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There are two types of network programming: 1) TCP socket programming is the mainstream of network programming. The reason why it is called Tcp socket programming is because the bottom layer is based on the Tcp/ip protocol. For example: QQ chat 2) http programming of b/s structure, when we use the browser to access the […]

The leavepictureinpicture event is fired when the HTMLVideoElement leaves picture-in-picture mode successfully. This event is not cancelable and does not bubble. Syntax Use the event name in methods like addEventListener() , or set an event handler property. addEventListener ( ‘leavepictureinpicture’ … The post html video video exit picture-in-picture event leavepictureinpicture event first appeared on Lenix

Usually to make a custom drop-down box, the expanded div needs to be closed after clicking any blank area $(document).on(‘click’,function(e){ var _con = $(‘.ztree,.js_ztree’); // Set the target area (check elements that do not need to be closed when clicking) if(!_con.is(e.target)&&_con.has(e.target).length === 0){ $(‘.ztree’).hide() } }) … The post html js closing custom popup layer

document.getElementsByClassName() and document.getElementById(), you should be very familiar with the js methods of these two methods, that is, to obtain DOM elements, what is the difficulty. Today I made a mistake with these two simple methods. There is a button button on my page, please paste the structure code of the button directly, it is

video picture-in-picture (small window) < video id = “video_paly” controls src = “https://v-cdn.zjol.com.cn/280443.mp4” poster = “https://ossweb-img.qq.com/images/lol/web201310/skin/big91012.jpg” >您的浏览器不支持video 标签。 < / video > < button onClick = { ( ) => { var video : any = document . getElementById ( “video_paly” … The post video Picture-in-Picture (Small Window) first appeared on Lenix Blog . This

I ran into a problem today. Trying to add css attributes to a node through jquery to make it achieve the expected style performance. But it doesn’t work. But in another way. Invalid spelling: //这种写法不生效。 $dom.find(“p.text-p”).css(“-webkit-line-clamp”,3) ; //或$dom.find(“p.text-p”).css({“-webkit-line-clamp”:3}) ; Effective spelling: //此处这个3，可以是个变量。 $dom.find(“p.text-p”).attr(“style”, “-webkit-line-clamp:” + 3); Note that in this case, the css() method does

The method of string replacement in js: 1. Use regular expression, the syntax is [str.replace(“string to be replaced”, “new string”)]; 2. Use conventional replacement method, the syntax is [ str.replace(/string to be replaced/g, “new string”)]. Related graphic recommendation: js tutorial The method of string replacement in js: Two methods: regular & regular str.replace(“string to be

Article directory fetch basic use Response object 1. Synchronization properties 2. Judgment request 3. Operation header 4. Read the content 5. Create a copy 6, the bottom interface custom HTTP request cancel the fetch request fetch basic use The Fetch API provides an interface for obtaining resources (including cross-domain requests), which is used to replace

js implements the copy function 1. Specific scene The front-end sometimes needs to implement the function of clicking a button to copy. At this time, the user cannot manually select the content and right-click to copy. 2. Implementation method 1. document.execCommand (1) concrete realization When copying, first select the text, then call document.execCommand(‘copy’), the selected

Recently, the front end is doing a function, The content of the function is to click the A button to generate content 1, click the B button in the content 1 to generate the content 2, and click the C button in the content 2 to return to the original interface style. The entire jquery

Method 1 (recommended): indexOf() indexOf() method: Returns the first occurrence of a specified string value in the string. If the string value to be retrieved does not appear, the method returns -1. var str = “LiHeErNAN” ; console . log ( str . indexOf ( “A” ) != – 1 ) ; // true Method

urlencode encoding encodeURIComponent in js (the specific content of the encoding) Decode decodeURIComponent (the specific content of the decoded code) Rationale: Encode the components of the URL individually, not for encoding the entire URL … The post urlencode encoding in js first appeared on Lenix Blog . This article is reprinted from https://blog.p2hp.com/archives/9069 This site

<input type=”button” value=”modify” οnclick=”changeContent()”> The function changeContent written in onclick on the element is equivalent to calling the function directly. The this used in the function points to the global object window, instead of pointing to the element Then to get the object of the node where the onclick is located, we need to pass