Tutorial by Examples: l

You can parse XML from a string or from a XML file 1. From a string $xml_obj = simplexml_load_string($string); 2. From a file $xml_obj = simplexml_load_file('books.xml'); Example of parsing Considering the following XML: <?xml version="1.0" encoding="UTF-8"?> &l...

var x = 5; var str = "if (x == 5) {console.log('z is 42'); z = 42;} else z = 0; "; console.log("z is ", eval(str)); The use of eval is strongly discouraged. See the Remarks section for details.

Objective-C First go the Target->Capabilities and enable HealthKit. This would setup the info.plist entry. Make a new CocoaClass of type NSObject The filename I gave is GSHealthKitManager and the header file is as shown below GSHealthKitManager.h #import <Foundation/Foundation.h> #imp...

import { NgModule, CUSTOM_ELEMENTS_SCHEMA } from '@angular/core'; import { CommonModule } from '@angular/common'; import { AboutComponent } from './about.component'; @NgModule({ imports: [ CommonModule ], declarations: [ AboutComponent ], exports: [ AboutComponent ], schemas...

import { Component } from '@angular/core'; @Component({ selector: 'myapp-about', template: `<my-webcomponent></my-webcomponent>` }) export class AboutComponent { }

Installation $ npm install gulp-jslint --save-dev Usage In gulpfile.js add: var gulp = require('gulp'); var jslint = require('gulp-jslint'); gulp.task('lint', function(){ return gulp.src(['source.js']) .pipe(jslint({ /* this object represents the JSLint directives being passe...

Objective-C Create a new iOS project and add CoreSpotlight and MobileCoreServices framework to your project. Create the actual CSSearchableItem and associating the uniqueIdentifier, domainIdentifier and the attributeSet. Finally index the CSSearchableItem using [[CSSearchableIndex defaul...

Aggregation is used to perform complex data search operations in the mongo query which can't be done in normal "find" query. Create some dummy data: db.employees.insert({"name":"Adma","dept":"Admin","languages":["german","f...

This is an example code to create and execute the aggregate query in MongoDB using Spring Data. try { MongoClient mongo = new MongoClient(); DB db = mongo.getDB("so"); DBCollection coll = db.getCollection("employees"); //Equivalent to $m...

When defining a new trait it is possible to enforce that types wishing to implement this trait verify a number of constraints or bounds. Taking an example from the standard library, the DerefMut trait requires that a type first implement its sibling Deref trait: pub trait DerefMut: Deref { fn...

import pygame file = 'some.mp3' pygame.init() pygame.mixer.init() pygame.mixer.music.load(file) pygame.mixer.music.play(-1) # If the loops is -1 then the music will repeat indefinitely.

import pygame import time pygame.mixer.init() pygame.display.init() screen = pygame.display.set_mode ( ( 420 , 240 ) ) playlist = list() playlist.append ( "music3.mp3" ) playlist.append ( "music2.mp3" ) playlist.append ( "music1.mp3" ) pygame.mixer.musi...

To install PHP on Ubuntu, first install the Redis server: sudo apt install redis-server then install the PHP module: sudo apt install php-redis And restart the Apache server: sudo service apache2 restart

Preparing data: create table wf_example(i int, t text,ts timestamptz,b boolean); insert into wf_example select 1,'a','1970.01.01',true; insert into wf_example select 1,'a','1970.01.01',false; insert into wf_example select 1,'b','1970.01.01',false; insert into wf_example select 2,'b','1970.01.01...

Maya supports 3 main programming environments. Each has different setup requirements. MEL MEL scripting language is included with the Maya application. Enabled by default, users can test MEL in the script listener window in a running copy of Maya. MEL files are text files with the extension .mel...

The partition of an integer is a way of writing it as a sum of positive integers. For example, the partitions of the number 5 are: 5 4 + 1 3 + 2 2 + 2 + 1 2 + 1 + 1 + 1 1 + 1 + 1 + 1 + 1 Notice that changing the order of the summands will not create a different partition. The partition f...

public class IntegerPartition { public static int[,] Result = new int[100,100]; private static int Partition(int targetNumber, int largestNumber) { for (int i = 1; i <= targetNumber; i++) { for (int j = 1; j <= largestNumber; j++) ...

This is an example of using until/retries/delay to implement an alive check for a webapp that is starting up. It assumes that there will be some period of time (up to 3 minutes) where the webapp is refusing socket connections. After that, it checks the /alive page for the word "OK". It als...

For small functions that get called often, the overhead associated with the function call can be a significant fraction of the total execution time of that function. One way of improving performance, then, is to eliminate the overhead. In this example we use four functions (plus main()) in three so...

Go to the [https://developers.facebook.com/](https://developers.facebook.com/) and create your app. Click Add product and choose Facebook Login