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Detailed explanation of the solution to the problem of rough edges in Html5 Canvas drawing lines

All the lines drawn by the line drawing instructions of Html5 Canvas have burrs (such as lineTo, arcTo, strokeRect). This is because the position corresponding to the integer coordinate value in Canvas happens to be the gap between the screen pixels, so w

2025-01-24
Introduction to the use of event events under ie and ff

Event is an object that comes with IE, but this object does not exist in FF. Events can only be simulated by passing parameters. In addition, srcElement is used in IE to obtain the event trigger source, and target is used in FF. Therefore, relevant browse

2025-01-24
js time comparison example sharing (date comparison)

Copy the code code as follows: <html><head><script language="javascript" type="text/javascript">/** 日期比较 **/function compareDate(strDate1,strD

2025-01-24
Sample code for canvas ring countdown component

This article introduces the sample code of canvas ring countdown component and shares it with you. The details are as follows: The effect is as shown in Figure 1: Canvas ring countdown component Canvas ring countdown is a countdown based on Canvas. It is

2025-01-24
JavaScript can easily make the pop-up submenu automatically disappear when the mouse is moved away

Copy the code code as follows:<html><head><style type="text/css"> .menu { background-color:green; width:120; height:20; color: white; text

2025-01-24
A brief discussion on Rough.js, a hand-drawn style graphics library based on Canvas

The preface recommends a hand-drawn style graphics JS library based on Canvas. Rough.jsRough.js is a lightweight (about 8k), Canvas-based library that can draw rough hand-drawn styles. Provides basic capabilities for drawing lines, curves, arcs, polygons,

2025-01-23
JavaScript paging code example sharing (js paging)

Call: Copy the code as follows: var pageChange = function (index) {var html = pager("divid", index, 5, 1000, pageChange, { showGoTo: false,

2025-01-23
Canvas, the strongest interface of H5, implements dynamic graphics functions

In the last article, we shared how to use canvas to draw graphics, but the drawings were all static graphics. This week we will learn how to use canvas to draw dynamic graphics. What is animation? Before we draw animation, we must understand what animatio

2025-01-23
Differences in CSS in Internet Explorer 6, 7 and 8(3)

A transparent border color allows a border to occupy the same space as the border color when it is visible (or opaque).

2025-01-23
Example of replacing line breaks in a text field

Note: The code passed the test in the actual project. I have omitted some unimportant parts. You can focus on the color-coded part of the foreplay: Question: Why do you do this? ? Answer: There is a function in the project to save the entered text field t

2025-01-23
Detailed explanation of how to solve the problem of the interface not returning to the original position when the IOS keyboard is retracted through the focusout event

Problem Symptoms Today when I was developing a mobile H5 page, I encountered the problem that the interface could not return to its original position when the keyboard was retracted on IOS. The problems and symptoms are described in detail below: The page

2025-01-23
Javscript deletes the specified element in the array and returns a new array

To delete a value in the array and return a new array, you need to traverse the old array to find the element to be deleted. Copy the code as follows: /* * Delete the specified value in the array*/ Array.prototype.remove=function(value){ var len = this.le

2025-01-23
Recommended writing order of css properties in mozilla

I've read a lot of questions about reflow recently, but I didn't notice this phenomenon before. Recently, I started to study it slowly. After all, I didn't pay attention to many performance details in the past. Regarding reflow, it should simp

2025-01-23
The parent page displays a semi-transparent dialog that pops up on the mask layer.

In the previous chapter, I introduced that a partial area editing module can be added to the masked page. In this chapter, I will introduce the parent page to display the mask layer and pop up a semi-transparent dialog. Dialog is the pop-up subpage, div.

2025-01-23
How to implement expandable rounded corner labels

When making web pages, it is very popular to use tags for classified display. Rounded-corner tags have the advantages of beautiful style and vivid expression. Generally, we will make the background of the rounded-corner tag into a picture. The disadvantag

2025-01-23

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