JavaScript 算法之 判断是否为质数 prime number 素数 质数：只能被1和自己整除且大于1的数。合数：数大于1且因数多余2个（大于1的数质数的补集）。function isPrimeNumber1(n){if(n < 2) return false;if(n === 2) return true; // 最小的质数for(let i = 2; i < n; i++){if(n % i ...
trueE:\math>node isPrimeNum01.js127IsNumber"127"a prime number ?trueE:\math>node isPrimeNum01.js566IsNumber"566"a prime number ?falseE:\math> Please review my code and leave your valuable comments. Also please check whether my logic for checking the prime number is efficient. if(n <=1...
showStars(cnt);functionshowStars(cnt) {for(let i = 1; i <= cnt; i++) { let star= '';for(let j = 1; j <= i; j++) star+= '*'; console.log(star); } } 4.10 Prime Numbers 质数 showPrimes(200);functionshowPrimes(limit) {for(let number = 2; number <= limit; number++)...
JavaScript 预定义全局常量Infinity和NaN分别表示正无穷大和非数字值,并且这些值也作为Number对象的属性可用: 代码语言:javascript 复制 Infinity // A positive number too big to represent Number.POSITIVE_INFINITY // Same value 1/0 // => Infinity Number.MAX_VALUE * 2 // => Infinity; overflow -Infinit...
A number is prime if it has only two distinct divisors: 1 and itself. For example, 3 is a prime number because it has only two distinct divisors: 1 and 3. Return "Prime" if num is prime; otherwise, return "Not Prime". Check Code Share on: Did you find this article helpful?
console.time('TEST')//some random code to be testedconsole.timeEnd('TEST') 风格的Loggin 要获得自定义输出,我们将像下面那样添加%c,然后将实际的CSS作为第二个参数。 代码语言:javascript 代码运行次数:0 运行 AI代码解释 console.log('%c AWESOME','color: indigo; font-size:100px') ...
function showPrimes(n) { nextPrime: for (let i = 2; i < n; i++) { // 检测 i 是否是一个质数(素数) for (let j = 2; j < i; j++) { if (i % j == 0) continue nextPrime; } alert(i); } } 更好的变体,使用一个分解出来的函数 isPrime: function showPrimes(n) { for (...
// 在Repl.it中测试JavaScript代码functionisPrime(number){if(number<=1){returnfalse;}for(vari=2;i<number;i++){if(number%i===0){returnfalse;}}returntrue;}varnumber=17;varisPrimeNumber=isPrime(number);console.log(number+" is prime? "+isPrimeNumber); ...
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Try for free Why Choose DHTMLX JavaScript Gantt Chart? Easy to set up and use Even if you are not a JavaScript expert, starting your work with our HTML5 Gantt control is straightforward. You can quickly initialize it with a few lines of code and equip it with the desired features. ...