getAll(name): 返回所有名称为 name 的查询参数的值组成的数组,如果不存在,则返回空数组。 set(name, value): 设置名称为 name 的查询参数的值为 value。如果已经存在同名参数,将会覆盖原来的值。 append(name, value): 添加名称为 name 的查询参数,并设置其值为 value。如果已经存在同名参数,会添加一个新的...
export const loalStorageSet = (key, value) => { if (!key) return; if (typeof value !== 'string') { value = JSON.stringify(value); } window.localStorage.setItem(key, value); }; 复制代码 (2)获取localStorage 代码语言:javascript 代码运行次数:0 运行 AI代码解释 export const loalStorage...
Array.from():该方法用于将两类对象转换为真正的数组:类似数组的对象(array-like object)和可遍历(iterable)对象(包括 Set 和 Map) // NodeList 对象letps =document.querySelectorAll('p')Array.from(ps).forEach(function(p) {// 只有转换为真正的数组才能使用数组方法console.log(p) })// arguments对象...
set: 设置某个值,无返回值、返回是否设置成功或者返回链式对象 load 加载某些数据,无返回值或者返回是否加载完成的结果 代码语言:javascript 代码运行次数:0 运行 AI代码解释 // 是否可阅读 function canRead() { return true; } // 获取名称 function getName() { return this.name; } 引用References 1. 对...
/*** Appen query stringandreturnthe valueina query string format.* @param {string}key* @param {string} value*/export const appendURLParams = (key, value) => {const searchParams = new URLSearchParams(window.location.search).set(key, value);returnsearchParams.toString();};// exampleconsole...
The alternative to passing a string as the first argument to these methods is to instead pass in afunction. Let’s look at an example. Here, then, would be a fairly typical use ofsetIntervalandsetTimeout, passing astringas the first parameter: ...
varc=newRegExp("1");c.toString=function(){alert("检测到调试")setInterval(function(){debugger},1000);}console.log(c); 内存耗尽。更隐蔽的反调试手段,代码运行造成的内存占用会越来越大,很快会使浏览器崩溃。 varstartTime=newDate();debugger;varendTime=newDate();varisDev=endTime-startTime>100;...
const button = document.querySelector("button"); try { button.addEventListener("click", function() { throw Error("error"); }); } catch (error) { console.error(error.message); } 与前面的 setTimeout 例子一样,任何传递给 addEventListener 的回调都是异步执行的: ...
id String Inherited from Layer The unique ID assigned to the layer. If not set by the developer, it is automatically generated when the layer is loaded. imageFormat Property imageFormat String The output image type. Possible Values:"png" |"png8" |"png24" |"png32" |"jpg" |"pdf...
It will return an error if the layer's capabilities.data.supportsAttachment is set to false. Parameters url String URL to the ArcGIS Server REST resource that represents a feature layer (usually of a Feature Service Layer or Map Service Layer). attachmentQuery AttachmentQuery autocast Auto...