Tutorial by Examples: d

You can use git merge --squash to squash changes introduced by a branch into a single commit. No actual commit will be created. git merge --squash <branch> git commit This is more or less equivalent to using git reset, but is more convenient when changes being incorporated have a symbolic...

add_filter('template_include', 'custom_function'); function custom_function($template){ /* * This example is a little more advanced. * It will check to see if $template contains our post-type in the path. * If it does, the theme contains a high level templat...

git stash list This will list all stashes in the stack in reverse chronological order. You will get a list that looks something like this: stash@{0}: WIP on master: 67a4e01 Merge tests into develop stash@{1}: WIP on master: 70f0d95 Add user role to localStorage on user login You can refer t...

To apply the last stash and remove it from the stack - type: git stash pop To apply specific stash and remove it from the stack - type: git stash pop stash@{n}

The background-attachment property sets whether a background image is fixed or scrolls with the rest of the page. body { background-image: url('img.jpg'); background-attachment: fixed; } ValueDescriptionscrollThe background scrolls along with the element. This is default.fixedThe backgro...

The background-repeat property sets if/how a background image will be repeated. By default, a background-image is repeated both vertically and horizontally. div { background-image: url("img.jpg"); background-repeat: repeat-y; } Here's how a background-repeat: repeat-y looks lik...

Math.random(); produces an evenly distributed random number between 0 (inclusive) and 1 (exclusive) Example output: 0.22282187035307288 0.3948539895936847 0.9987191134132445

function randomMinMax(min:Number, max:Number):Number { return (min + (Math.random() * Math.abs(max - min))); } This function is called by passing a range of minimum and maximum values. Example: randomMinMax(1, 10); Example outputs: 1.661770915146917 2.5521070677787066 9.4362709657...

function randomAngle():Number { return (Math.random() * 360); } Example outputs: 31.554428357630968 230.4078639484942 312.7964010089636

To ignore a file foo.txt in any directory you should just write its name: foo.txt # matches all files 'foo.txt' in any directory If you want to ignore the file only in part of the tree, you can specify the subdirectories of a specific directory with ** pattern: bar/**/foo.txt # matches all file...

int a = 1; int *a_pointer = &a; To dereference a_pointer and change the value of a, we use the following operation *a_pointer = 2; This can be verified using the following print statements. printf("%d\n", a); /* Prints 2 */ printf("%d\n", *a_pointer); /* Also prints...

Custom views can also take custom attributes which can be used in Android layout resource files. To add attributes to your custom view you need to do the following: Define the name and type of your attributes: this is done inside res/values/attrs.xml (create it if necessary). The following file...

Destructuring allows us to refer to one key in an object, but declare it as a variable with a different name. The syntax looks like the key-value syntax for a normal JavaScript object. let user = { name: 'John Smith', id: 10, email: '[email protected]', }; let {user: userName, id: us...

It is important for someone traversing through the git log to easily understand what each commit was all about. Good commit messages usually include a number of a task or an issue in a tracker and a concise description of what has been done and why, and sometimes also how it has been done. Better m...

One way to create a macro is to record it. Start recording a macro and save it to a register (in this example, we'll use a, but it can be any register you could normally yank text to): qa Then run the commands you want to record in the macro (here, we'll surround the contents of a line with &lt...

HTML 4.01/XHTML 1.0 Strict includes the following void elements: area - clickable, defined area in an image base - specifies a base URL from which all links base br - line break col - column in a table [deprecated] hr - horizontal rule (line) img - image input - field where users enter data...

This example creates a Polymer element named x-foo, whose template binds to a string property, named "message". The element's HTML is imported into the main document, which allows usage of <x-foo> tags in <body>. x-foo.html <dom-module id="x-foo"> <templ...

std::async is also able to make threads. Compared to std::thread it is considered less powerful but easier to use when you just want to run a function asynchronously. Asynchronously calling a function #include <future> #include <iostream> unsigned int square(unsigned int i){ r...

If you want to pass in values to a method when it is called, you use parameters: - (int)addInt:(int)intOne toInt:(int)intTwo { return intOne + intTwo; } The colon (:) separates the parameter from the method name. The parameter type goes in the parentheses (int). The parameter name goes aft...

This is how to create a basic method that logs 'Hello World" to the console: - (void)hello { NSLog(@"Hello World"); } The - at the beginning denotes this method as an instance method. The (void) denotes the return type. This method doesn't return anything, so you enter void. ...