This uses the Dropbox Java SDK to download a file from the Dropbox API at the remote path /Homework/math/Prime_Numbers.txt to the local file Prime_Numbers.txt:
String localPath = "Prime_Numbers.txt";
OutputStream outputStream = new FileOutputStream(localPath);
FileMetadata metadata = cl...
Many real-world database tables have many rows with DATETIME OR TIMESTAMP column values spanning a lot of time, including years or even decades. Often it's necessary to use a WHERE clause to retrieve some subset of that timespan. For example, we might want to retrieve rows for the date 1-September-2...
// Set up Express
var express = require('express');
var app = express();
// Serve static assets from both 'public' and 'files' directory
app.use(express.static('public');
app.use(express.static('files');
// Start Express server
app.listen(3030);
// Set up Express
var express = require('express');
var app = express();
// Specify mount path, '/static', for the static directory
app.use('/static', express.static('public'));
// Start Express server
app.listen(3030);
// Set up Express
var express = require('express');
var app = express();
// Serve files from the absolute path of the directory
app.use(express.static(__dirname + '/public'));
// Start Express server
app.listen(3030);
// Set up Express
var express = require('express');
var app = express();
/* Serve from the absolute path of the directory that you want to serve with a
*/ virtual path prefix
app.use('/static', express.static(__dirname + '/public'));
// Start Express server
app.listen(3030);
Two of the most fundamental higher-order functions included in the standard library are map and filter. These functions are generic and can operate on any iterable. In particular, they are well-suited for computations on arrays.
Suppose we have a dataset of schools. Each school teaches a particular...
You can use the IFA for measuring ad clicks and the IFV for measuring
app installs.
IFA has built-in privacy mechanisms that make it
perfect for advertising. In contrast, the IFV is for developers to
use internally to measure users who install their apps.
IFA
ASIdentifierManager class pr...
A lot of example code posted on StackOverflow includes snippets like this:
if ("A".equals(someString)) {
// do something
}
This does "prevent" or "avoid" a possible NullPointerException in the case that someString is null. Furthermore, it is arguable that
...
- Without quotes:
You can just
split a long piece of text like this.
- With quotes:
"[But be careful:
if you \"need\" punctuation, put double quotes around it. You can ev\
en split without spaces by using backslashes."
- Or single quotes:
'This wor...
This is a simple trigger function.
CREATE OR REPLACE FUNCTION my_simple_trigger_function()
RETURNS trigger AS
$BODY$
BEGIN
-- TG_TABLE_NAME :name of the table that caused the trigger invocation
IF (TG_TABLE_NAME = 'users') THEN
--TG_OP : operation the trigger was fired
IF (TG_O...
Design documents contain application logic. Any document in a database that has an _id starting with "_design/" can be used as design document. Usually there is one design document for each application.
{
"_id": "_design/example",
"view": {
...
All programming languages allow us to assign values to variables. Usually, a value is assigned to variable, standing on left side. The prototype of the overall assignment operations in any contemporary programming language looks like this:
left_operand assignment_operand right_operand instructions_...
// PixelAccessTutorial.cpp : Defines the entry point for the console
// Environment: Visual studio 2015, Windows 10
// Assumptions: Opecv is installed configured in the visual studio project
// Opencv version: OpenCV 3.1
#include "stdafx.h"
#include<opencv2/core/core.hpp>
#i...
For live plnkr click...
<!doctype html>
<html>
<head>
<title>ng for loop in angular 2 with ES5.</title>
<script type="text/javascript" src="https://code.angularjs.org/2.0.0-alpha.28/angular2.sfx.dev.js"></script>
<scr...
It's also possible to use selectors together. This is done by using the OpenQA.Selenium.Support.PageObjects.ByChained object:
element = driver.FindElement(new ByChained(By.TagName("input"), By.ClassName("class"));
Any number of Bys can be chained and are used as an AND type ...
Here is the JSON Structure we are going to use.
{
"employees": [
{
"firstName": "John",
"lastName": "Doe",
"skills": [
{
"name": "javascript",
"rating&quo...
Taggy-lens allows us to use lenses to parse and inspect HTML documents.
#!/usr/bin/env stack
-- stack --resolver lts-7.0 --install-ghc runghc --package text --package lens --package taggy-lens
{-# LANGUAGE OverloadedStrings #-}
import qualified Data.Text.Lazy as TL
import qualified Data.Tex...
