Tutorial by Examples: r

To create a Hello World plug-in for Eclipse, click: File ➜ New ➜ Other... Select Plug-in Project and click Next > The New Plug-in Project wizard will guide you through the options for creating a new plug-in. Enter a project name (like HelloWorld), and click Next > On the Content pag...

For a non-main packages as well as main, instead of adding flags inside the code, write benchmarks in the test package , for example: func BenchmarkHello(b *testing.B) { for i := 0; i < b.N; i++ { fmt.Sprintf("hello") } } Then run the test with the profile flag ...

once a prof file has been generated, one can access the prof file using go tools: go tool pprof cpu.prof This will enter into a command line interface for exploring the profile Common commands include: (pprof) top lists top processes in memory (pprof) peek Lists all processes, use reg...

app/controllers/myname.js app/templates/myname.hbs app/routes/myname.js app/models/myname.js Using pods, the example above would translate into this: app/myname/controller.js app/myname/template.hbs app/myname/route.js app/myname/model.js

ember generate route foo --pod installing create app/pods/foo/route.js create app/pods/foo/template.hbs installing create tests/unit/pods/foo/route-test.js

var gulp = require('gulp'); // include plug-ins var uglify = require('gulp-uglify'), concat = require('gulp-concat'); // Minified file gulp.task('packjsMin', function() { return gulp.src('node_modules/angular/*.js') .pipe(concat('script.js')) .pipe(uglify()) .p...

Printing "hello world" on several languages on Maya on the console (Script Editor). MEL On a MEL tab on the Script Editor, or the command line bar, selecting MEL: print ("hello world"); And hit play on the script editor or enter key on the command line. PYTHON On a Python...

You can use docker, without using docker daemon (engine), by using cloud providers. In this example, you should have a gcloud (Google Cloud util), that connected to your account docker-machine create --driver google --google-project `your-project-name` google-machine-type f1-large fm02 This exa...

grant all privileges on schema_name.* to 'new_user_name'@'%' identified by 'newpassword'; Attention: This can be used to create new root user

rename user 'user'@'%' to 'new_name`@'%'; If you create a user by mistake, you can change his name

DROP TABLE Database.table_name

Given an m times n matrix A with n larger than m. The singular value decomposition [U,S,V] = svd(A); computes the matrices U,S,V. The matrix U consists of the left singular eigenvectors which are the eigenvectors of A*A.' while V consists of the right singular eigenvalues which are the eigenvec...

You might receive from your peer private key in PPK format, which seems it does not work in OpenSSH (command-line ssh). The client will be asking for the passphrase, because of OpenSSH bug. $ ssh -i mykey.ppk example.com Enter passphrase for mykey.ppk: You need to convert the key to OpenSSH for...

Visual Basic.NET, like most languages, permits recursion, a process by which a function calls itself under certain conditions. Here is a basic function in Visual Basic .NET to compute Fibonacci numbers. ''' <summary> ''' Gets the n'th Fibonacci number ''' </summary> ''' <param na...

request variables form url cgi

This function shortens the text to a specified number of words and returns the shortened text. <?php echo wp_trim_words( get_the_content(), 40, '...' ); ?> In the above example we are passing the post content to the function. It will restrict the length of the content to 40 words and will ...

Developers can use admin_bar_menu action to remove items from WordPress admin bar or toolbar. add_action('admin_bar_menu', 'remove_wp_logo_from_admin_bar', 999); function remove_wp_logo_from_admin_bar( $wp_admin_bar ) { $wp_admin_bar->remove_node('wp-logo'); } Above code removes WordPr...

You can also use Laravel Artisan commands from your routes or controllers. To run a command using PHP code: Artisan::call('command-name'); For example, Artisan::call('db:seed');

If an integer x is a power of 2, only one bit is set, whereas x-1 has all bits set after that. For example: 4 is 100 and 3 is 011 as binary number, which satisfies the aforementioned condition. Zero is not a power of 2 and has to be checked explicitly. boolean isPowerOfTwo(int x) { return (x ...

There are two kinds of persistent storage modes in Redis: AOF and RDB. To temporarily disable RDB execute the following commands on the Redis command line: config set save "" to temporarily disable AOF execute the following from the Redis command line: config set appendonly no The...