JavaScript's double not operatoris basically double use of (!) operator. This is alogical not operator. (!!) operator converts non-Boolean to Boolean. As you know,!operator reverses the logic, i.e., it returnfalsefor!truevalue andtruefor!false. Examples of (!) Operator !false Output: ...
'object' does not contain a definition for 'Text' and no accessible extension method 'Text' accepting a first argument of type 'object' could be found 'sender' parameter not working with switch/case block? 'SQL server Login Failed for User' error specifically when running windows service 'Str...
AD: Export list of all security groups + description ADCSAdministration module add columns into existing csv file from powershell script Add "Full Control" to a Folder Add a carriage return in a .csv file Add a Property to an Array that Adds a Range of IPs Add a URL rewrite condition on...
Should this code throw an ArrayIndexOutOfBoundsException or not? If you compile ThreadSurprise using different Sun Microsystems JDK/J2SDK (Java 2 Platform, Standard Development Kit) versions, behavior will not be consistent:Version 1.1 and earlier compilers generate code that does not throw Version...
charAt(index) –The charAt method allows the return of the value of the character specified in the particular index. Example- String str = 'Hello Intellipaat.'; System.assertEquals(937, str.charAt(0)); equals –The equals method allows returning true value if the given string and the string...
JavaScript Function: document.getElementById("first").addEventListener("click",function(event){event.preventDefault()});function(event){returntrue;} Output:
The ProjectRoot in a dproj/cbproj file should always sort consistently. The IDE Wait dialog’s ToolsAPI interface has had some parameters renamed to better reflect their functionality The ‘New Edit Window’ menu item is now disabled when a view does not support cloning. This includes the Welc...
publicclassTeacherAssistant{publicstaticStringvalidatedFieldName(StringfieldName){if(!fieldName.matches("^m[A-Z].*"))thrownewIllegalArgumentException();returnfieldName;}} Again, like i said, this is a bit out of the scope for this course but you asked for concise. :) ...
) return@Factory null val file = data.first as? File ?: return@Factory null return@Factory Fetcher { // TODO what if theres no cover? does this work correctly at all? ImageFetchResult( ThumbnailUtils.createAudioThumbnail(file, options.size.let { Size(it.width.pxOrElse { size?.width ?:...
returns the receiver, if it does ornullif it doesn’t. Combined with an elvis-operator and early returns it allows to write constructs like: valoutDirFile =File(outputDir.path).takeIf{it.exists()}?:returnfalse // do something with existing outDirFile ...