Tutorial by Examples: u

HTML example using requireJS CDN to include an already compiled TypeScript file.

<body onload="__init();"> ... <script src="http://requirejs.org/docs/release/2.3.2/comments/require.js"></script> <script> function __init() { require(["view/index.js"]); } </script> </body>...

tsconfig.json example to compile to view folder using requireJS import style.

{ "module": "amd", // Using AMD module code generator which works with requireJS "rootDir": "./src", // Change this to your source folder "outDir": "./view", ... }

Camel Domain Specific Language

Camel's DSL (Domain Specific Language) is one of the features that makes Camel standout from other Integration frameworks. While some other frameworks also feature a DSL concept, typically in the form of a XML file, the DSL was in such cases always a custom based language. Camel offers multiple DSL...

Sync adapter with every min requesting value from server.

<provider android:name=".DummyContentProvider" android:authorities="sample.map.com.ipsyncadapter" android:exported="false" /> <!-- This service implements our SyncAdapter. It needs to be exported, so that the system sync f...

Computing the Hamming weight of a vector

-- loop-based version function hw_loop(v: std_logic_vector) return natural is variable h: natural; begin h := 0; for i in v'range loop if v(i) = '1' then h := h + 1; end if; end loop; return h; end function hw_loop; -- recursive version function hw_tree(v: std_...

Installation Drupal 7 in steps

Step 1: Download and extract Drupal Drupal is available in two supported versions: the most recent and the previous. Currently that is Drupal 8 (released November 2015) and Drupal 7. The Recommended releases are the latest stable releases of either version. To learn more about versions, see the Dru...

Write to standard error output using Console

var sourceFileName = "NonExistingFile"; try { System.IO.File.Copy(sourceFileName, "DestinationFile"); } catch (Exception e) { var stdErr = Console.Error; stdErr.WriteLine($"Failed to copy '{sourceFileName}': {e.Message}"); }

Listing Elixir modules and functions

To get the list of Elixir modules just type h Elixir.[TAB] Pressing [TAB] autocompletes modules and functions names. In this case it lists all modules. To find all functions in a module e.g. List use h List.[TAB]

render multiple variables

For rendering multiple props or variables we can use ``. render() { let firstName = 'test'; let lastName = 'name'; return ( <View style={styles.container}> <Text>{`${firstName} ${lastName}` } </Text> </View> ); } Output: te...

Running the built in server

php -S localhost:80 PHP 7.1.7 Development Server started at Fri Jul 14 15:11:05 2017 Listening on http://localhost:80 Document root is C:\projetos\repgeral Press Ctrl-C to quit. This is the simplest way to start a PHP server that responds to request made to localhost at the port 80. The -S...

built in server with specific directory and router script

php -S localhost:80 -t project/public router.php PHP 7.1.7 Development Server started at Fri Jul 14 15:22:25 2017 Listening on http://localhost:80 Document root is /home/project/public Press Ctrl-C to quit.

The PX(DB)DateAndTime Attribute

The PXDBDateAndTime attribute and the PXDateAndTime attribute are designed to work with a DAC field of the Nullable<DateTime> (DateTime?) type and store both date and time value parts inside a single field: #region UsrDateAndTime public abstract class usrDateAndTimeAttribute : IBqlField { }...

The PXDBTime Attribute

The PXDBTime attribute is designed to work with a DAC field of the Nullable<DateTime> (DateTime?) type and store only the time part without date inside a DAC field: #region UsrTime public abstract class usrTime : IBqlField { } [PXDBTime(DisplayMask = "t", InputMask = "t&qu...

The PX(DB)DateAttribute Attribute

The PXDBDate attribute and the PXDate attribute are designed to work with a DAC field of the Nullable<DateTime> (DateTime?) type and store date value with an optional time part inside a single field. Wheather PX(DB)DateAttribute should save time in addition to date in a DAC field is defined by...

The PXDBTimeSpan Attribute

The PXDBTimeSpan attribute is designed to work with a DAC field of the Nullable<int> (int?) type and store time value inside a DAC field as the number of minutes passed since midnight: #region UsrTimeInt public abstract class usrTimeInt : IBqlField { } [PXDBTimeSpan(DisplayMask = "t...

The PXTimeList Attribute

The PXTimeList attribute is designed to work with a DAC field of the Nullable<int> (int?) type and store time span value inside a DAC field as a number of minutes: #region UsrTimeSpan public abstract class usrTimeSpan : IBqlField { } [PXDBInt] [PXTimeList] [PXUIField(DisplayName = &quo...

Dissoc - disassociating a key from a clojure map

This returns a map without the key-value pairs for the keys mentioned in the function argument. It can be used to remove information from existing map. (dissoc {:a 1 :b 2} :a) ;; {:b 2} It can also be used for dissocing multiple keys as: (dissoc {:a 1 :b 2 :c 3} :a :b) ;; {:c 3}

Using AS

This is ANSI SQL method works in all the RDBMS. Widely used approach. CREATE TABLE AliasNameDemo (id INT,firstname VARCHAR(20),lastname VARCHAR(20)) INSERT INTO AliasNameDemo VALUES (1,'MyFirstName','MyLastName') SELECT FirstName +' '+ LastName As FullName FROM AliasNameDemo

Using =

This is my preferred approach. Nothing related to performance just a personal choice. It makes the code to look clean. You can see the resulting column names easily instead of scrolling the code if you have a big expression. CREATE TABLE AliasNameDemo (id INT,firstname VARCHAR(20),lastname VARCHAR(...

Without using AS

This syntax will be similar to using AS keyword. Just we don't have to use AS keyword CREATE TABLE AliasNameDemo (id INT,firstname VARCHAR(20),lastname VARCHAR(20)) INSERT INTO AliasNameDemo VALUES (1,'MyFirstName','MyLastName') SELECT FirstName +' '+ LastName FullName FROM AliasNa...

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