functiongetMultipleValues() {return[1,'two',true]; }const[value1, value2, value3] =getMultipleValues(); 使用对象: 当返回的值具有某种结构或意义时,可以使用对象来返回它们。这样,每个值都可以有一个描述性的键。 functiongetPerson() {return{name:'Alice',age:30,isStudent:false}; }const{ name,...
在JavaScript中,return语句通常用于从函数中返回一个值。然而,有时我们需要从一个函数中返回多个值。有几种方法可以实现这一点: 1. 使用数组 你可以将多个值放入一个数组中,然后返回这个数组。 代码语言:txt 复制 function getMultipleValues() { let value1 = 10; let value2 = "Hello"; return [value1, ...
int> f() // this function returns multiple values { int x = 5; return std::make_tuple(x, 7); // return {x,7}; in C++17 } int main() { // heterogeneous tuple construction int n = 1; auto t = std::make_tuple(10, "Test", 3.14, std::ref(n), n); n = 7; std::cou...
function getData() { var names=new Array("oec2003","oec2004"); return names; } function getNames() { var names=getData(); alert(getData()[0]); //返回oec2003 } 2 将数据封装到Json中返回,如下: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 JS函数...
function getMultipleValues() { return ['Hello', 'World']; } let [val1, val2] = getMultipleValues(); console.log(val1, val2); // 输出: Hello World 3. 使用回调函数 在某些情况下,你可以使用回调函数来处理多个返回值。 代码语言:txt 复制 function getMultipleValues(callback) { let value1...
// arrObj 需要遍历的数组// item 遍历出的每一个元素// index 元素对应的下标// self 数组本身// 有返回值// newArr 新返回的数组// 数组元素个数不变,但是按照一定的条件转换arrObj.map(function(item,index,self){returnitem*2;});letarr=[1,2,3,4];letnewArr=arr.map(item=>{returnitem*2;...
Ultimately, a mixin is a parameterized ruleset that can have multiple matches, and returns multiple values, and a function name can only have one match (per scope) and can only return one value. I think@battlesnakehad the simplest and most straightforward syntax proposal: ...
wx.getLocation({ type: 'wgs84', // It defaults to the GPS coordinates of wgs84. To return the Mars Coordinates that can be directly used by openLocation, input 'gcj02'. success: function (res) { var latitude = res.latitude; // The latitude, which is a floating number ranging from ...
You can minify more than one JavaScript file at a time by using an object for the first argument where the keys are file names and the values are source code: var code = { "file1.js": "function add(first, second) { return first + second; }", "file2.js": "console.log(add(1 ...
The library exports a single constructor function,Decimal, which expects a single argument that is a number, string or Decimal instance. x =newDecimal(123.4567) y =newDecimal('123456.7e-3') z =newDecimal(x) x.equals(y) && y.equals(z) && x.equals(z)// true ...