetch API?7 分钟 22 秒
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How do you render JSON to a DOM element?9 分钟 36 秒
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How does an IIFE work?7 分钟 12 秒
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How does immutability work in JavaScript?4 分钟 12 秒
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How would you use JavaScript reduce()?3 分钟 54 秒
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Quick concepts: Do you have experience linting your code?2 分钟 31 秒
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What are event bubbling and propagation about?11 分钟 42 秒
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What does "use strict" do?3 分钟 28 秒
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What is a callback and how do you use it?8 分钟 51 秒
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What is the relationship between promises and callbacks?9 分钟 57 秒
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What is the virtual DOM?7 分钟 7 秒
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What is variable hoisting and how do you guard against it?8 分钟 43 秒
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What tooling options have you used in the past?7 分钟 11 秒
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When would you use recursion?6 分钟 25 秒
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Can you build a Sass mixin?7 分钟 57 秒
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Do you know how to use CSS variables?10 分钟 38 秒
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Animate an underline on hover in CSS9 分钟 48 秒
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Explain the difference between absolute and relative positioning7 分钟 55 秒
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How comfortable are you with Sass?12 分钟 10 秒
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How do you animate CSS?9 分钟 41 秒
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How do you debug CSS using your browser?10 分钟 47 秒
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How do you use calc() in CSS?9 分钟 56 秒
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How would you use flexbox to control horizontal alignment?7 分钟 21 秒
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In CSS, what's the difference between ems and rems?9 分钟 58 秒
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What's the difference between a pseudo-class and a pseudo-element?6 分钟 16 秒
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Do you know how to use npm?8 分钟 40 秒
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Do you have experience using version control?16 分钟 37 秒
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How does routing work in a modern web application?9 分钟 30 秒
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