query: Checking if object is null
positive_passages.docid: 49
positive_passages.text: What is a NullPointerException, and how do I fix it?
negative_passages.docid: 36270
negative_passages.text: Nullable type issue with ?: Conditional Operator
negative_passages.docid: 115231
negative_passages.text: Deep null checking, is there a better way?
negative_passages.docid: 109876
negative_passages.text: In the msdn guidance on Equals override, why the cast to object in the null check?
negative_passages.docid: 93772
negative_passages.text: Why is isNaN(null) == false in JS?
negative_passages.docid: 127005
negative_passages.text: ' ... != null' or 'null != ....' best performance?
negative_passages.docid: 128709
negative_passages.text: Why is there a `null` value in JavaScript?
negative_passages.docid: 109927
negative_passages.text: JavaScript null check
negative_passages.docid: 120071
negative_passages.text: Checking for a null int value from a Java ResultSet
negative_passages.docid: 126341
negative_passages.text: Avoiding IF ELSE due to variable been NULL
negative_passages.docid: 148793
negative_passages.text: Checking Textbox Text for Null
negative_passages.docid: 641
negative_passages.text: Which overload will get selected for null in Java?
negative_passages.docid: 64200
negative_passages.text: Can Java's NullPointerException be changed to report on which variable was null?
negative_passages.docid: 148248
negative_passages.text: Check if object is Class type
negative_passages.docid: 140738
negative_passages.text: Does setting Java objects to null do anything anymore?
negative_passages.docid: 5377
negative_passages.text: Is there a standard function to check for null, undefined, or blank variables in JavaScript?
negative_passages.docid: 153624
negative_passages.text: What's the difference between is_null($var) and ($var === null)?