Tutorial by Examples: ev

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...

curl -X POST https://api.dropboxapi.com/2/sharing/list_shared_links \ --header "Authorization: Bearer <ACCESS_TOKEN>" \ --header "Content-Type: application/json" \ --data "{\"path\": \"/test.txt\", \"direct_only\": true}&quo...

A reviver function can be used to filter or transform the value being parsed. 5.1 var jsonString = '[{"name":"John","score":51},{"name":"Jack","score":17}]'; var data = JSON.parse(jsonString, function reviver(key, value) { return ke...

Instance variables are unique for each instance, while class variables are shared by all instances. class C: x = 2 # class variable def __init__(self, y): self.y = y # instance variable C.x # 2 C.y # AttributeError: type object 'C' has no attribute 'y' c1 = C(3) c1....

Python 2.x2.2.0 New-style classes were introduced in Python 2.2 to unify classes and types. They inherit from the top-level object type. A new-style class is a user-defined type, and is very similar to built-in types. # new-style class class New(object): pass # new-style instance new = N...

Whenever a value in set in localStorage, a storage event will be dispatched on all other windows from the same origin. This can be used to synchronize state between different pages without reloading or communicating with a server. For example, we can reflect the value of an input element as paragrap...

import java.awt.FlowLayout; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JTextField; import javax.swing.SwingUtilities; public class CustomFrame extends JFrame { public CustomFrame(String labelText) { setSize(500...

Retrieve and Output a Cookie Named user The value of a cookie can be retrieved using the global variable $_COOKIE. example if we have a cookie named user we can retrieve it like this echo $_COOKIE['user'];

One of the most common tasks is retrieving an existing element from the DOM to manipulate. Most commonly these methods are executed on document, because it is the root node, but all these methods work on any HTML element in the tree. They will only return children from the node it is executed on. R...

Unlike classes, which are passed by reference, structures are passed through copying: first = "Hello" second = first first += " World!" // first == "Hello World!" // second == "Hello" String is a structure, therefore it's copied on assignment. Structu...

lsstat returns various summary stats per bucket for the specified field. The field must be numeric in elastic. rStat can be one of avg, min, max, sum, sum_of_squares, variance, std_deviation. The rest of the fields behave the same as lscount, except that there is no division based on bucketDuratio...

There are two types of events emitted by a Preferences object: PreferenceChangeEvent and NodeChangeEvent. PreferenceChangeEvent A PreferenceChangeEvent gets emitted by a Properties object every time one of the node's key-value-pairs changes. PreferenceChangeEvents can be listened for with a Prefer...

Event listeners can be removed again from any Properties node, but the instance of the listener has to be kept around for that. Java SE 8 Preferences preferences = Preferences.userNodeForPackage(getClass()); PreferenceChangeListener listener = evt -> { System.out.println(evt.getKey() + ...

Setting a filter applies to all channels that you will subscribe to from that particular client. This client filter excludes messages that have this subscriber's UUID set at the sender's UUID: NSString *expression = [NSString stringWithFormat:@"(uuid != '%@'", se...

Top-level extension methods are not contained within a class. fun IntArray.addTo(dest: IntArray) { for (i in 0 .. size - 1) { dest[i] += this[i] } } Above an extension method is defined for the type IntArray. Note that the object for which the extension method is defined (cal...

In this case, building against API 23, so permissions are handled too. You must add in the Manifest the following permission (wherever the API level you're using): <uses-permission android:name="android.permission.CAMERA"/> We're about to create an activity (Camera2Activity.java...

SELECT your_columns, COUNT(*) OVER() as Ttl_Rows FROM your_data_set idnameTtl_Rows1example52foo53bar54baz55quux5 Instead of using two queries to get a count then the line, you can use an aggregate as a window function and use the full result set as the window. This can be used as a base for fur...

use feature qw( say ); # Numbers are true if they're not equal to 0. say 0 ? 'true' : 'false'; # false say 1 ? 'true' : 'false'; # true say 2 ? 'true' : 'false'; # true say -1 ? 'true' : 'false'; # true say 1-1 ? 'true' : 'false'; # fa...

If you want to get the versioned project's data, but you don't need any of the version control capabilities offered by Subversion, you could run svn export <URL> command. Here is an example: $ svn export https://svn.example.com/svn/MyRepo/MyProject/trunk As a result, you will get the proje...

In Go, you can declare multiple variables at the same time. // You can declare multiple variables of the same type in one line var a, b, c string var d, e string = "Hello", "world!" // You can also use short declaration to assign multiple variables x, y, z := 1, 2, 3 ...