Installation configuration
(1) We can go to its release page ( click to jump ) to download babel.js or babel.min.js and reference it on the page.
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(2) You can also directly quote the address of the online version
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test case
(1) Here we still use the two new features of ES6 let and const as an example. Note: Although our ES6 script is also placed in the script tag, it must be marked with type="text/babel"
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(2) Visit the page and you can see that the ES6 code has been automatically converted to ES5.
