find() 是数组的一个方法,用于查找并返回数组中第一个满足指定条件的元素。如果找到了匹配的元素,则返回该元素;如果没有找到,则返回 undefined。 使用语法如下: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 array.find(callback(element[, index[, array]])[, thisArg]) 其中,array 是要进行查找的数组...
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里得距离来返回两点之间的距离。 const distance = (x0, y0, x1, y1) => Math.hypot(x1 - x0...
You can use the JavaScript window.location.href property to get the entire URL of the current page which includes host name, query string, fragment identifier, etc.The following example will display the current url of the page on click of the button....
window.location.hostname - gets the URL's hostname. window.location.protocol - gets the URL's protocol in the address bar. window.location.pathname- gets the current page's path and filename. window.location.search - gets the URL's query portion. window.location.hash- gets the URL's an...
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hide.bs.tab (on the current active tab) show.bs.tab (on the to-be-shown tab) hidden.bs.tab (on the previous active tab, the same one as for the hide.bs.tab event) shown.bs.tab (on the newly-active just-shown tab, the same one as for the show.bs.tab event) If no tab was...
The only way to become a clever programmer is to: Practice. Practice. Practice. Code. Code. Code ! Commonly Asked Questions How do I get JavaScript? Where can I download JavaScript? Is JavaScript Free? You don't have to get or download JavaScript. ...
find('.modal-title').text('New message to ' + recipient) modal.find('.modal-body input').val(recipient) }) 用法 通过data 属性或 JavaScript 调用模态框插件,可以根据需要动态展示隐藏的内容。模态框弹出时还会为 元素添加 .modal-open 类,从而覆盖页面默认的滚动行为,并且还会自动生成一个 .modal-b...
ajax({ url: "http://fiddle.jshell.net/favicon.png", success: successCallback, complete: completeCallback, error: errorCallback }); 回调函数嵌套 一个回调函数中可以嵌入另一个回调函数,对于这种情况出现多层嵌套时,代码会难以阅读和维护,这个时候可以采用命名回调函数的方式调用,或者采用模块化管理函数,也...
array.findIndex(function(currentValue, index, arr), thisValue) Parameters ParameterDescription function()Required. A function to be run for each array element. currentValueRequired. The value of the current element. indexOptional. The index of the current element. ...