only('should return -1 unless present', function() { // this test will be run }); it.only('should return the index when present', function() { // this test will also be run }); it('should return -1 if called with a non-Array context', function() { // this test will not...
What I will need to do before asigning the first element in the array: Pic[0] = "images/Pic1.bmp"Is to first check if "images/Pic1.bmp" exists ?x_xhtml 複製 var Pic = new Array() Pic[0] = "images/Pic1.bmp"; Pic[1] = "images/Pic2.bmp"; Pic[2] = "images/Pic3.bmp...
const createDirIfNotExists = dir => (!fs.existsSync(dir) ? fs.mkdirSync(dir) : undefined); createDirIfNotExists('test'); 3.currentURL:返回当前链接url const currentURL = () => window.location.href; currentURL(); // 'https://juejin.im' 4.distance:返回两点间的距离 该代码段通过计算欧几...
是否启用数据污点:" + navigator.taintEnabled() + ""; info += ""; document.getElementById("elInfo").innerHTML = info; return info; //director varappCodeName = navigatorappCodeName; //与浏览器相关的内部代码名 var appMinorVersion = navigatorappMinorVersion; //辅版本号(通常应用于浏览...
If the query returns no results, this pattern isn’t used in the projects that you analyzed. You can use predicate Locatable.getFirstToken() and Locatable.getLastToken() to access the first and last token (if any) belonging to an element with a source location. Comments The class Comment...
const addProduct = (name, price) => { const productNameRegexNoSpace = /^\S*$/; //no white-space allowed if (!productNameRegexNoSpace.test(name)) return false; //this path never reached due to dull input //some logic here return true; }; test("Wrong: When adding new product with...
If object not exists, will throw NoSuchKeyError.example:Get an exists object stream const result = await store.getStream('ossdemo/demo.txt'); result.stream.pipe(fs.createWriteStream('some file.txt')); .delete(name[, options])Delete an object from the bucket....
It takes one parameter: a case-sensitive string with the element’s identifier. It returns an element object, which is referenced to the element if it exists; otherwise, it returns null. The returned element object has a set of methods and properties, including several inherited from the node...
{interfaceElement1: sel}; ie : InterfaceElement ie.name == sel && ie.value == null; // match on the name } then { assert(new Hint("Type 33 in text input "+sel+".")); if(checkSAI({selection: sel, action: "UpdateTextField", input: 33})) { modify(ie, "value", 33); ...
8 9 <!-- Set up a container element for the button --> 10 11 12 paypal.Buttons({ 13 createOrder() { 14 return fetch("/my-server/create-paypal-order", { 15 method: "POST", 16 headers: { 17 "Content-Type": "application/json", 18 }, 19 body: JSON.stringify({ 20 cart...