1. Why did this arr become an array? What exactly happened to this . inside the function parameters?
function sort(...arr) {
console.log(arr);
}
sort(3, 1, 5)
1. Why did this arr become an array? What exactly happened to this . inside the function parameters?
function sort(...arr) {
console.log(arr);
}
sort(3, 1, 5)http://es6.ruanyifeng.com/-sharpdo.
you can understand that arguments, uses your passed parameters as array elements for indefinite parameter functions
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