I configured the MIME type of the file with the amr suffix in the apache configuration as application ms-download, Why it is a garbled page when opening a file in amr format using window.open in chrome, while a file in amr format can be successfully dow...
1. The custom event triggers the click event of .cpcstartrefresh, but triggers 2 click events each time 2. The code is as follows: window.onmessage = function (e) { create an event object, var myEvent = document.createEvent( Event ); m...
description: a regular match is given to the content of an input box, and the matching content is the product activation code. looks like this: "0C31-0B81-BB32-3094-0C31-0B81-BB32-3094 " Code: $( -sharplicenseCode ).keyup(function () { le...
A timing examination system is triggered if the click event is triggered within 5 seconds, and if it is not triggered, the system marks the correct answer at the end of the countdown. How to implement ...
is doing a question on Niuke.com. I encounter a problem: to achieve the function callIt, after the call meets the following conditions 1, the returned result is the result after calling fn 2, and the call parameter of fn is all the parameters after th...
I would like to ask what is wrong with this code. Thank you for your answers. ...
I need to implement in a chained promise function, any function error in the middle terminates the program, and can catch the error function, and then perform different operations according to different error functions. How can the following code be imp...
sincerely ask for advice: < hr > I want to use node as the background to build a video streaming server. The front end is similar to Youku VOD. It can record the playback node function, and load the progress bar at any point (starting from the c...
The horizontal coordinates of echarts are not specifically marked, and the X coordinates do not have a grid to indicate. Here is a figure that specifies . js * * createChartSix() { this.$http .get(this.$api.dataChart) .then(rsp => { ...
there is a text in the header H1, the height of the text font-size:62px,h1 is not set, and there is a gap between the text displayed in chrome and the upper and lower borders of H1. How does this gap come from and how should it be disposed of? tried t...
Wechat s official account project has a form page with a classification option that is a new page (the style is similar to this http: vue.ydui.org demo -sharp sc., but not a front-end separation project), and the back end now wants to integrate it int...
A table has fields ID title 1 DDDDDDD 2 ccccccc 3 HHHHHHHH There are fields ID AID STATUS 120 211 321 430 510 in B table. ID in table A corresponds to AID in table B I need to use a federated query to find all the data in table An and c...
how to create loading events for jsp form submission ...
problem description transform the front end of a project, the project is very large, now look at the source code plus attachments have more than 500 megabytes (including svn files), front-end pages also have hundreds. I tried to build a front-end proj...