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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 ...

1. Sending requests with XMLHttpRequest objects (1) get request var xmlhttp; if (window.XMLHttpRequest) {// code for IE7+, Firefox, Chrome, Opera, Safari xmlhttp=new XMLHttpRequest(); } else {// code for IE6, IE5 xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); } xmlhttp.onreadystatechange=function() { if (xmlhttp.readyState== ...

Story Background: These days, I met a customer who took minutes of the meeting. During each meeting, a special device would record the position of the speaker and display it in an angle value. He gave me the angle value, and let me make a chart for him to show everyone's approximate position. Customers think of using Echarts charts to do it, I ...

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 wonder if you have ever thought about this. When Wechat's personal public number is becoming more and more popular and the media is becoming more and more popular, have you ever thought about applying for a Wechat public number of your own? In the circle of friends, more and more small partners are forwarding articles in their Wechat Public N ...

Documents are referenced in ___________. https://reacttraining.com Make your own website after work and use Reactjs to build it. Recent upgrades to react and webpack versions have made it difficult to start previous projects, which has caused a lot of confusion, so record it in case of trampling again. Using Reactjs inevitably involves two esse ...

Introduction As mentioned above, there are literal and factory modes and constructor modes for creating objects. It is found that they have their own shortcomings. So I will introduce several ways to create objects to try to find a painless mode (vii). Prototype pattern There will be a very obscure paragraph below, so keep up with it and don't ...

Where is this article used? Let me start by saying that last week, I received a task. Because the company's business is to connect different banks, such as ICBC's red color and other banks'blue color by default, so in the case of page consistency, ensure that the buttons and ICON on the page are configurable, so that order changes a value [ ...

Original address: http://mtmzorro.github.io/201... Project Background Need to be compatible with IE7 (important persuasion to discard IE6 based on data support) The last version of the traditional jQuery DOM development model, after numerous manual maintenance has been horrible to see Core Business Processes, Maintainability and Robustness Req ...