process.nextTick(function() { console.log('3'); }) new Promise(function(resolve) { console.log('4'); resolve(); }).then(function() { console.log('5') }) }) process
constintersection= (a, ...arr) => [...newSet(a)].filter((v) =>arr.every((b) =>b.includes(v))) intersection([1,2,3,4], [2,3,4,7,8], [1,3,4,9])// [3, 4] 26、查找最大值索引 当需要查找数组中最大值的索引时。 constindexOfMax =...
constall=(arr,fn=Boolean)=>arr.every(fn);all([4,2,3],x=>x>1);// trueall([1,2,3]);// true 2. `allEqual`:检查数组各项相等 代码语言:javascript 复制 constallEqual=arr=>arr.every(val=>val===arr[0]);allEqual([1,2,3,4,5,6]);// falseallEqual([1,1,1,1]);// true ...
beforeEach(function() { console.log('before every test in every file'); }); # Delayed Root Suite If you need to perform asynchronous operations before any of your suites are run, you may delay the root suite. Run mocha with the --delay flag. This will attach a special callback funct...
Automatically chooses the right units (seconds, minutes, etc) to format a time interval. Examples: just now 45s 5m 15 minutes ago 3 hours ago in 2 months in 5 years … For React users, there's aReact version—See Demo This is a readme for version2.x. For older versions,see version...
const all = (arr, fn = Boolean) => arr.every(fn); all([4, 2, 3], x => x > 1); // true all([1, 2, 3]); // true 1. 2. 3. 4. 2. allEqual:检查数组各项相等 const allEqual = arr => arr.every(val => val === arr[0]); ...
👏 Doing It Right Example: A test name that constitutes 3 parts //1. unit under test describe('Products Service', function() { describe('Add new product', function() { //2. scenario and 3. expectation it('When no price is specified, then the product status is pending approval', (...
Whenever a function is called, a new execution context is created and placed at the top of the stack. Once the function completes, its execution context is removed from the stack, and control returns to the previous context. This helps manage synchronous code execution, as each function call ...
Create a Bucket store instance. options: accessKeyId {String} access key you create on aliyun console website accessKeySecret {String} access secret you create [stsToken] {String} used by temporary authorization, detail see [refreshSTSToken] {Function} used by auto set stsToken、accessKeyId、ac...
RunFetch()); } }); async function longRunFetch(request) { await new Promise(resolve => setTimeout(resolve, 75000)); return new Response('Fetch completed'); } When this code is executed on an iPad and a request is made to test.html, the service worker stops after about 70 seconds....