function add(x,y) { return x+y; } add(1,1) // 2 1. 2. 3. 4. 5. 函数体内部的return语句,表示返回。JavaScript引擎遇到return语句,就直接返回return后面的那个表达式的值,后面即使还有语句,也不会得到执行。也就是说,return语句所带的那个表达式,就是函数的返回值。return语句不是必需的,如果没有的...
创建动态函数的基本格式:var 变量名 = new Function("参数1","参数2","参数n","执行语句"); 看下面的一段代码: varsquare =newFunction("x","y","var sum ; sum = x+y;return sum;"); alert("square(2,3)的结果是:"+square(2,3));//square(2,3)的结果是:5 square是动态创建的函数,...
returnx * y; } // ES6 constx = (x, y) => x * y; Try it Yourself » Arrow functions do not have their ownthis. They are not well suited for definingobject methods. Arrow functions are not hoisted. They must be definedbeforethey are used. ...
const add = new Function('x', 'y', 'return x + y')//等同于function add(x, y) {return x + y}复制代码 Function构造函数可以不使用new命令,返回结果完全一样。 函数的返回值 return return只能出现在函数体内。 一个函数中可以有多个return语句。 return后没有任何返回值,(返回值为undefined)代表直...
1 function add(x,y){ 2 return x+y; 3 } 4 var sum = add(3,4); 5 console.log(sum)//7 1. 2. 3. 4. 5. 使用函数调用模式调用函数时,非严格模式下,this被绑定到全局对象;在严格模式下,this是undefined function add(x,y){ console.log(this);//window ...
function addSquares(x : double, y : double) : double { return(x*x + y*y); } // Now call the function. var z : double = addSquares(3.,4.); print(z); // Call the method. var derivedForm : CForm = new CForm; print(derivedForm.blank()); // Call the inherited method. ...
functionmyFunction(x, y =10) { returnx + y; } myFunction(5); Try it Yourself » Function Rest Parameter The rest parameter (...) allows a function to treat an indefinite number of arguments as an array: Example functionsum(...args) { ...
1functionadd(x,y){2returnx+y;3}4varsum = add(3,4);5console.log(sum)//7 使用函数调用模式调用函数时,非严格模式下,this被绑定到全局对象;在严格模式下,this是undefined functionadd(x,y){ console.log(this);//window} add();//window ...
y = 0.6495 a = 1.3333 Multiple Functions in a Function File Define two functions in a file named stat2.m, where the first function calls the second. function [m,s] = stat2(x) n = length(x); m = avg(x,n); s = sqrt(sum((x-m).^2/n)); end function m = avg(x,n) m...
For example: 'function (x, y) { return x + y; }'. Parameters: script - the script value to set. Returns: the JavaScriptFunctionRetrieveDefaultDefinitionParameters object itself.withUdfType public JavaScriptFunctionRetrieveDefaultDefinitionParameters withUdfType(UdfType ...