Tutorial by Examples: me

Right after you install Git, the first thing you should do is set your username and email address. From a shell, type: git config --global user.name "Mr. Bean" git config --global user.email [email protected] git config is the command to get or set options --global means that the ...

Defines an <initially-hidden> custom element which hides its contents until a specified number of seconds have elapsed. const InitiallyHiddenElement = document.registerElement('initially-hidden', class extends HTMLElement { createdCallback() { this.revealTimeoutId = null; } at...

It's possible to extent native elements, but their descendants don't get to have their own tag names. Instead, the is attribute is used to specify which subclass an element is supposed to use. For example, here's an extension of the <img> element which logs a message to the console when it's l...

a = 1 - Math.abs(1 - a % 2); // This will throw an error if my arithmetic above is wrong. assert a >= 0 && a <= 1 : "Calculated value of " + a + " is outside of expected bounds"; return a;

curl -X POST https://api.dropboxapi.com/2/sharing/add_folder_member \ --header "Authorization: Bearer <ACCESS_TOKEN>" \ --header "Content-Type: application/json" \ --data "{\"shared_folder_id\": \"<SHARED_FOLDER_ID\",\"members...

let toInvite = [Sharing.AddMember(member: Sharing.MemberSelector.Email("<EMAIL_ADDRESS_TO_INVITE>"))] Dropbox.authorizedClient!.sharing.addFolderMember(sharedFolderId: "<SHARED_FOLDER_ID>", members: toInvite).response { response, error in if (response != nil...

Dropbox.authorizedClient!.files.getMetadata(path: "/test.jpg", includeMediaInfo: true).response { response, error in if let result = response as? Files.FileMetadata { print(result.name) if result.mediaInfo != nil { switch result.mediaInfo! as Files.Med...

curl -X POST https://api.dropboxapi.com/2/files/get_metadata \ --header "Authorization: Bearer <ACCESS_TOKEN>" \ --header "Content-Type: application/json" \ --data "{\"path\": \"/test.jpg\",\"include_media_info\": true}&quot...

5.1 When you take a reference to a method (a property which is a function) in JavaScript, it usually doesn't remember the object it was originally attached to. If the method needs to refer to that object as this it won't be able to, and calling it will probably cause a crash. You can use the .bind...

The idea of bound and unbound methods was removed in Python 3. In Python 3 when you declare a method within a class, you are using a def keyword, thus creating a function object. This is a regular function, and the surrounding class works as its namespace. In the following example we declare method ...

if [[ $1 -eq 1 ]]; then echo "1 was passed in the first parameter" elif [[ $1 -gt 2 ]]; then echo "2 was not passed in the first parameter" else echo "The first parameter was not 1 and is not more than 2." fi The closing fi is necessary, but the eli...

Supplying pow() with 3 arguments pow(a, b, c) evaluates the modular exponentiation ab mod c: pow(3, 4, 17) # 13 # equivalent unoptimized expression: 3 ** 4 % 17 # 13 # steps: 3 ** 4 # 81 81 % 17 # 13 For built-in types using modular exponentiation is only possible...

import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.SwingUtilities; public class FrameCreator { public static void main(String args[]) { //All Swing actions should be run on the Event Dispatch Thread (EDT) //Calling SwingUtilities.invokeLater ma...

import java.awt.FlowLayout; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.SwingUtilities; public class CustomFrame extends JFrame { private static CustomFrame statFrame; public CustomFrame(String labelText) { setSize(500, 500); ...

Using the AdvancedRTFEditorKit library you can serialize a DefaultStyledDocument to an RTF string. try { DefaultStyledDocument writeDoc = new DefaultStyledDocument(); writeDoc.insertString(0, "Test string", null); AdvancedRTFEditorKit kit = new AdvancedRTFEditorKit(); ...

Functions can take parameters so that their functionality can be modified. Parameters are given as a comma separated list with their types and names defined. func magicNumber(number1: Int) { print("\(number1) Is the magic number") } Note: The \(number1) syntax is basic String I...

A data.frame is a special kind of list: it is rectangular. Each element (column) of the list has same length, and where each row has a "row name". Each column has its own class, but the class of one column can be different from the class of another column (unlike a matrix, where all elemen...

This is how to send an SMS text message from a US number using Twilio's Node.js SDK. First you need to install the Node.js client using: npm install twilio Then, you have to create an account on their website. Once you have an account, you'll need the account SID and auth token that you can fi...

Undoing a merge not yet pushed to a remote If you haven't yet pushed your merge to the remote repository then you can follow the same procedure as in undo the commit although there are some subtle differences. A reset is the simplest option as it will undo both the merge commit and any commits add...

require Exporter; This will ensure that the Exporter module is loaded at runtime if it hasn't already been imported. (See also: perldoc -f require.) N.B.: Most users should use modules rather than require them. Unlike use, require does not call the module's import method and is executed at runti...