Tutorial by Examples: c

To jump to a specific line with colon number. To jump to the first line of a file use :1 To jump to line 23 :23

ColumnColumn AExample formulaExample formulaRow 12Row 23Row 35=A1+A2=Sum(A1,A2)

You can call the CEE3DLY service in 24- 31- or 64- bit mode to delay a task to the nearest second. It is CICS save and will only delay the thread. An example: IDENTIFICATION DIVISION. PROGRAM-ID. SLEEPYTM. ENVIRONMENT DIVISION. DATA DIVISION. WORKING-STORAGE SECTION. ...

Before running gulp you need to install Node.JS and npm The head of the Gulp.js is: var gulp = require('gulp'); clean = require('gulp-clean'); // A gulp plugin for removing files and folders. imagemin = require('gulp-imagemin'); // Minify PNG, JPEG, GIF and SVG images Then assign path...

Before starting gulp we need to install node.js and npm. Then install gulp-sacc $ npm i gulp-sass --save-dev // i = install Gulp Head var gulp = require('gulp'); // Requires the gulp-sass plugin var sass = require('gulp-sass'); Gulp Body gulp.task('sass', function(){ return gulp.src('...

Use dynamic_cast<>() as a function, which helps you to cast down through an inheritance hierarchy (main description). If you must do some non-polymorphic work on some derived classes B and C, but received the base class A, then write like this: class A { public: virtual ~A(){} }; class B...

Objects like numbers, lists, dictionaries,nested structures and class instance objects live in your computer’s memory and are lost as soon as the script ends. pickle stores data persistently in separate file. pickled representation of an object is always a bytes object in all cases so one must ope...

Save data to and from file import pickle def save(filename,object): file=open(filename,'wb') pickle.dump(object,file) file.close() def load(filename): file=open(filename,'rb') object=pickle.load(file) file.close() return object >>>list_object=[1,...

Example Controller action use Symfony\Component\HttpFoundation\Request; public function exampleAction(Request $request) { /* * First you need object ready for validation. * You can create new object or load it from database. * You need to add some constraints for this obj...

Usually we are not using second parameter in select([$select = '*'[, $escape = NULL]]) in CodeIgniter. If you set it to FALSE, CodeIgniter will not try to protect your field or table names. In the following example, we are going to select the datetime type field by formatting it using sql query an...

Warning message: typings WARN deprecated 10/25/2016: "registry:dt/jasmine#2.5.0+20161003201800" is deprecated (updated, replaced or removed) Update the reference with: npm run typings -- install dt~jasmine --save --global Replace [jazmine] for any library that is throwing warning

A basic middleware is a function that takes 3 arguments request, response and next. Then by app.use, a middleware is mounted to the Express App Middlewares Stack. Request and response are manipulated in each middleware then piped to the next one through the call of next(). For example, the below c...

Installing Gulp and His Tasks $ npm install gulp --save-dev $ npm install gulp-sass --save-dev $ npm install gulp-uglify --save-dev $ npm install gulp-imagemin --save-dev Determining Folder Structure In this structure, we will use the app folder for development purposes, while the dist folde...

A function is a unit of code that represents a sequence of statements. Functions can accept arguments or values and return a single value (or not). To use a function, a function call is used on argument values and the use of the function call itself is replaced with its return value. Every functio...

import pandas as pd df = pd.DataFrame([{'var1': 'a,b,c', 'var2': 1, 'var3': 'XX'}, {'var1': 'd,e,f,x,y', 'var2': 2, 'var3': 'ZZ'}]) print(df) reshaped = \ (df.set_index(df.columns.drop('var1',1).tolist()) .var1.str.split(',', expand=True) .stack() .reset_ind...

#ifndef MYCOMPAREFILEDIALOG_H #define MYCOMPAREFILEDIALOG_H #include <QtWidgets/QDialog> class MyCompareFileDialog : public QDialog { Q_OBJECT public: MyCompareFileDialog(QWidget *parent = 0); ~MyCompareFileDialog(); }; #endif // MYCOMPAREFILEDIALOG_H

#include "MyCompareFileDialog.h" #include <QLabel> MyCompareFileDialog::MyCompareFileDialog(QWidget *parent) : QDialog(parent) { setWindowTitle("Compare Files"); setWindowFlags(Qt::Dialog); setWindowModality(Qt::WindowModal); resize(300, 100); ...

#include "mainwindow.h" #include "ui_mainwindow.h" #include "mycomparefiledialog.h" MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWindow) { ui->setupUi(this); myDialog = new MyCompareFileDialog(this); ...

#include "mainwindow.h" #include <QApplication> int main(int argc, char *argv[]) { QApplication a(argc, argv); MainWindow w; w.show(); return a.exec(); }

Liferay exposes many default and custom services available to other systems via JSON. To explore services on a particular liferay instance, use a given URL - A local instance in this case: http://localhost:8080/api/jsonws/ Select the required service, consume the service with the given syntax ...