To show or hide a variable if null in AngularJs, you can use the snippet below.
Sample AngularJs
<div ng-show="myVariable == null"></div>
or
<div ng-show="myvar != null"></div>
To show or hide a variable if null in AngularJs, you can use the snippet below.
<div ng-show="myVariable == null"></div>
or
<div ng-show="myvar != null"></div>
You can use the IsNull Extension method by using the snippet below.
public static bool IsNull(this object source) { return source == null; }
<System.Runtime.CompilerServices.Extension> _ Public Shared Function IsNull(source As Object) As Boolean Return source Is Nothing End Function
As always, this extension method has been added to the Github Fesslersoft.Extensions Repository
To check if String is Null or Empty in XSL you can use the following snippet.
<xsl:choose> <xsl:when test="fieldToTest != ''"> <xsl:value-of select="Field1Value" /> </xsl:when> <xsl:otherwise> <xsl:value-of select="Field2Value" /> </xsl:otherwise> </xsl:choose>
This snippet will give you the IsNullOrEmpty function for PHP.
function IsNullOrEmpty($input){ return (!isset($input) || trim($input)===''); }
This snippet will give you the IsEmpty function for Javascript.
String.prototype.IsEmpty = function(text) { return this.valueOf() || text || ""; };
IsNull extension method for C# and VB.NET.
Simple but very usefull!
public static bool IsNull(this object input) { return input== null; }
<System.Runtime.CompilerServices.Extension> _ Public Shared Function IsNull(input As Object) As Boolean Return input Is Nothing End Function
if (!myObject.IsNull()) { // do something }