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When using an inline data declaration inside of a SELECT...ENDSELECT block or SELECT SINGLE statement, the @ character must be used as an escape character for the DATA(lv_cityto) expression. Once the escape character has been used, all further host variables must also be escaped (as is the case with...

let map f list = let rec loop acc = function | [] -> List.rev acc | head :: tail -> loop (f head :: acc) tail loop [] list The signature of this function is ('a -> 'b) -> 'a list -> 'b list, which is the most generic it can be. This does not p...

When we refer the module in the code, node first looks up the node_module folder inside the referenced folder in required statement If the module name is not relative and is not a core module, Node will try to find it inside the node_modules folder in the current directory. For instance, if you do...

This example consists of three parts: server.py - CherryPy application that can receive and save a file. webpage.html - Example how to upload a file to server.py from a webpage. cli.py - Example how to upload a file to server.py from a command line tool. Bonus - upload.txt - file that you will...

Lazy loading modules helps us decrease the startup time. With lazy loading our application does not need to load everything at once, it only needs to load what the user expects to see when the app first loads. Modules that are lazily loaded will only be loaded when the user navigates to their routes...

An example on how to compose the reader, writer, and state monad using monad transformers. The source code can be found in this repository We want to implement a counter, that increments its value by a given constant. We start by defining some types, and functions: newtype Counter = MkCounter {...

Each schema provides you with an overwhelming amount of information about each record type. It is important to know how to break down all of this information. At the top of the schema is the name of the Record Type followed by the Internal ID of the record type; this internal ID is the programmatic...

You can pass an array to the style prop to apply multiple styles. When there is a conflict, the last one in the list takes precedence. import React, { Component } from 'react'; import { View, Text, StyleSheet } from 'react-native'; const styles = StyleSheet.create({ red: { color: ...

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. ...

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,...

Loading from string Use simplexml_load_string to create a SimpleXMLElement from a string: $xmlString = "<?xml version='1.0' encoding='UTF-8'?>"; $xml = simplexml_load_string($xmlString) or die("Error: Cannot create object"); Note that or not || must be used here becau...

Despite you can write a binary number in C++14 like: int number =0b0001'0101; // ==21 here comes a famous example with a self-made implementation for binary numbers: Note: The whole template expanding program is running at compile time. template< char FIRST, char... REST > struct binary {...

A broadcast join copies the small data to the worker nodes which leads to a highly efficient and super-fast join. When we are joining two datasets and one of the datasets is much smaller than the other (e.g when the small dataset can fit into memory), then we should use a Broadcast Hash Join. The f...

To add a background-image rule via the CSSOM, first get a reference to the rules of the first stylesheet: var stylesheet = document.styleSheets[0].cssRules; Then, get a reference to the end of the stylesheet: var end = stylesheet.length - 1; Finally, insert a background-image rule for the bo...

The ClassLoader needs to provide a ProtectionDomain identifying the source of the code: public class PluginClassLoader extends ClassLoader { private final ClassProvider provider; private final ProtectionDomain pd; public PluginClassLoader(ClassProvider provider) { this...

import cv2 import numpy as np import urllib stream=urllib.urlopen('http://96.10.1.168/mjpg/video.mjpg') bytes='' while True: bytes+=stream.read(1024) a = bytes.find('\xff\xd8') # JPEG start b = bytes.find('\xff\xd9') # JPEG end if a!=-1 and b!=-1: jpg = bytes[a:b+...

In your Maven project, add the following to your pom.xml file. The following versions are for Cassandra 3.x. <dependency> <groupId>com.datastax.cassandra</groupId> <artifactId>cassandra-driver-core</artifactId> <version>3.1.0</ve...

We can use the get_bloginfo function to retrieve the email address of the site administrator. <?php echo get_bloginfo('admin_email'); ?>

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...

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...