The usage of the rest parameter of javascript

rest parameter of javascript, as follows:

clipboard.png

question:
there is a sentence in the above picture, "the variable of the rest parameter is an array", but add (2Power5) , the parameter passed is not an array, how should it be understood?

Javascript
Dec.06,2021

means .valuse equals [2Magazine 3]
actually you should see deconstruct , otherwise such things can be explained all day. 

function test({a, b, ...rest}){
    console.log(rest);//{ c: 30, d: 40 }
}

test({a: 10, b: 20, c: 30, d: 40});

function f(...[a, b, c]) {
  return a + b + c;
}

f(1, 2, 3)   
function f1(a, b, c) {
    return a + b + c;
}

function f2(...param) {
  return a + b + c;
}

let arr = [1, 2, 3];

f2 (arr); is equivalent to F1 (1,2,3);

if you pass in several parameters instead of an array, it treats the arguments as an array

what is more specific is that you have learned it by yourself. You can't say it clearly in three or two sentences 

reset
function add(...values) {
  console.log(values, typeof values)
  let sum = 0;

  for (var val of values) {
    sum += val;
  }

  return sum;
}

this means that multiple parameters passed will be automatically assembled into an array

by looking at the example, you can see that array refers to values ah.

Previous: {"error": "no such domain"}

Next: Can chrome not open the bilibili live broadcast page correctly?

css mysql arrays josn react html typescript webpack npm sass R objective-c .net sql-server jquery python-3.x angularjs django angular excel regex iphone ajax linux xml pandas vba spring database wordpress string wpf xcode windows bash postgresql oracle multithreading eclipse list firebase algorithm macos forms image scala visual-studio azure bootstrap spring-boot react-native python-2.7 docker performance function winforms matlab powershell apache dataframe api sqlite numpy rest shell selenium flutter dart maven loops qt swing android-studio csv express file class tensorflow sorting codeigniter perl
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b3b9fa-34676.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b3b9fa-34676.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
Need Help?