how is it convenient to define a slice, if you want to determine whether the key is in the slice? The code is as follows: func main () { urls := []string{ "https: www.aaa.com", "https: www.bbb.com", "https: www...
function ArrayOf(){ return [].slice.call(arguments); } this function implements the conversion of arguments to an array. but I have a question: isn t this call () method the first parameter that points to the this object? Why is it that in this e...