Tutorial by Examples

The following code will attempt to execute loadFromHttp() up to 5 times (maxAttempts), with each attempt delayed by as many seconds. If maxAttempts is surpassed, the Observable gives up. // assume loadFromHttp() returns a Promise, which might fail. Rx.Observable.from(loadFromHttp()) ....

Dictionaries can be constructed by passing it any number of pairs. julia> Dict("A"=>1, "B"=>2) Dict{String,Int64} with 2 entries: "B" => 2 "A" => 1 You can get entries in a dictionary putting the key in square brackets. julia> dic...

Converting date and time strings to numeric arrays can be done with datenum, though it may take as much as half the time of reading a large data file. Consider the data in example Textscan. By, again, using textscan and interpret date and time as integers, they can rapidly be converted into a numer...

Windows AppBuilder In the Windows Appbuilder the Application Compiler is found in the Tools Menu. Procedure Editor (Linux - pro or Windows pro.exe In the Procedure Editor (both Linux and Windows) the Compiler if found in the Tools menu. Application Compiler Regardless of OS the function...

The compile statement lets you compile programs in Progress ABL: Basic usage: COMPILE hello-world.p SAVE. With a variable: DEFINE VARIABLE prog AS CHARACTER NO-UNDO. prog = "hello.p". COMPILE VALUE(prog) SAVE. There are several options to the COMPILE-statement: SAVE state...

Safari To return the URL of the current tab in Safari, use URL of current tab: tell application "Safari" return URL of current tab of window 1 end tell Google Chrome To return the URL of the current tab in Google Chrome, use URL of active tab: tell application "Google Chr...

Using async/await in C# applications simplifies multi-threading. This is how you can use async/await in conjunction with a TcpClient. // Declare Variables string host = "stackoverflow.com"; int port = 9999; int timeout = 5000; // Create TCP client and connect // Then get the netstr...

See the download page to manually download and unpack the latest version, or follow the links below: spring-boot-cli-1.5.1.RELEASE-bin.zip spring-boot-cli-1.5.1.RELEASE-bin.tar.gz

$ brew tap pivotal/tap $ brew install springboot

$ sudo port install spring-boot-cli

SDKMAN! is the Software Development Kit Manager for Java. It can be used to install and manage versions of the Spring Boot CLI as well as Java, Maven, Gradle, and more. $ sdk install springboot

XML file: <ViewFlipper android:id="@+id/viewflip" android:layout_width="match_parent" android:layout_height="250dp" android:layout_weight="1" /> JAVA code: public class BlankFragment extends Fragment{ ViewFlipper viewFl...

Button API provides an easy way to assign common keyboard shortcuts to buttons without the need to access accelerators' list assigned to Scene or explicitly listening to the key events. Namely, two convenience methods are provided: setDefaultButton and setCancelButton: Setting setDefaultButton ...

Detailed instructions on getting gmail-api set up or installed.

BigDecimal provides static properties for the numbers zero, one and ten. It's good practise to use these instead of using the actual numbers: BigDecimal.ZERO BigDecimal.ONE BigDecimal.TEN By using the static properties, you avoid an unnecessary instantiation, also you've got a literal in you...

The LineChart class presents the data as a series of data points connected with straight lines. Each data point is wrapped in XYChart.Data object, and the data points are grouped in XYChart.Series. Each XYChart.Data object has two fields, which can be accessed using getXValue and getYValue, that co...

/** * Save the results from the saved search as .csv and store in file cabinet * Get the file's internal id when loading the file * Use \n to process each row * Get the internal id and whatever columns that need updating * Create a filtered search and pass the internal id * If the passe...

If you have the following data file cat data.csv 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 maybe you need to read the fourth column of the third line, this would be "24" awk 'NR==3 ...

This example illustrates how to plot a time series of temperature from a csv data file. library(ggplot2) # Original data not provided, see subset/plotted data below datos.orig<-read.csv("data.csv",header=TRUE) # read csv data # Change dates to POSIXct fecha<-as.data.frame(a...

Parent Component : Initialize users lists. @Component({ selector: 'parent-component', template: '<div> <child-component [users]="users"></child-component> </div>' }) export class ParentComponent implements OnInit{ let users...