encountered an interesting problem with the arrow function:
fun2()
constvar
after this result becomes normal, I change to const, and everything is normal. There is only a problem with the first declaration for const. Do not know what the situation, ask God to explain, thank you!
there is no problem that the browser is not refreshed, using the latest version of Chrome browser
this disappeared when I turned const into a var declaration.
because var becomes window.name
window .
has a problem only the first time it is declared for const.
you print window.name , or turn off tab , and you find it is null again. Refresh is useless because the browser ( chrome ) will not change to window just because you refresh it.
const | | let does not mount declared to window
debugger is the
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