learn to code codecademy

1: read a book to understand the concept!The purpose of this book is to have a basic understanding of js!This time should not be too long. Check the progress, days to a week!2: when surfing the Internet, pull the source code based on different page effects!Take notes! Build your own results! Common online knowledge must be the most important thing for JavaScript!3: when reading the source code, you should c

In the afternoon, I waited for three weeks for the entry-level silverlight3.0 tutorial to finally arrive. During the class, I flipped through the afternoon and got to know about it. It's still quite basic. It's better to get started. There are many successful online cases. The overall situation is still OK. Next we should take a good look. Here we will first provide you with the source code and video tutorials on the silver optical disc. First is

parsingRecommendation 164: Focus on different engines ' differences in CSS renderingThe 9th Chapter JavaScript programming specification and applicationRecommendation 165: Do not confuse JavaScript with the browserRecommendation 166: Mastering the JavaScript pre-compilation processRecommendation 167: Accurately analyze JavaScript execution orderRecommendation 168: Avoid two evaluationsRecommendation 169: Use of direct quantities is recommendedRecommendation 170: Don't let the JavaScript engine

Nyview *customview;@end@implementationnyviewcontroller-(ibaction) Clearbtnclick {[Self.customview clearView];} -(Ibaction) Backbtnclick {[Self.customview backview];} -(Ibaction) Savebtnclick {UIImage *newimage = [UIImage CaptureImageWithView:self.customView];//4. Save to albumUiimagewritetosavedphotosalbum (NewImage, Self,@selector(image:didFinishSavingWithError:contextInfo:), nil);} - (voidImage: (UIImage *) image didfinishsavingwitherror: (nserror *) Error ContextInfo: (void*) contextinfo{if(

With canvas and JavaScript, you can draw 2d images on a page, but for 3d images, there is nothing to do. To draw a 3d image, you must use WEBGL.In my understanding, WebGL is embedded in the browser, which is used when using JavaScript to invoke the WebGL API provided by the browser and then drawing the image in the canvas drawing area. When I started to touch WebGL, I didn't understand it, so I thought the code would be so messy, repeating it a bunch

Speaking of CSS3 believe is not unfamiliar, but for the application, but rarely someone experience, especially in the development of large web sites, or in the conservative use of the current CSS language to write code. In some personal website and blog, already a lot of people began to use CSS3 to write the website, in short, the extensive application of CSS 3 is a need for a wide range of support can become more extensive. Here are 7 good CSS3

Monday.% W indicates the day of the week by number (0 indicates Sunday ).% X date representation without time.% X does not include the time representation of the date. Eg: 15:26:30The two digits % Y indicate the year (range: 00 to 99 ).% Y indicates the complete year number, that is, the four-digit number. Example: 2008% Z (% Z) Time Zone or abbreviation. Eg: China Standard Time% Characters. Obtain local time 2 Advantage: accurate to milliseconds; disadvantage: Windows API is used# Include Sy

//1.php //2.php 我是想输出这个88,怎么提示错误? Reply content: //1.php //2.php 我是想输出这个88,怎么提示错误? namespace a\b; Define the namespace, using this definition, you need to ensure that the first line of the script!/*----------------------------*/namespace a\b {//In this way, you can not be in the first row, and you can define multiple namespaces in the same file} namespace A\b\c {}/*----------------------------*///say your mistake, even if the variable is a namespace, yo

PHP Base Inheritance Found a piece of code in the book, knocked down and found the wrong. Name= $name, $this->sex= $sex $this->age= $age;} function say () {echo "My name ". $this->name. ", Gender ". $this->sex. ", Age ". $this->age. "";} function run () {echo $this->name. Is walking";}} Class Student extends person {var $school; function study () {echo $this->name. Being ". $this->school." Learn