Please implement the test2 function to meet the following four conditions to pass the test, complete it in the most concise way, and guarantee the code quality module.exports.test2 = (input) = > {} (1) test2 () = 0 (2) test2 (1) () = 1 (3) test2 (1...
topic description In the original , the following related code partially withdraws the early return and delayed execution of the Corialization function, and the in the code only needs to determine the browser type once. My understanding of the code i...
topic description The function asyncify is a function whose output is the same regardless of whether it is called asynchronously or called by Synchronize (in this case, a = 1). The judgment about Synchronize does not quite understand the logical meani...
curry = fn => { let arr = []; judge = (...args)=>{ if(!args[args.length-1]){ return fn(arr); }else{ arr.push(...args); re...
Can you explain what this line of code means? Why can it be written like this? Why should it be written like this? fun log(tag: String) = fun(target: OutputStream) = fun(message: Any?) = target.write("[$tag] $messa...
I see that it is said on the Internet that scp rc and so on. Does the ssh connection established cannot be used? do you need to open the connection again? Thank you. I feel a little troublesome to drive again. ...
Code address ineffective code export default class User extends Component { logout() { console.log(1) const alert = Modal.alert alert( , ??? , [ { text: , onPress: () => console.log( cancel ) }, ...
What is the reason for ? Grammar is sure to be no problem, in this component can be taken normally, ask the boss to explain. ...
when using @ CrossOrigin (origins= "* ") , there is a response header Access-Control-Allow-Origin: * . At this time, the front end setting withCredential will report an error Failed to load http: localhost:8080 test: Response to preflight request ...
Project transformation, there is no interface document at the back end, so you can only look at the interface to write, but the parameters do not know what format to use, whether it is a simple object, FormData, or json, and so on. Can you see it through...