Tutorial by Examples: le

This example illustrates how Go's type system can be used to implement some unit system. package main import ( "fmt" ) type MetersPerSecond float64 type KilometersPerHour float64 func (mps MetersPerSecond) toKilometersPerHour() KilometersPerHour { return KilometersPer...

Adding 3DoF Controllers Controllers with 3 degrees of freedom (3DoF) are limited to rotational tracking. 3DoF controllers have no positional tracking meaning we can’t reach out nor move our hand back-and-forth or up-and-down. Having a controller with only 3DoF is like having a hand and wrist withou...

A convenient way to package your application is to write the scripts in your packages.json file and run them with the npm run command { "name": "AppName", "productName": "AppName", "version": "0.1.1", "main": ...

Install properties reader: npm install properties-reader --save Create a directory env to store your properties files: mkdir env Create environments.js: process.argv.forEach(function (val, index, array) { var arg = val.split("="); if (arg.length > 0) { ...

Let's assume we have a search results page that displays a user's search query back to them. The code below is an example of how this could be done in PHP: Results for "<?php echo $_GET['query'] ?>" For this to work, you would access the page with a URL like: https://yoursite.te...

This example illustrates how to create a simple sine curve using Matplotlib # Plotting tutorials in Python # Launching a simple plot import numpy as np import matplotlib.pyplot as plt # angle varying between 0 and 2*pi x = np.linspace(0, 2.0*np.pi, 101) y = np.sin(x) ...

In this example, we take a sine curve plot and add more features to it; namely the title, axis labels, title, axis ticks, grid and legend. # Plotting tutorials in Python # Enhancing a plot import numpy as np import matplotlib.pyplot as plt x = np.linspace(0, 2.0*np.pi, 101) y = np.sin(x) ...

In this example, a sine curve and a cosine curve are plotted in the same figure by superimposing the plots on top of each other. # Plotting tutorials in Python # Adding Multiple plots by superimposition # Good for plots sharing similar x, y limits # Using single plot command and legend import...

Similar to the previous example, here, a sine and a cosine curve are plotted on the same figure using separate plot commands. This is more Pythonic and can be used to get separate handles for each plot. # Plotting tutorials in Python # Adding Multiple plots by superimposition # Good for plots sha...

Fixed-width files are text files in which columns are not separated by any character delimiter, like , or ;, but rather have a fixed character length (width). Data is usually padded with white spaces. An example: Column1 Column2 Column3 Column4Column5 1647 pi 'important' ...

As recently Apple rolled out iOS11 and Xcode-9, we can now debug apps on devices without connecting devices to Xcode through USB. We can take advantage of wireless debugging feature added to this Xcode-9. To enable wireless debugging, we have to configure some steps in Xcode. 1 First connect the ...

#include <threads.h> #include <stdio.h> int run(void *arg) { printf("Hello world of C11 threads."); return 0; } int main(int argc, const char *argv[]) { thrd_t thread; int result; thrd_create(&thread, run, NULL); thrd_join(&...

In order to trigger a "upgradeneeded" event you need to request the database with version higher than the current version - otherwise the event won't be triggered. function createTable(dbName, dbversion, tableName) { var request = indexedDB.open(dbName, dbversion); request.onupgrade...

This is a more generic solution applicable in system where the user has option to add indexes to the table that he uses: function createTable(dbName, tableName) { var request = indexedDB.open(dbName); request.onsuccess = function (e){ var database = e.target.result; var version = p...

Suppose we have this source file that we would like to split: cat -n sourcefile 1 On the Ning Nang Nong 2 Where the Cows go Bong! 3 and the monkeys all say BOO! 4 There's a Nong Nang Ning 5 Where the trees go Ping! 6 And the tea pots jibber jabber joo. 7 On the Nong Ning Nang Comma...

Let's demonstrate the power of PLY with a simple example: this program will take an arithmetic expression as a string input, and attempt to solve it. Open up your favourite editor and copy the following code: from ply import lex import ply.yacc as yacc tokens = ( 'PLUS', 'MINUS', ...

There are two steps that the code from example 1 carried out: one was tokenizing the input, which means it looked for symbols that constitute the arithmetic expression, and the second step was parsing, which involves analysing the extracted tokens and evaluating the result. This section provides a ...

You can use get_results to get multiple rows from database. global $wpdb; $userTable =$wpdb->prefix."users"; $selectUser = $wpdb->get_results("SELECT * FROM $userTable"); This will show all users list in array.

You can get specific file using this function. get_template_part('template-parts/layout'); Include layout.php file from template-parts subdirectory placed in the root of your theme folder.

Enter command "tsc --init" and hit enter. Before that we need to compile ts file with command "tsc app.ts" now it is all defined in below config file automatically. Now, You can compile all typescripts by command "tsc". it will automatically create ".js&q...