🧒 Explain like I'm 5
Imagine you're building with LEGOs, but your friend has an older set. Transpiling is like rewriting your instructions in their language, while polyfilling is like giving them the special bricks they're missing. Babel, core-js, and browserslist work together to make sure your code runs on everyone's LEGO set, no matter how old.
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Senior-level deep dive: internals, pitfalls, and a self-interview ladder.
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