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To add for instance a directory scripts to the distribution package: Add to the project a folder scripts On top of the build.sbt, add: import NativePackagerHelper._ In build.sbt, add a mapping to the new directory: mappings in Universal ++= directory("scripts") B...

It's quite common to want to check the status of the various partitions/drives on your server/computer to see how full they are. The following command is the one you'll want to run: df -h This will produce output similar to the following: [root@mail ~]# df -h Filesystem Size Used A...

Occasionally you will want to access the result of your filters from outside the ng-repeat, perhaps to indicate the number of items that have been filtered out. You can do this using as [variablename] syntax on the ng-repeat. <ul> <li ng-repeat="item in vm.listItems | filter:vm.myF...

The x64 architecture is the evolution of the older x86 architecture, it kept compatibility with its predecessor (x86 registers are still available) but it also introduced new features: Registers have now a capacity of 64 bits; There are 8 more general-purpose registers; Segment registers are fo...

RefreshControl is used inside a ScrollView or ListView to add pull to refresh functionality. at this example we will use it with ListView 'use strict' import React, { Component } from 'react'; import { StyleSheet, View, ListView, RefreshControl, Text } from 'react-native' class RefreshContr...

Because Julia function parameter lists are themselves tuples, dispatching on various kinds of tuples is often easier done through the method parameters themselves, often with liberal usage for the "splatting" ... operator. For instance, consider the implementation of reverse for tuples, fr...

The IIF statement can be used in expressions to screen for division by zero: =IIF(Fields!PossibleZero.Value=0,0,Fields!Denominator.Value/IIF(Fields!PossibleZero.Value=0,1,Fields!PossibleZero.Value)) SSRS does not short circuit IIF arguments. Therefore, using a single IIF function to screen for ...

Given a CLLocationDistance (simply a Double representing meters), output a user-readable string: let distance = CLLocationDistance(42) let formatter = MKDistanceFormatter() let answer = formatter.stringFromDistance(distance) // answer = "150 feet" Objective-C CLLocationDistance dis...

import Mapkit Set units to one of .Default, .Metric, .Imperial, .ImperialWithYards: formatter.units = .Metric var answer = formatter.stringFromDistance(distance) // "40 m" formatter.units = .ImperialWithYards answer = formatter.stringFromDistance(distance) // "50 yards" ...

Setup Install AWS CLI AWS CLI is an common CLI tool for managing the AWS resources. With this single tool we can manage all the aws resources sudo apt-get install -y python-dev python-pip sudo pip install awscli aws --version aws configure Bash one-liners cat <file> # output a file ...

List of commonly used S3 AWS CLI Commands Create Bucket aws s3 mb s3://bucket-name Remove Bucket aws s3 rb s3://bucket-name List Buckets aws s3 ls List contents inside the bucket aws s3 ls s3://bucket-name List Bucket with a path aws s3 ls s3://bucket-name/path Copy file aws s3...

Almost every application has some kind of a list. Ionic has it's own build-in ready-to-go list item CSS declarations to make it easy to do lists inside your application. You can either use HTML elements and declare a class for the or use the directive ion-list to make them. Example of a directive is...

By default the ArrayAdapter creates a view for each array item by calling toString() on each item and placing the contents in a TextView. Example: ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, myStringArray); where androi...

sed -i -e cmd file will modify file even if its permissions are set to read-only. This command behaves similarly to sed -e cmd file > tmp; mv -f tmp file rather than sed -e cmd file > tmp; cat tmp > file; rm tmp The following example uses gnu sed: $ echo 'Extremely important data' &gt...

VI snippets are like Screenshots of a Block Diagram, with one important difference. They can be opened in LabVIEW to reconstruct the orginal program. They are saved in the common .PNG format so they can be used like normal pictures e.g. in forums and on StackOverflow. To create a VI snippet mark th...

The wxWidgets project has adopted the release model used by the Linux Kernel project where there are alternating sets of releases where one set are considered "stable" and the next set are considered "development." For wxWidgets "stable" and "development" do n...

This topic demonstrates how to use functions like withColumn, lead, lag, Level etc using Spark. Spark dataframe is an sql abstract layer on spark core functionalities. This enable user to write SQL on distributed data. Spark SQL supports hetrogenous file formats including JSON, XML, CSV , TSV etc. ...

const Promise = require('bluebird'), fs = require('fs') Promise.promisifyAll(fs) // now you can use promise based methods on 'fs' with the Async suffix fs.readFileAsync('file.txt').then(contents => { console.log(contents) }).catch(err => { console.error('error reading', er...

Example of map: Promise.resolve([ 1, 2, 3 ]).map(el => { return Promise.resolve(el * el) // return some async operation in real world }) Example of filter: Promise.resolve([ 1, 2, 3 ]).filter(el => { return Promise.resolve(el % 2 === 0) // return some async operation in real world...

This example shows the simplest usage of the Image component to display an image. The Image source property is a url type that can be either a file with an absolute or relative path, an internet URL (http://) or a Qt resource (qrc:/) import QtQuick 2.3 Rectangle { width: 640 height: 4...