// program to check if the number is even or odd// take input from the userconstnumber = prompt("Enter a number: ");//check if the number is evenif(number %2==0) {console.log("The number is even."); }// if the
7.编写一个 JavaScript 程序来检查一个数字是否是偶数。 functionis_even_recursion(number){if(number < 0){ number=Math.abs(number); }if(number === 0){returntrue; }if(number === 1){returnfalse; }else{ number= number -2;returnis_even_recursion(number) } } console.log(is_even_recursion...
Returns true if the number is even, false if the number is odd.Sample Solution:JavaScript Code:// Define a function 'isEven' that checks if a number 'num' is even const isEven = num => num % 2 === 0; // Test cases to check if numbers are even console.log(isEven(3)); // fa...
| 该运算符与&的区别在于,若任意一个操作数在相应位为1,则结果为1。 // The binary representation of 1 is: 00000000 00000000 00000000 00000001// The binary representation of 3 is: 00000000 00000000 00000000 00000011// ---// The binary representation ...
number:数字 string:字符串 Boolean:布尔值 undefined:未定义 true:真 false:假 null:空 NaN:非数字 infinity:无穷大 MAX_VALUE:数字最大值 MIN_VALUE:数字最小值 isNaN:是否是非数字 length:长度 typeof:检测变量/或者是数据类型 toString:转换为字符串 ...
return (num %2==0)?"even" : "odd"} console.log(checkNumber(50)) // even 匿名函数表达式 函数声明和函数表达式最关键的区别就在于函数表达式无提升功能。若在函数表达式中尝试与提升函数声明相同的项目，则会出现报错。myName()// ReferenceError: myName is not defined let myName =function () { ...
在上面的示例中,仅在现有设置对象被追踪时才会被更新。这是因为在不追踪的情况下,我们可能会使用错误的环境发送消息。 备注:目前,Firefox 完全实现了现有领域追踪,Chrome 和 Safari 仅部分实现。 规范 Specification ECMAScript® 2026 Language Specification #sec-promise...
// Function to find the maximum even number in an arrayconstmax_even=(arra)=>{// Sort the array in descending orderarra.sort((x,y)=>y-x);// Loop through the arrayfor(leti=0;i<arra.length;i++){// Check if the current number is evenif(arra[i]%2==0)returnarra[i];// If ...
If a number is supplied, delay is applied to both hide/show Object structure is: delay: { "show": 500, "hide": 100 } html boolean false Insert HTML into the popover. If false, jQuery's text method will be used to insert content into the DOM. Use text if you're worried about XSS...
If a number is supplied, delay is applied to both hide/show Object structure is: delay: { show: 500, hide: 100 } container string | false false Appends the tooltip to a specific element container: 'body' 注意! 可以针对单个工具提示指定单独的data属性。 标记 hover over me 方法 $().tool...