Programmer Group

I. Writing on the front Before using the WebDriver framework, I used two other automated testing frameworks, IBM Rational Robot and TestComplete, which are powerful payment tools for automated testing of Web, mobile and desktop applications, compared to WebDrIver, they are automated. For script developers, there are not enough "open" ...

Foreword: This is the author's own understanding and arrangement after learning. If there are any mistakes or doubts, please correct them and I will keep updating them.   getElementById() The obj.getElementById(id) method receives a parameter (the ID of the element), returns the element object if it is found, and returns null if it does not ex ...

When the page is fully loaded (including all images, JavaScript files, CSS files and other external resources), the load event on the window will be triggered. There are two ways to define onload event handlers. The first way is to use the following JavaScript code: EventUtil.addHandler(window,"load",function(event){ alert("loaded!"); } ...

parentNode What you get is your own father (direct relationship) // Click on the child to hide the father <script> window.onload = function(){ var child = document.getElementById("child"); child.onclick = function(){ this.parentNode.style.display = "none"; } } </script> Brother node ...

I. HTML Event Processing 1. Advantages: Specifying event handling in HTML creates a function that encapsulates the value of element attributes. This function has a local variable event, that is, event object, through which event object can be accessed directly. You can use with to extend the scope to allow time handlers to access other for ...

Overview: Array in javaScript contains not only reduce methods, but also foreach,map,filter and so on. Here we mainly introduce reduce methods. Reduc () accumulates data from left to right until the end is a value (that is, the final result), which sounds abstract. The accumulated attention can be either data or string editing. 1. Grammar: a ...

I. Requirement Description and Common Solutions Make a text box to limit the maximum number of words, real-time monitor the number of currently entered words, and display. At the beginning of this period, I realized this function by adding onkeyup event method to textarea control, printing out the length of textarea value in the method, and add ...

This article covers the following knowledge points: Python crawler, MySQL database, html/css/js foundation, selenium and phantomjs foundation, MVC design pattern, django framework (Python web development framework), apache server, linux (centos 7 as an example) basic operation. Therefore, it is suitable for students who have the above foundatio ...

1. Vertical alignment If you use CSS, you will be confused: how do I align elements in the container vertically? Now, using CSS3 Transform, you can gracefully solve this puzzle: .verticalcenter{ position: relative; top: 50%; -webkit-transform: translateY(-50%); -o-transform: translateY(-50%); transform: translateY(-50%) ...

1 Initialization //Common Initialization Methods var stringVal = "hello iFat3"; //Constructor Creation Method var stringObj = new String("hello iFag3"); 2 length attribute var stringVal = "hello iFat3"; //Output 11 console.log(stringVal.length); 3 charAt() Returns the character at a given position var stringVal = "hello iFat3"; //Output e conso ...