


JS implementation of simple object-oriented color selector example_javascript skills
The example in this article describes the implementation of a simple object-oriented color selector in JS. Share it with everyone for your reference, the details are as follows:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> <title>Untitled Document</title> </head> <body> <script type="text/JavaScript"> <!-- var colorPicker = function(idStr){ this.colorPool = ["#000000","#993300","#333300","#003300","#003366","#000080","#333399","#333333","#800000","#FF6600","#808000","#008000","#008080","#0000FF","#666699","#808080","#FF0000","#FF9900","#99CC00","#339966","#33CCCC","#3366FF","#800080","#999999","#FF00FF","#FFCC00","#FFFF00","#00FF00","#00FFFF","#00CCFF","#993366","#CCCCCC","#FF99CC","#FFCC99","#FFFF99","#CCFFCC","#CCFFFF","#99CCFF","#CC99FF","#FFFFFF"]; this.initialize(idStr); } colorPicker.prototype = { initialize: function(idStr){ var count=0; var html = ''; var self = this; html+= '<table cellspacing="5" cellpadding="0" border="2" bordercolor="#000000" style="cursor:pointer;background:#ECE9D8" mce_style="cursor:pointer;background:#ECE9D8" >'; // html+= '<tr><td align="center" colspan="8" width="160" height="20" id="currentColor" bgcolor="#ffffff">当前颜色</td></tr>'; for(i=0;i<5;i++) { html+= "<tr>"; for(j=0;j<8;j++) { html+= '<td align="center" width="20" height="20" style="background:'+ this.colorPool[count]+'" mce_style="background:'+ this.colorPool[count]+'" unselectable="on"> </td>'; count++; } html+= "</tr>"; } html+= '</table>'; this.trigger = document.getElementById(idStr); this.div = document.createElement('div'); this.div.innerHTML = html; var tds = this.div.getElementsByTagName('td'); for(var i=0,l=tds.length;i<l;i++){ tds[i].onclick = function(){ self.setColor(this.style.backgroundColor); } } this.div.id = 'myColorPicker'; this.trigger.parentNode.appendChild(this.div); this.div.style.position = 'absolute'; this.div.style.left = this.trigger.offsetLeft + 'px' this.div.style.top = (this.trigger.clientHeight + this.trigger.offsetTop)+ 'px'; //this.hide(); this.trigger.onclick = function(){ if(self.div.style.display == 'none'){ self.show(); return false; }else{ self.hide(); return false; } } }, setColor : function(c){ this.hide(); document.getElementById('demo').style.backgroundColor = c //proEditor.setColor(c); //自己定义函数决定setColor的功能 }, hide : function(){ this.div.style.display = 'none' }, show : function(){ this.div.style.display = 'block' } } // --> </script> <div > <a href="#" mce_href="#" onclick="initColorPicker();return false" id="demo" style="position:absolute;left:200px">颜色选择</a> </div> <script type="text/javascript"> <!-- function initColorPicker(){ picker = new colorPicker('demo'); } // --> </script> </body> </html>
Friends who are interested in JS color tools can refer to the online tools on this site :
RGB Color Query Comparison Table_Color Code Table_Complete English Names of Colors
Online web color matching tool
For more JavaScript-related content, please view the special topics on this site: "Summary of JavaScript switching special effects and techniques", "Summary of JavaScript search algorithm techniques", "JavaScript animation Summary of special effects and techniques", "Summary of JavaScript errors and debugging techniques", "Summary of JavaScript data structures and algorithm techniques", "Summary of JavaScript traversal algorithms and techniques " and "Summary of JavaScript mathematical operation usage"
I hope this article will be helpful to everyone in JavaScript programming.

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics

Essential tools for stock analysis: Learn the steps to draw candle charts in PHP and JS. Specific code examples are required. With the rapid development of the Internet and technology, stock trading has become one of the important ways for many investors. Stock analysis is an important part of investor decision-making, and candle charts are widely used in technical analysis. Learning how to draw candle charts using PHP and JS will provide investors with more intuitive information to help them make better decisions. A candlestick chart is a technical chart that displays stock prices in the form of candlesticks. It shows the stock price

Face detection and recognition technology is already a relatively mature and widely used technology. Currently, the most widely used Internet application language is JS. Implementing face detection and recognition on the Web front-end has advantages and disadvantages compared to back-end face recognition. Advantages include reducing network interaction and real-time recognition, which greatly shortens user waiting time and improves user experience; disadvantages include: being limited by model size, the accuracy is also limited. How to use js to implement face detection on the web? In order to implement face recognition on the Web, you need to be familiar with related programming languages and technologies, such as JavaScript, HTML, CSS, WebRTC, etc. At the same time, you also need to master relevant computer vision and artificial intelligence technologies. It is worth noting that due to the design of the Web side

How to use PHP and JS to create a stock candle chart. A stock candle chart is a common technical analysis graphic in the stock market. It helps investors understand stocks more intuitively by drawing data such as the opening price, closing price, highest price and lowest price of the stock. price fluctuations. This article will teach you how to create stock candle charts using PHP and JS, with specific code examples. 1. Preparation Before starting, we need to prepare the following environment: 1. A server running PHP 2. A browser that supports HTML5 and Canvas 3

With the rapid development of Internet finance, stock investment has become the choice of more and more people. In stock trading, candle charts are a commonly used technical analysis method. It can show the changing trend of stock prices and help investors make more accurate decisions. This article will introduce the development skills of PHP and JS, lead readers to understand how to draw stock candle charts, and provide specific code examples. 1. Understanding Stock Candle Charts Before introducing how to draw stock candle charts, we first need to understand what a candle chart is. Candlestick charts were developed by the Japanese

Go language supports object-oriented programming through type definition and method association. It does not support traditional inheritance, but is implemented through composition. Interfaces provide consistency between types and allow abstract methods to be defined. Practical cases show how to use OOP to manage customer information, including creating, obtaining, updating and deleting customer operations.

OOP best practices in PHP include naming conventions, interfaces and abstract classes, inheritance and polymorphism, and dependency injection. Practical cases include: using warehouse mode to manage data and using strategy mode to implement sorting.

The relationship between js and vue: 1. JS as the cornerstone of Web development; 2. The rise of Vue.js as a front-end framework; 3. The complementary relationship between JS and Vue; 4. The practical application of JS and Vue.

There is no concept of a class in the traditional sense in Golang (Go language), but it provides a data type called a structure, through which object-oriented features similar to classes can be achieved. In this article, we'll explain how to use structures to implement object-oriented features and provide concrete code examples. Definition and use of structures First, let's take a look at the definition and use of structures. In Golang, structures can be defined through the type keyword and then used where needed. Structures can contain attributes
