1.生成随机颜色的两种方式 1).生成RandomHexColor constgenerateRandomHexColor =()=>{return`#${Math.floor(Math.random() *0xffffff).toString(16).padStart(6,'0')}`} generateRandomHexColor()// #a8277cgenerateRandomHexColor()// #09c20cgenerateRandomHexCo...
leapYear?'闰年':'平年');// 闰年constleapYear1=timeBox.getLeapYear('2019');console.log('=-=2019年是',leapYear1?'闰年':'平年');// 平年constleapYear2=timeBox.getLeapYear(null);console.log('=-=今年是',leapYear2?'闰年':'平年');// 闰年...
constisPalindrome=(str)=>str.toLowerCase()===str.toLowerCase().split('').reverse().join(''); 三、数字处理 9、如何计算一个数的阶乘 代码语言:javascript 代码运行次数:0 运行 AI代码解释 constgetFactorial=(n)=>(n<=1?1:n*getFactorial(n-1)); 10、如何计算一个斐波那契数列第N项(Fibonacci...
MangoGoing 关注作者注册登录 点击右下角▶️运行按钮进行下载安装组件代码,若需要配置小物件(如: 设置背景图片等),会弹出弹窗,根据提示下一步操作即可,若无任何反应则表示无需配置,接下去点击左上角的Done按钮即可 回到iPhone桌面,长按,添加组件,选择Scriptable应用,勾选刚刚添加的小组件代码,完成显示效果😃 ...
{// 'unused' is the only place where 'priorThing' is referenced,// but 'unused' never gets invokedif(priorThing) {console.log("hi"); } }; theThing = {longStr:newArray(1000000).join('*'),// Create a 1MB objectsomeMethod:function() {console.log(someMessage); } }; };setInterval...
In v3.0.0 or newer, .only() can be used multiple times to define a subset of tests to run: describe('Array', function() { describe('#indexOf()', function() { it.only('should return -1 unless present', function() { // this test will be run }); it.only('should return the...
generate([],0) returnresult } 复制代码 接下来,我们需要生成 1000 注双色球,红球是从 1 - 33 中取组合数,蓝球是从 1 - 16 中依次取数 functiongetDoubleColorBall(count){ // 红球数组:['01', '02' ... '33'] constarrRed =Array.from({length:33}, (_, index) => (index +1).toString...
This function can also be used to generate multiple random values from an array by using theArray.prototype.slice()function. This function returns a shallow copy of a portion of an array into a new array. We can use this function to get the firstnelements of the shuffled array. For examp...
Create an array of numbers from 1 to n with a stepconst range = (n, step = 1) => Array.from({ length: n }, (_, i) => i * step); console.log(range(10, 2)); // [1, 3, 5, 7, 9]Create an array and fill it with a valueconst fill = (len, value) => Array(len...
{//Check if Blob constructor is supportedblobSupported =newBlob(['ä']).size === 2//Check if Blob constructor supports ArrayBufferViews//Fails in Safari 6, so we need to map to ArrayBuffers there.blobSupportsArrayBufferView =newBlob([newUint8Array([1, 2])]).size === 2}catch(e) ...