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  How to use Chome dev tool to find event handler bound to an element

As a front end developer, there is frequent need to debug JS code and sometimes need to find out what event handler has been bound to a HTML element. In this post, we will show how to find out the click event handler bound to a HTML element, this same applies to other events as well. Nowadays, a web application is usually very complicated and there are lots of JS codes which makes it difficult to find out what click event handler has been bound to a HTML element, especially when the JS source co...

   JAVASCRIPT,CHROME,CHROME DEV TOOL,EVENT LISTENER     2019-08-17 22:14:36

  Create host only network on VirtualBox

Previously we showed how to install Ubuntu in VirtualBox. What if we want to communicate with the host OS from within the Guest OS on VirtualBox? There are a few ways to do this. For example, bridged network, Host only networks. Today we will show you how to enable network communication between host OS and guest OS using host only networks. A host only network will not need to access the physical network interface of the host OS. It will create a network between different virtual machines and th...

   VIRTUALBOX,NETWORK,VIRTUAL MACHINE,HOST-ONLY     2015-12-01 09:29:13

  How to enable developer mode on Huawei

As a developer, there might be some need to fake locations when developing and testing mobile apps for different countries. Lots of the times some fake GPS apps will be used and they will ask to enable mock location access on the device before allowing you to fake GPS. To achieve this, we first need to have developer mode enabled. In this post, we will show how the developer mode can be enabled and disabled on Huawei devices. Go to Settings, find About phone and open it. You should be able to se...

   ANDROID,HUAWEI,DEVELOPER MODE,DEVELOPER OPTIONS     2020-08-15 21:22:29

  Google Chrome to support sync clipboard data among devices

Google has been working very hard to make it possible for syncing clipboard data among PC and Android devices through Chrome. This feature is finally available in Chrome Canary 79 and is going to be released in future version of Chrome although it only supports sync data from PC to Android but not vice versa. But before getting to that day, users can start to explore this feature in latest Chrome Canary version 79.  There are three flags(chrome://flags) to control enablement of the feature...

   WINDOWS 10,CHROME CANARY,CLIPBOARD,CLIPBOARD SYNC     2019-09-15 07:18:26

  Package Control doesn't show up in Sublime Text 3

Package Control is a package management console for managing packages in Sublime Text. It is frequently used to install, update packages. In Sublime Text 3, the Package Control package can be installed by following instructions at https://packagecontrol.io/installation After installation, when you press Ctrl + Shift + P, a dialog with a text field will show up and package control commands can be typed and executed.  However, if you don't see the expected package control commands ...

   SUBLIME TEXT 3,SUBLIME TEXT,PACKAGE CONTROL     2016-09-25 09:35:07

  Create customized GitHub profile page

How long have you been using GitHub? Have you ever wondered whether one can customize his profile page with some fancy looking? Indeed GitHub allows developers to customize profile page through a secret repository. The secret is to create a repository with the same name as your GitHub username. And you will be granted into the work of customizing your own profile page. In this post, we will show a simple walk through on how to create it. Create secret repository As indicated by the term secret r...

   GITHUB,CUSTOMIZED PROFILE,SECRET REPOSITORY     2020-10-18 03:02:42

  Mac shortcut key cheatsheet

More and more people are using Mac computers or switch from Windows or other OS to MacOS, there are lots of shortcut keys which can help improve the work efficiency or ease operations. This post will try to list some commonly used shortcut keys in Mac. But before that, let's first know some common keys on a Mac computer keyboard. There are four major function keys: Command, Control, Option and Shift. Most of the shortcut keys will combine the functional key and other key. Basic Command key is t...

   SHORTCUT,SCREENSHOT,COMMAND,SHORTCUT KEY,MACOS     2019-02-05 07:13:06

  CSS DIV position analysis

When using CSS to set the position of DIV, we may often get confused with the 4 position properties : static, relative, absolute and fixed. If we don't understand them correctly, we may often get unexpected result. Here we make some analysis to them.The definitions of these 4 properties:static : The default position property. It has no position actually. The element will appear where it should be (top, bottom, left, right or z-index has no use here)relative : This one will position relati...

   CSS, DIV,position,relative,absolute     2013-01-29 03:23:57

  Lots of Chinese users experienced Samsung phone crashes

Starting from 23 May morning(Beijing time), lots of Samsung phone users in China suddenly experienced system crashes and couldn't use the phone anymore.   The symptoms the users saw were that the phone started to restart infinitely and the screen turned into dark screen and nothing can be done to get it recovered. Based on the reports, the impacted models include Samsung Galaxy S8, S9, S10 and S20 series,  Other models don't receive many reports yet. After receiving the reports,...

   SAMSUNG,SAMSUNG GALAXY,SYSTEM CRASH,AUTO UPDATE,NEWS     2020-05-23 05:23:55

  Unknown system variable 'query_cache_size' in DbVisualizer while accessing MySQL

DbVisualizer is a very popular GUI application to view the data stored on a database. It supports various databases such as Oracle, MySQL etc. It relies on different database drivers to connect to the database server and access the data stored there.  In this post, we will try to solve one problem when accessing the latest MySQL database(8.0+) through DbVisualizer. MySQL database starting from 8.0 has lots of changes which may not be compatible with old version of software or libraries whic...

   MYSQL,MYSQL 8,DBVISUALIZER,QUERY_CACHE_SIZE     2018-06-30 03:48:17

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