Tutorial by Examples: b

Often when using a callback you want access to a specific context. function SomeClass(msg, elem) { this.msg = msg; elem.addEventListener('click', function() { console.log(this.msg); // <= will fail because "this" is undefined }); } var s = new SomeClass("hello&q...

Maximum subarray problem is the method to find the contiguous subarray within a one-dimensional array of numbers which has the largest sum. The problem was originally proposed by Ulf Grenander of Brown University in 1977, as a simplified model for maximum likelihood estimation of patterns in digiti...

Use Update the object name which is stored in reference SYNOPSIS git update-ref [-m <reason>] (-d <ref> [<oldvalue>] | [--no-deref] [--create-reflog] <ref> <newvalue> [<oldvalue>] | --stdin [-z]) General Syntax Dereferencing the symbolic refs, update th...

The [record][1] library provides the ability to create compound terms with named fields. The directive :- record/1 <spec> compiles to a collection of predicates that initialize, set and get fields in the term defined by <spec>. For example, we can define a point data structure with nam...

public class CustomYouTubeActivity extends YouTubeBaseActivity implements YouTubePlayer.OnInitializedListener, YouTubePlayer.PlayerStateChangeListener { private YouTubePlayerView mPlayerView; private YouTubePlayer mYouTubePlayer; private String mVideoId = "B08iLAtS3AQ"; ...

task = Task.async(fn -> expensive_computation end) do_something_else result = Task.await(task)

The binder gives you an opportunity to inspect what types are being loaded in your application domain Create a class inherited from SerializationBinder class MyBinder : SerializationBinder { public override Type BindToType(string assemblyName, string typeName) { if (typeName.Eq...

One of the most interesting Number Patterns is Pascal's Triangle. The Name "Pascal's Triangle" named after Blaise Pascal, a famous French Mathematician and Philosopher. In Mathematics, Pascal's Triangle is a triangular array of binomial coefficients.The rows of Pascal's triangle are conve...

Most of the time a TabLayout is used together with a ViewPager, in order to get the swipe functionality that comes with it. It is possible to use a TabLayout without a ViewPager by using a TabLayout.OnTabSelectedListener. First, add a TabLayout to your activity's XML file: <android.support.des...

The file editor that ships with WordPress is a security risk. If an attacker gains admin access to your WordPress website they will be easily able to insert malicious code into theme and plugin files. It is also a risk with clients who don't know what they're doing. Once misplaced colon in the file ...

When you install WordPress to your server, the installation script will place a prefix in front of all the WordPress MySQL table names. This prefix is set to 'wp_' by default. The WordPress posts table will be called wp_posts for example. By changing the table prefix you can create some security by ...

Background Theory: Bresenham’s Line Drawing Algorithm is an efficient and accurate raster line generating algorithm developed by Bresenham. It involves only integer calculation so it is accurate and fast. It can also be extended to display circles another curves. In Bresenham line drawing algorith...

To draw a cuboid, you have to use the box() function by giving its dimensions as its parameters. size(200, 200, P3D); //Starting the P3D renderer translate(width/2, height/2); //Translating to the centre of the sketch rotateY(PI/4); //rotate so that... rotateX(PI/6); //... it will be easy to see...

If you have an attribute that needs to be saved and retrieved to database as an object, then specify the name of that attribute using the serialize method and it will be handled automatically. The attribute must be declared as a text field. In the model you must declare the type of the field (Hash...

The Shortest Common Super Sequence is a problem closely related to the longest common subsequence, which you can use as an external function for this task. The shortest common super sequence problem is a problem closely related to the longest common subsequence problem. A shortest common superseque...

public class ShortestCommonSupersequence { private static int Max(int a, int b) { return a > b ? a : b; } private static int Lcs(string x, string y, int m, int n) { var l = new int[m + 1, n + 1]; for (var i = 0; i <= m; i++) {...

The most important part of your RMD file is the YAML header. For writing an academic paper, I suggest to use PDF output, numbered sections and a table of content (toc). --- title: "Writing an academic paper in R" author: "Author" date: "Date" output: pdf_documen...

scan is used for calling function multiple times over a list of values, the function may contain state. scan syntax (as of theano 0.9): scan( fn, sequences=None, outputs_info=None, non_sequences=None, n_steps=None, truncate_gradient=-1, go_backwards=False, m...

This example will list the preferred resolution for all the connected monitors. The Code: On Error Resume Next strComputer = "." strQuery = "SELECT PreferredMonitorSourceModeIndex, MonitorSourceModes " & _ "FROM WmiMonitorListedSupportedSourceModes" ...

location = /favicon.ico { log_not_found off; access_log off; } location = /robots.txt { allow all; log_not_found off; access_log off; }