Tutorial by Examples: sin

There are several different ways to specify props in JSX. JavaScript Expressions You can pass any JavaScript expression as a prop, by surrounding it with {}. For example, in this JSX: <MyComponent count={1 + 2 + 3 + 4} /> Inside the MyComponent, the value of props.count will be 10, becau...

Description: mov copies values of bits from source argument to destination argument. Common source/destination are registers, usually the fastest way to manipulate values with[in] CPU. Another important group of source_of/destination_for values is computer memory. Finally some immediate values m...

This is usually used for renaming or shortening long namespace references such referring to components of a library. namespace boost { namespace multiprecision { class Number ... } } namespace Name1 = boost::multiprecision; // Both Type declarations are equivale...

Php arrayiterator allows you to modify and unset the values while iterating over arrays and objects. Example: $array = ['1' => 'apple', '2' => 'banana', '3' => 'cherry']; $arrayObject = new ArrayObject($array); $iterator = $arrayObject->getIterator(); for($iterator; $iterator-...

GridView definition on ASPX page As shown below, first column of grid is defined as a checkbox column, which is conditionally cleared as shown in further examples below (the header checkbox is only for selecting/un-selecting all rows on current page, but same can be extended for all on grid easily)...

Go to File > Settings > Keymap and select the Keymaps option from: Mac OS X Emacs Visual Studio Eclise Netbeans Jbuilder and others, to map the shortcuts to the wanted tool ones.

instanceof requires that the variable is of type any. This code (try it): class Pet { } class Dog extends Pet { bark() { console.log("woof"); } } class Cat extends Pet { purr() { console.log("meow"); } } function example(foo: any) { ...

typeof is used when you need to distinguish between types number, string, boolean, and symbol. Other string constants will not error, but won't be used to narrow types either. Unlike instanceof, typeof will work with a variable of any type. In the example below, foo could be typed as number | str...

There is no imshow in the java, you need to write a method for this. This method is a Mat2bufferedImage. Takes mat object as parameter and returns image. public static void main(String[] args) { Mat frame = new Mat(); //0; default video device id VideoCapture camera = new VideoCaptur...

1)In project.json, add below dependencies- "Serilog": "2.2.0", "Serilog.Extensions.Logging": "1.2.0", "Serilog.Sinks.RollingFile": "2.0.0", "Serilog.Sinks.File": "3.0.0" 2)In Startup.cs, add below lines in constru...

A Functor is defined in category theory as a structure-preserving map (a 'homomorphism') between categories. Specifically, (all) objects are mapped to objects, and (all) arrows are mapped to arrows, such that the category laws are preserved. The category in which objects are Haskell types and morph...

tslint can extend an existing rule set and is shipped with the defaults tslint:recommended and tslint:latest. tslint:recommended is a stable, somewhat opinionated set of rules which we encourage for general TypeScript programming. This configuration follows semver, so it will not have breaking ch...

Sometimes we don't want to load the entire XML file in order to get the information we need. In these instances, being able to incrementally load the relevant sections and then delete them when we are finished is useful. With the iterparse function you can edit the element tree that is stored while ...

Function singular($string), convert a plural word to singular. To get perfect result parameter $string should be a single word. The function will return string. echo singular("books"); //prints 'book'