WatchFirst introduce the Watch option, refer to here. The ability to update the Bundle.js file automatically after the related source file is changed.The watch function can be turned on by adding watch:true or performing webpack-w in the configuration file;The test found that all the JS, CSS and other modules related to (one or more) bundle.js changed, and the bundle.js files on the hard disk were automatically packaged and updated.Webpack-dev-serverW
Recently in the company to do Vue project, svn the front-end colleague's project code, install the environment, run the project (install the steps casually Baidu, very detailed), console error "' Webpack-dev-server ' is not an internal or external command, is not a running program or batch file, random Baidu solution, and some say the need to reload the dependency package, and some say that the extension of user rights, have done, but the error is sti
Dev C + + project does not have debug information workaround devc++4.9.9.2, press F8 to start debugging. The message is: The project has no debug information, do you want to open the debugging options for the project and regenerate it? Select Yes, then press F8, which is still the message. What's the reason? Follow the help, frequently asked Questions (FAQ) Prompt How do i enable debugging mode Go to Compiler Options an D Click on the Compiler s
Recently in the company to do Vue project, svn the front-end colleague's project code, install the environment, run the project (install the steps casually Baidu, very detailed), console error "' Webpack-dev-server ' is not an internal or external command, is not a running program or batch file, random Baidu solution, and some say the need to reload the dependency package, and some say that the extension of user rights, have done, but the error is sti
Recently in the company to do Vue project, svn the front-end colleague's project code, install the environment, run the project (install the steps casually Baidu, very detailed), console error "' Webpack-dev-server ' is not an internal or external command, is not a running program or batch file, random Baidu solution, and some say the need to reload the dependency package, and some say that the extension of user rights, have done, but the error is sti
Recently in the company to do Vue project, svn the front-end colleague's project code, install the environment, run the project (install the steps casually Baidu, very detailed), console error "' Webpack-dev-server ' is not an internal or external command, is not a running program or batch file, random Baidu solution, and some say the need to reload the dependency package, and some say that the extension of user rights, have done, but the error is sti
Recently in the company to do Vue project, svn the front-end colleague's project code, install the environment, run the project (install the steps casually Baidu, very detailed), console error "' Webpack-dev-server ' is not an internal or external command, is not a running program or batch file, random Baidu solution, and some say the need to reload the dependency package, and some say that the extension of user rights, have done, but the error is sti
Today, directly through the ADB shell Echo to the serial to write at data, obviously write echo at+b TEST >/dev/ttys1 went in, but the 3g module did not respond, this is what is going on. I use the wave quanta, as if there is data, but the module received is the normal response, to now do not know what is going on, super depressed AH. Prawns, look what's going on.
1. First post the initialization of the serial port:
void setcommattr (int rate) {printf
Open the kernel configuration entry config_i2c_chardev and load the I2c-dev module.
Device node:/dev/i2c-x.
User space accesses any I2C device mounted to the I2C adapter through the device node.
The Read/write function of the I2c-dev module does not support block transport, which transmits up to 8 bytes of data at a time.
Modifying the Read/write function suppor
Today with
NPM Install Grunt-cmd-transport--save-dev
This command installed the SEAJS built grunt plugin, do not know what the--save-dev parameters mean, check the data, recorded in this
General NPM installed Grunt plugin There are 2 ways, one is written in the Package.json devdependencies, and then directly execute NPM install can be
Another way to do this is to know the name of plugin first and then i
Today with
NPM Install Grunt-cmd-transport--save-dev
This command installs the Seajs build grunt plugin, do not know what the--save-dev parameter means, check the following information, recorded in this
There are 2 ways to install grunt plugin in NPM, one is to write in Package.json devdependencies first, then execute NPM install directly.
Another way to do this is to first know the name of plugin, and
Tags: physical partition Division LVM Encounter small problemsCan ' t open/dev/sdb1 exclusively. Mounted filesystem?This is a common problem that everyone divides LVM on the physical partition.This time I also encountered this problem when we try to first try to1, df-h display also did not mount2, then suspect may be the problem of the folder input: Partprobe, to create a folderAnd then in the second pvcreate/dev
The size of the Linux default (CentOS)/DEV/SHM partition is 50% of the system's physical memory, although the use of/DEV/SHM is much more efficient for file operations.However, it is seldom used in the current release software (except for Oracle mentioned earlier) and can be viewed through LS/DEV/SHM to see if there are any files below, and if not, the current sy
Webpack-dev-server is a small Node.js Express server, we can build a local server, and implement file hot update;1. Switch to your directory to initialize the projectAfter a enter,yes we will get Package.json file (Ps:json can not write comments, do not copy the past directly with AO!){ "Name": "Webpack_demo", //project name "Version": "1.0.0", //version number "description": "", //Description "Main": "Index.js", //import file "Scripts": { "Test":
First let's get to know, what is Tmpfs and/dev/shm/?
TMPFS is a memory-based file system on the Linux/unix system. TMPFS can use your memory or swap partitions to store files. This shows that TMPFS mainly stores the temporary files. It has the following 2 advantages:
1. The size of the dynamic file system.
2. Another major benefit of TMPFS is its lightning speed. Because a typical TMPFS file system resides completely in RAM, reading and writing can
Linux redirection 0, 1, and 2 represent standard input, standard output, and standard error message output, which can be used to specify the standard input or output that needs to be redirected.In general use, the default is the standard output, both 1. When we need special use, we can use other labels. For example, output a program's error message to the log file:./program 2>log. The standard output is still on the screen, but the error message is output to the log file.In addition, redir
An Introduction
/dev/shm/is the next most useful directory for Linux because it's not on the hard drive, it's in memory. Therefore, under Linux, there is no need for a lot of trouble to build RAMDisk, direct use of/dev/shm/can achieve a very good optimization effect. One of the/dev/shm/to note is the capacity problem, which, under Linux, defaults to a maximum of
Linux empty device file and redirection
Output/input redirection>>>
File descriptor (file descriptor), which is represented by a number (usually 0-9.Common file descriptors are as follows:Default file descriptor name0 standard input stdin keyboard1. stdout screen output2. stderr screen output due to standard errors
/Dev/null indicates an empty file device.1 indicates the system standard output. The default value is 1.>/
there is a device file FB * under/dev/. This is a special file of the character class.Code:Ls-L/dev/fb0 CrW-RW ---- 1 root video 29, 0 Jan 27 :32/dev/fb0If you do not have this file, you can also find other files such as/dev/Fb1,/dev/fb2.. If you cannot find these files, yo
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