Electronic signature picture collection There are two complementary ways to collect seal pictures: Method 1: Online generation of seal pictures. However, this method has a drawback. There is a limit on the number of words in the company name in the seal.
There was a requirement before that to determine whether the web page in the iframe scrolled to the bottom to trigger the event. I found a lot of information online, which said it was under the current page, so I simply studied it myself and found a solut
This article introduces a detailed explanation of the HTML5 method of placing the footer at the bottom of the page (CSS+JS), and shares it with everyone. The details are as follows: JavaScript:<script type=text/javascript> $(function(){ functi
I found that there are a lot of charts used in industrial SCADA or telecommunications network management. Although most people use echarts for chart production, it is really easy to use. However, sometimes we cannot call other plug-ins. At this time, we h
The recent data statistics projects need to be used for Chinese maps, that is, dynamically display statistics in a province and region on the map. We do not need Flash, you can complete the map by relying on Raphael.js and SVG images to complete the map.
Let’s look at the example directly: The code copy is as follows: function fmoney(s, n) //s: the float number passed, n: I hope to return a few decimal places { n = n > 0 && n <= 20 ? n : 2; s = parseFloat((s +
The solution is as follows: The first one uses iframe, but there are fewer and fewer people currently using iframe, and iframe is still incompatible between different browsers. And some of my R & D personnel, they said that the value of the IFRAME win
Main content: 1. Analyze the meaning of lexical scope in JavaScript 2. Analyze the scope chain of variables 3. What happens when variable names are promoted? Recently, Chuanzhi Podcast was explaining JavaScript courses. Many friends thought JavaScript was
