Front-end interview daily 3+1-day 979

• [html] Use canvas to make a star
• [css] How to use css to control the playback status of animation?
• [js] Have you used intersectionObserver? Tell me about your understanding of it
• [Soft Skills] As a leader, how do you evaluate your team?

In "The Analects", Zeng Zi said: "My body is three (I reflect on myself many times a day).
Front-end interview 3+1 questions a day, use interview questions to drive learning, and make a little progress every day!
Let hard work become a habit, let struggle become a kind of enjoyment!
Believe that insists on the power of ! !

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[Recommendation] Welcome to toss the front-end with jsliang, organize the front-end knowledge systematically, and currently toss LeetCode, and plan to get through the two channels of algorithm and data structure. GitHub address

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• Learning is not closed, charging and refueling is only for meet a better self , 365 days without holidays, hand-published interview questions at 5 o'clock every morning yourself, everyone 161cc38b162899).
• I hope everyone in this exaggerated front-end circle, keep calm , insist on spending 20 minutes every day to learn and think.
• In this ever-changing front-end with endless class libraries, it is recommended that you don't wait until you are looking for a job and then frantically questions. It is recommended that 161cc38b162901 learn every day! ( not forget the original intention , html, css, javascript are the cornerstones!)

• Welcome to Issues , encourage PR , thank Star , if you have any good suggestions, you can add me to WeChat to discuss together!

  I hope you learn and think every day, so that you can achieve the purpose of coming here! ! ! (Don't come for anyone, come for yourself!)

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