front end development languages

value, in fact, you can write a regular expression to do username verification. Submitlogin is the submission of the data, as long as the model's save is invoked at the time of submission.Here is the code for the data model:We will find that the location of the user name in the page automatically appears in admin, which is caused by the initialization of the username field in the model.Model.save will trigger the sync method, and in the sync method we write the function corresponding to the ser

components are provided, and we have to combine them. Then try the template.Templates can be found online free of charge, of course, good templates are also available.The nifty-v2.2.2 template was demonstrated in class. Go to the template folder to find the sample you need, is a complete page. First, based on a template to draw the page, and then according to the actual needs to change to their own needs.Example-Carousel diagram (Bxslider)Here we introduce a component: Bxslider. Official websit

Django, because the testing department often does not have such good front-end engineer support, we generally use bootstrap on the front-end page, The problem is that front-end code is terrible now, because no system has learned

template.2, the key word to be simple. Design should be beautiful and concise, so that users will not be confused when using.Error 8:The underlined content is not a linkIt is well known that underlined content can easily be linked. Don't casually put an underscore in the text, which can be confusing. If you really want to emphasize a word, try adding a bold or enlarged font.Summarize:By identifying these common mistakes, web developers can avoid many of the frustrations that make others suffer.

The difference between XHTML and HTML: XHTML must end properly. XHTML must be closed XHTML tag names must be in lowercase letters XHTML must have a root element In XHTML, you need to assign a value to all properties XHTML ' In XHTML, do not write in comments-- The picture must have descriptive text, and the ALT attribute must have Replace the name attribute with the id attribute The difference betwe

In doing Web front-end development, we have to know how the client and the service side is how to communicate, popular simple point is the request (client) > response (server) process, but how the client is to the server how to request it. And the service side is how to respond to it, the response information is not what we want it. Look down with the question. H

1. HTML is the carrier of Web content . The content is the information that the Web creator puts on the page to let the user browse, can contain text, picture, video and so on. 2. CSS style is performance . Just like a web coat. For example, the title font, color changes, or for the title to add background pictures, borders and so on. All these things that change the appearance of the content are called performance.3. JavaScript is used to achieve special effects on Web pages . such as: Mouse o

, although the elements of float are not part of the normal stream, but the text does not overwrite the image, but it surrounds the picture.4. An unresolved issue:When I wrote this assignment, I encountered a strange problem, and there was a situation in which:The corresponding code is as follows:The box model is as follows:But after setting the overflow to hidden, the problem is resolved:Code:Search on the Internet, there is an explanation: https://www.zhihu.com/question/30938856, but they do n

Through the previous front-end development artifact webstorm--Automation Workflow (preface), I believe everyone grunt automation tools have a preliminary understanding. Next I'll use the WROC3000 Web as a prototype to demonstrate how to work with the grunt toolIncrease Productivity，compress code to the maximum extent。1. First install the node environment into the

thickness 2, border style 3, border color border direction Top right bottom left border Border-top Borde R-top-width Border-top-style Border-top-color Border-right Border-right-width Border-right-style border-right-color Bor Der-bottom border-bottom-width Border-bottom-style border-bottom- Color Border-left border-left-width Border-left-style Border-left-color - Head> Body> Div>Div> Body>HTML>4. Shape of the borderDOCTYPE HTML>HTML> Head>