ByteGrad
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3万 回視聴 ・ 1151いいね ・ 2023/08/07
👉 NEW React & Next.js Course: bytegrad.com/courses/professional-react-nextjs
Hi, I'm Wesley. I'm a brand ambassador for Kinde (paid sponsorship).
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⏱️ Timestamps:
0:00 Old [ ] syntax
0:11 NEW at() method
0:38 Strings (charAt ❌)
1:01 Array methods
1:14 Out of bounds
1:21 Crucial: Browser support
1:58 Transpiling (Babel)
2:37 Polyfilling (core-js)
4:53 'this' keyword
6:12 Backwards (-1)
7:08 IMPORTANT: Transpiling vs Polyfilling
7:22 Next.js
8:50 What to use?
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