At work, we often encounter big data processing problems. The following two tool classes are written when processing big data. We recommend that you use map to process two lists of data, if the method of listing is quite big data, it will play a role. At that time, two 100,000-level lists were processed, and the variant of the modified method was used to solve the problem.
1.txt file and list set comparison tool
Use the n tool to easily manage the Node. js version and the n tool node. js version.
Preface
I believe that for learning Node. as all js colleagues know, the Node version is updated quickly. Currently, the latest stable version has been updated to v7.6.0, while the production environment generally uses the LTS (Long-term Support) version, the latest version is v6.10.0.
Local LTS download:Click here
The new
Not only does Spring provide a full-featured application development framework, but it also has a number of tool classes that you can use directly when you write a program, not only in spring applications but also in other applications, most of which can be detached from spring The frame is used. Knowing what handy tool classes are available in Spring and using them appropriately when you write them will he
the Dell System e-support Tool (DSET) tool can be used to collect server hardware information, store information (RAID cards, hard drives, etc.). and Linux drivers, services, network settings, and so on, but also includes cpu,memory, ESM log, bios/firmware versions and system health (fan/voltage levels).
Download Address:
Http://support.dell.com/support/topics/global.aspx/support/en/dell_system_tool
In the Windows operating system, a large number of settings buttons can sometimes make you dizzy, that is, when you need to target to find a certain setting, the computer needs to adjust, it is a very troublesome to spend more time. Scarecrow Convenience Tools as a tool in the life of people. When assisting users to set up a computer system, it provides a common shortcut tool that is believed to enhance you
Crosstool is a set of script tools that build and test different versions of GCC and glibc for those architectures that support glibc. It is also an open-source project, namely http: // kegel.com/crosstool. It is much easier to build a cross-tool chain with crosstool than the preceding step-by-step compilation method. This method is recommended for readers who only need to build a cross-compilation tool cha
Label:1.php code does not end in the introduction or ensures that there are no spaces after the end to ensure that PHP is included without being output "prevent headers and session_start () from controlling the output"In essence, it is important to note that there is no space before the output cache control and PHP start tagVerification code This function requires header and session two functions "especially need to pay attention to the problem of output""Summary: Prevent problems with some outp
following code
1 @AssemblyFile .\ConvertHelper1.cs2
Okay, the climax is coming. Check the Code in line 2: Use the @ AssemblyFile command to introduce the CS file generated in one step. The following is the relative path of the file. Note that only relative paths are allowed, and absolute paths are not allowed.
Okay, now let's look at the 5th lines of code. What do you see after @ ConvertHelp1? Are there any smart prompts? Nothing ?!. What's wrong?
The cause is found because the template file
We recommend that you use the command line download tool. The command line tool is not only easy to use, but also has a high download speed and download efficiency. It is especially suitable for downloading files in large batches. The following describes the Linux download tools Wget and Prozilla.
WgetLinux download tool Wget is a very common command line downloa
Uninstall Tool is an internationally renowned professional uninstall tool that supports the display of hidden installers, filters the list of installed programs by name, forcibly uninstalls programs, browses registry entries, and saves the list of installers, which is an excellent tool to replace the system "Add/Remove Programs". Here are 8844 to introduce the fu
Not only does Spring provide a full-featured application development framework, but it also has a number of tool classes that you can use directly when you write a program, not only in spring applications but also in other applications, most of which can be detached from spring The frame is used. Knowing what handy tool classes are available in Spring and using them appropriately when you write them will he
CSharp database code generation tool and csharp Generation Tool
There are many projects with many database table fields in the project, and I don't know when to press it one by one. I think it's a sudden whim to make a tool for all and for all. It took me one night to write this thing, and the code was messy. It took a lot of time to use this
Win8 professional activation tool _ KMSAuto Net 2015 (win7/win8/win10 activation tool)
KMSAuto Net 2015 Green Edition automatic KMS solution activates the following operating systems: Windows Vista, win7, win8, win8.1, Server R2, R2 VL and retail versions. It also supports Office VL. In addition, the program can be activated:
Win8 professional activation Tool
Use php debugging tool-XDebug and php debugging tool xdebug. Use php debugging tool-XDebug. use windows platform and AptanaStudio as an example to introduce the use of XDdebug. 1. install XDebug1) Download php XDebug extension. dll file php debugging tool-use XDebug, php debugging
DSYM file analysis tool and dsym analysis tool
After arriving at the new company, I have been busy some time ago. Recently, the project was successfully released and launched. Recently, I have been optimizing the project and eliminating some bugs in online software, because umeng statistics are used in the project, the error information statistics provided by umeng can be used to easily find the client exce
Web Front-end debugging tool-magic Console and debugging tool console
Preface
First: I do not know how many people found that Baidu's recruitment information on the Baidu homepage on the "Console" of the browser development tool:
Today, we will introduce the Console panel in the Web Front-end debugging tool. I
Codedom assistant powerful codedom tool. Some bugs have been fixed and sent to codeplex. You can check if you need it.
I. First compilation and adjustment Code 2. I will use this tool to fix the problem of generating codedom code for generics. If you need to modify the code, it will be modified and improved in time. If you are interested, you can participate. Http://codedomassistant.codeplex.com/Generating
The layout and design of the interface is involved in the VS2010+C#+WPF development project, and it is quite convenient for someone on the web to use Expression Design 4 and the Expression Blend 4 tool.So decided to take a look at the following to share this process with you.First, the purpose of installationAlthough programmers can construct the user interface in a way that uses vs to write XAML code, for a user with a design interest, using an expression suite like Photoshop canMaximum softwar
PHP Implements Web caching tool class sharing, PHP Web caching tool class
When the PHP program is resistant to high-traffic access, dynamic sites are often difficult to parry, so introduce a caching mechanism that typically has two types of caches
First, the file cache
Second, the data query result cache, using memory to implement the cache
This example uses the file cache primarily.
The main principle is
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