cortana skills

I have been writing JavaScript code for a long time, and I cannot remember the beginning of my time. This article will share with you the seven tips of javascript (2). If you are interested in the knowledge of javascript skills, let's take a look. The last article will introduce you to the seven tips of JavaScript (2 ), I have been writing JavaScript code for a long time, and I can't remember the beginning of my time. I am very excited about the achie

Style script localization development method ① [front-end development skills], development methods development skills Do you often need to modify css and js Code during front-end development? When debugging code. Is the code repository constantly modified? How many operations are performed on the same script style file? Various cache cleanup operations are required for mobile debugging ...... These problems

Android development skills 3-formatting TextView text and development skills textview This example mainly studies how to display webpage links and change the specific text color in TextView. 1. main. xml 2. MainActivity. java: Package com. yayun. edittextdatedemo; import android. app. activity; import android. graphics. color; import android. OS. bundle; import android. text. html; import android. text.

SQL optimization skills (Oracle), SQL optimization skills oracle SQL optimization tips (1): Connection sequence in the Where clause: oracle parses the where clause in order from bottom to top. According to this principle, the connection between tables must be written before other where conditions, conditions that can filter out a large number of records must be written at the end of the where clause. For ex

Test essential skills Series 1: script data import using mysql commands, essential skills mysql Sharing TestWhat's the problem solved in the project! Today's sharing: How to pass MysqlHow can I import mysql script file data through the command line? ----- Solve the actual problem: WorkDuring the process, it is often necessary to import mysql script files. Many people may say that it is easy to import th

Summary of small Javascript skills (recommended) and javascript skills Let's talk a little bit about it. Let's just get it done .. The Code is as follows: /* @ Truncates the string length. The Chinese character is counted as two characters @ return [string] + '... '*/var subString = function (str, len) {var newLength = 0; var newStr = ""; var chineseRegex =/[^ \ x00-\ xff]/g; var singleChar = ""; var strLen

Mobile development skills and mobile development skills Opening Speech Recently, I took over a mobile project. I personally feel that I am doing fast and robust... The most important thing for mobile terminals is that the pages should be applicable to different mobile phone screens and ipad. Here are some tips to help you build your own projects efficiently without relying on any framework. I. Writing and m

Three CSS skills you need to know, three CSS skills The fierce competition among various browsers means that more and more people are now using devices that support the latest and most advanced W3C Web standards to access the Internet in a more interactive way. This means that we can finally use the larger and more flexible CSS to create browser front-end code that is simpler and better maintained. Now let'

Programmers can organize git skills within one year, and programmers can have git skills within one year. I have been using git for one year. The following is my summary of git usage over the past year, covering the vast majority of daily usage scenarios. Well, it may take at least a year to sort out and share it with you. If you don't understand it, you can reply to it. Create and use git ssh key First, se

Three CSS skills you need to know, three CSS skills The fierce competition among various browsers means that more and more people are now using devices that support the latest and most advanced W3C Web standards to access the Internet in a more interactive way. This means that we can finally use the larger and more flexible CSS to create browser front-end code that is simpler and better maintained. Now let'

JavaScript-programming skills-inert loading functions, javascript-programming skills Var testFunc = function () {if (typeof XMLHttpRequest! = 'Undefined') {testFunc = function () {alert ('1') ;}} else if (typeof ActiveXobject! = 'Undefined') {testFunc = function () {alert ('2') ;}} else {testFunc = function () {alert ('3 ');}}} This function will execute judgment every time it is called. We hope this ju

Vim/Vi practical skills (version 2) and vim Practical SkillsVim/Vi Practical Skills 1. Import files : R [file name] # import to the currently edited File For example, r/etc/inittab The upper part of the file is the/etc/services file, and the lower part is the/etc/inittab file. 2. Run the command [do not exit vi] :! [Command] :! Ls-l/home/hadoop Extended-import the command execution result to the current

TangIDE development skills-progress bar of Custom Resource loading window and tangide development skills All developers who use TangIDE to develop games know that You can edit resource loading windows like normal windows and add various controls and animation effects, but the progress bar is relatively monotonous, now, the progress bar is composed of two small pictures by default. When loading, the progres

MySQL quick comparison data skills, MySQL DATA skills In MySQL O M, R D colleagues want to compare the data on two different instances and find out the difference. In addition to the primary key, they also need to compare each field. How can this problem be solved? The first solution is to write a program to extract and compare each row of data on two instances. This is theoretically feasible, but the com

Use jq-friendly JSON printing skills in Linux and linuxjqjson skills Previously, Cat was used to print JSON under the command line, and the results were copied to the editor supporting JSON parsing. After a simple search, I found an article on StackOverflow. The answer with the highest support rating needs Python2.6 + support, but the version on the server is 2.4. The impact after the upgrade is unpredict

CSS Practical Skills: Practical Skills for making triangles and css Implemented triangle icon: The html code is as follows: Css style: body{background:#faf7ef;}div{margin:20px auto}div.arrow-up { width:0px; height:0px; border-left:50px solid transparent; border-right:50px solid transparent; border-bottom:50px solid #ff0000; font-size:0px; line-height:0px;} div.arrow-down { width:0px; height:0

30 skills required to learn python and python30 skills Collect these useful shortcuts 1. Exchange two numbers in the same place We create a new tuple on the right of the value assignment, and parse the unpack (unreferenced) tuples on the left to the variables When the value assignment is complete, the new tuples become unreferenced and marked useless. Finally, the variable exchange is completed. 2. chain-l

Python performance optimization skills summary, python performance optimization skills 1. using measurement tools to quantify performance can improve performance. Commonly UsedtimeitAndmemory_profilerIn additionprofile,cProfile,hotshot,memory_profilerUsedpsutil, So it cannot be tracked.cpython; 2. Use C to solve time-consuming processing. c is synonymous with efficiency. It is also the main way for python t

Common Oracle SQL skills (conversion) and oraclesql skills 1. Avoid "*" in the SELECT clause.When you want to list all columns in the SELECT clause, using dynamic SQL COLUMN reference '*' is a convenient method. unfortunately, this is a very inefficient method. in fact, ORACLE converts "*" into all column names in sequence during parsing. This task is done by querying the data dictionary, which means it tak

Analysis of cache operation skills for Smarty advanced applications and smarty cache Operation Skills This article describes the cache operations of Smarty advanced applications. We will share this with you for your reference. The details are as follows: Smarty Cache Control Smarty provides powerful caching functions. However, sometimes we do not want the entire document to be cached, but choose to cache a