jquery, js knowledge

jquery selector Jquery selector requires two backslashes to escape special characters when fetching elements For example: var orgName=$("#whir$t3198_f4972").val(); A minor question: <div style="WIDTH: 100%" id="whir$t3198-whir$t3198_f4972"> <div class="cls-ui cls-ui-ui207 cls-ui-readonly cls-ui-1003131 ...

Posted on Thu, 02 Jul 2020 10:44:13 -0400 by Tchelo

Crawling related news by keyword through Python crawler

    preface The text and pictures of this article are from the Internet, only for learning and communication, not for any commercial purpose. The copyright belongs to the original author. If you have any questions, please contact us in time for handling. Now the anti climbing mechanism of major websites has reached the level of madness, such ...

Posted on Sat, 27 Jun 2020 04:59:32 -0400 by OuchMedia

JS basic case

Baidu skin changing effect analysis: Using a loop to register click events for a set of elements When the mouse passes a picture, the current page background is replaced by the passing picture. After the mouse is removed, the default When the image is clicked, the current page background is changed to ...

Posted on Thu, 25 Jun 2020 22:03:59 -0400 by matrixd

HTML+CSS basic learning notes

Content overview CSS learning notes 1, CSS selector 2, CSS weight 3, Common CSS Styles 4, Classification of elements 5, Development experience 6, CSS box model 7, position 8, Demo (realization: Olympic five rings) CSS learning notes CSS: Cascading Style Sheets css document with suffix:. cs ...

Posted on Thu, 25 Jun 2020 07:29:14 -0400 by Eddyon

Two methods of closure and high frequency event performance optimization (throttling, anti shake)

Format of code development - pay attention to conflicts and dependencies There are many ways to write a project, such as modular development, namespace, closure Closure is actually a kind of writing Closure: it is a function structure unique to JavaScript (a nested use of functions) The formation of clo ...

Posted on Fri, 19 Jun 2020 00:52:31 -0400 by wpsd2006

Automatic sign in with Python crawler -- selenium mode

Automatic check in with Python crawler (1) -- selenium mode tags: Python crawler automatically checks in selenium XPath It is a simple application in reptile to realize automatic check-in calculation, but it does not hinder its practicability. In total, there will be two blogs implemented in the way ...

Posted on Mon, 15 Jun 2020 01:11:43 -0400 by likwidmonster

Guidelines for using babel-preset-env and stage-x

Introduction to babel babel is divided into three phases: parsing, transforming, and generating. The babel itself does not have any conversion capabilities, and if there is no plugin, the code passed through the babel is the same as the input. There are two types of babel plug-ins Grammar Plugin: Enables babel to parse more grammar during ...

Posted on Thu, 28 May 2020 20:58:42 -0400 by robwilson

Java EE development case shopping cart

1, Page Process: login page( login.jsp )- > shopping hall page( hall.jsp )- > shopping cart page( showMyCart.jsp )- > order page( myorder.jsp )Order confirmation page( orderOK.jsp) 2, Page + control After adding control logic: Login page( login.jsp )- > login control page (GoHallUIServlet) - > shopping hall page( hall.jsp )- ...

Posted on Sun, 24 May 2020 02:39:30 -0400 by taps128

Work record: C × ashx generates verification code picture and verification

Due to the vulnerability of the verification code in the work, it needs to be modified. Baidu has done a lot, and then it's not just this problem, it's that problem,     1. Verification code image generation https://blog.csdn.net/z10668107/article/details/103074267 This brother's. The ashx code is as follows using System; using System.Collect ...

Posted on Wed, 13 May 2020 11:34:50 -0400 by progwihz@yahoo.com

Native JS simply encapsulates JSONP to get data across domains

Encapsulating a simple JSONP with native JS is mainly used to understand how the front end implements JSONP.   JSONP cross domain requests data across domains by using the src attribute of < img > < script > and the href attribute of < link > to link external websites. Submit the cross domain request links and parameters to th ...

Posted on Tue, 05 May 2020 16:58:33 -0400 by knashash