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chadwithuhc/sample-tech-screen-questions.md

Created March 15, 2018 20:19
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Sample Tech Screen Questions
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sample-tech-screen-questions.md

CSS

  • What are CSS selectors?
  • What is the specificity of those selectors?
  • What is the difference between .class1.class2 and .class1 .class2 as a selector?
  • How do you center something in CSS?
  • How do floats work?
  • How do you get something to not display using CSS?

JS

  • What are let and const?
  • What is var?
  • How is var different than let?
  • How do you define a global variable?
  • How do you define a global variable inside of a function?
  • What does iffy mean?
  • What's a closure?
  • How does event bubbling work?
  • How do you avoid event bubbling?
  • What is the difference between == and ===?
  • What is the difference between null and undefined?
  • What are the primitive data types?

React

  • What is the one lifecycle hook that is in every class component?
  • Name as many lifecycle hooks as you can?
  • What is the difference between state and props?
  • Can you set state more than once?
  • How does React use the virtual DOM?
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