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To use the constant simply use its name: if (EARTH_IS_FLAT) { print "Earth is flat"; } print APP_ENV_UPPERCASE; or if you don't know the name of the constant in advance, use the constant function: // this code is equivalent to the above code $const1 = "EARTH_IS_FLAT&quo...

Java SE 7 switch itself can not be parameterised to be case insensitive, but if absolutely required, can behave insensitive to the input string by using toLowerCase() or toUpperCase: switch (myString.toLowerCase()) { case "case1" : ... break; case &...

Per the Haskell 2010 Language Specification the following are standard IO functions available in Prelude, so no imports are required to use them. putChar :: Char -> IO () - writes a char to stdout Prelude> putChar 'a' aPrelude> -- Note, no new line putStr :: String -> IO () - writ...

As-per the Haskell 2010 Language Specification, the following are standard IO functions available in Prelude, so no imports are required to use them. getChar :: IO Char - read a Char from stdin -- MyChar.hs main = do myChar <- getChar print myChar -- In your shell runhaskell MyChar...

Encoding //convert the image to NSData first let imageData:NSData = UIImagePNGRepresentation(image)! // convert the NSData to base64 encoding let strBase64:String = imageData.base64EncodedStringWithOptions(.Encoding64CharacterLineLength) Decoding let dataDecoded:NSData = NSData(base64Encoded...

Let's say we have type ENUM('fish','mammal','bird') An alternative is type TINYINT UNSIGNED plus CREATE TABLE AnimalTypes ( type TINYINT UNSIGNED NOT NULL AUTO_INCREMENT, name VARCHAR(20) NOT NULL COMMENT "('fish','mammal','bird')", PRIMARY KEY(type), INDEX(na...

ALTER TABLE tbl MODIFY COLUMN type ENUM('fish','mammal','bird','insect'); Notes As with all cases of MODIFY COLUMN, you must include NOT NULL, and any other qualifiers that originally existed, else they will be lost. If you add to the end of the list and the list is under 256 items, the ALTER...

Haskell supports many forms of concurrency and the most obvious being forking a thread using forkIO. The function forkIO :: IO () -> IO ThreadId takes an IO action and returns its ThreadId, meanwhile the action will be run in the background. We can demonstrate this quite succinctly using ghci: ...

Changing an auto-increment value is useful when you don't want a gap in an AUTO_INCREMENT column after a massive deletion. For example, you got a lot of unwanted (advertisement) rows posted in your table, you deleted them, and you want to fix the gap in auto-increment values. Assume the MAX value o...

To insert data retrieved from SQL query (single or multiple rows) INSERT INTO Table_name (FirstName, LastName, Position) SELECT FirstName, LastName, 'student' FROM Another_table_name Note, 'student' in SELECT is a string constant that will be inserted in each row. If required, you can select a...

using System; using System.Linq; using System.Security.Cryptography; namespace YourCryptoNamespace { /// <summary> /// Salted password hashing with PBKDF2-SHA1. /// Compatibility: .NET 3.0 and later. /// </summary> /// <remarks>See http://crackstation.net/h...

If you want to add an attribute to some element you can use the attr(attributeName, attributeValue) function. For example: $('a').attr('title', 'Click me'); This example will add mouseover text "Click me" to all links on the page. The same function is used to change attributes' values...

To remove an attribute from an element you can use the function .removeAttr(attributeName). For example: $('#home').removeAttr('title'); This will remove title attribute from the element with ID home.

$q is a built-in service which helps in executing asynchronous functions and using their return values(or exception) when they are finished with processing. $q is integrated with the $rootScope.Scope model observation mechanism, which means faster propagation of resolution or rejection into your m...

Transform tr = GetComponent<Transform>().Find("NameOfTheObject"); GameObject go = tr.gameObject; Find returns null if none is found ProsConsLimited, well defined search scopeStrings are weak references

Like normal HTML elements, it is possible for $scopes to have their own events. $scope events can be subscribed to using the following manner: $scope.$on('my-event', function(event, args) { console.log(args); // { custom: 'data' } }); If you need unregister an event listener, the $on func...

ALTER TABLE fish_data.fish DROP PRIMARY KEY; ALTER TABLE fish_data.fish MODIFY COLUMN fish_id DECIMAL(20,0) NOT NULL PRIMARY KEY; An attempt to modify the type of this column without first dropping the primary key would result in an error.

In Insert mode, press <C-r> and then % to insert the filename. This technique is applicable to all registers. For e.g. if in insert mode, you want to paste the current search pattern, you can type <C-r> and then /.

Formatting a JavaScript date in modern browsers In modern browsers (*), Date.prototype.toLocaleDateString() allows you to define the formatting of a Date in a convenient manner. It requires the following format : dateObj.toLocaleDateString([locales [, options]]) The locales parameter should be...

When the first time view is requested, normally Angular makes XHR request to get that view. For mid-size projects, the view count can be significant and it can slow down the application responsiveness. The good practice is to pre-load all the views at once for small and mid size projects. For large...