SEARCH KEYWORD -- Delete
Consistency between Redis Cache and SQL Database
Nowadays, Redis has become one of the most popular cache solution in the Internet industry. Although relational database systems (SQL) bring many awesome properties such as ACID, the performance of the database would degrade under high load in order to maintain these properties. In order to fix this problem, many companies & websites have decided to add a cache layer between the application layer (i.e., the backend code which handles the business logic) and the storage layer (i.e., the SQL d...
User experience distance
Good user experience can narrow the gap between product and users, it can also improve the user efficiency and increase satisfaction and comfort of users. Here we talk about user experience distance with different examples: 1. Floating bubble layer When users need to delete one picture,they click on the "Delete" button, then the floating bubble layer appears to prompt the user to confirm the deletion, users only need to focus on the picture which reduces the visual burden, and also no need to mo...
User experience, Design,Detail 2012-12-20 13:20:16
Strict mode in JavaScript
1. Introduction In addition to normal mode, ECMAScript 5 includes the other mode : strict mode. It means it will make JavaScript codes execute in a more strict environment. The purposes to have strict mode are: Remove some unreasonable and parts of JavaScript syntax. Reduce some of the quirk behaviors. Remove some insecure parts of code execution. Make the execution environment more secure Improve interpret efficiency and increase the execution speed Build foundation for future JavaScript versi...
JavaScript, Strict mode. Introduction 2013-01-17 05:00:26
My frequently used Linux commands
In our day to day work. We may have many chances working on Linux/Unix systems. There are many things we may need to do, checking logs, navigating in directories, creating file or installing software. We may use many commands to complete the work, such as ls, mkdir, cd etc. Below are my frequently used Linux commands or programs recently: pwd : print working directory, sometimes I need to check which working directory I am in in order to know where to go next. ls : List current directory files,...
The Windows 8.1 Update is here! What to Expect from it?
Windows has finally released the update for Windows phone, the Windows 8.1! Microsoft has finally released the version upgrade which has interesting enhancements. This may not seem like a major upgrade but it definitely looks interesting. This latest update has been released on the Lumia phones that were running using the 8.0 version. There is a lot to look forward to in this new update, and some of it will definitely feel interesting. Folders along Live Tiles For a long time, people were attrac...
windows 8.1 2014-08-21 08:34:24
37 powerful Linux shell commands
To work on Linux platform, you cannot avoid using shell commands to complete some tasks. These tasks can be as simple as list files in some directories or find some text in some file, or can be as complex as monitoring processes. In this post, we will share 37 powerful Linux shell commands. Task Commands 1 Delete file with 0 byte(empty file) find . -type f -size 0 -exec rm -rf {} \;find . type f -size 0 -delete 2 Check process memory consumption ps -e -o "%C : %p : %z : %a"|sort -k...
Linux command,List 2013-09-16 07:47:16
Why I Use Vim
I've been using MacVIM as my editor of choice for a couple of years now, yet in many ways I still feel like a beginner. Every day I am learning more and more about my editor, but it takes a conscious effort to become proficient with an editor like Vim. Here's why I make that effort. Editors are something that are very personal; they have to fit with your own work flow approach to programming. If you have ever stopped to think about it, the way each person goes about editing text is quite differe...
SQL Grammar Summary
æ•´ç†äº†ä¸€ä¸‹ï¼Œå¸Œæœ›å¯¹å¤§å®¶æœ‰ç”¨SQLè¯å¥å¤§å…¨ --è¯ å¥ åŠŸ 能--æ•°æ®æ“作SELECT --从数æ®åº“表ä¸æ£€ç´¢æ•°æ®è¡Œå’Œåˆ—INSERT --å‘æ•°æ®åº“è¡¨æ·»åŠ æ–°æ•°æ®è¡ŒDELETE --从数æ®åº“表ä¸åˆ 除数æ®è¡ŒUPDATE --æ›´æ–°æ•°æ®åº“表ä¸çš„æ...
SQL,Query,Summary,Select,Update,Delete,I 2011-05-20 12:04:55
Bill Gates : Ctrl+Alt+Del was a mistake
Microsoft chairman Bill Gates admitted that Ctrl+Alt+Del command was a mistake when he was in a fund raising campaign at Harvard University last week. This command was initially designed to reboot the system. David Rubenstein, the Harvard fund raising campaign chairman, asked Bill Gates : "Why when I turn on my software or computer do I need to have my three fingers to press control,alt and delete? Whose idea was that?" The answer given by Bill Gates is : "Basically because when you turn your co...
Bill Gates,Ctrl-Alt-Del,Mistake 2013-09-26 23:28:37
Vim anti-patterns
The benefits of getting to grips with Vim are immense in terms of editing speed and maintaining your “flow†when you’re on a roll, whether writing code, poetry, or prose, but because the learning curve is so steep for a text editor, it’s very easy to retain habits from your time learning the editor that stick with you well into mastery. Because Vim makes you so fast and fluent, it’s especially hard to root these out because you might not even notice them...
Vim,Anti-pattern,macro,syntax 2012-02-08 10:06:15
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