query: Check if an object has a property
positive_passages.docid: 157654
positive_passages.text: Checking if a key exists in a JavaScript object?
negative_passages.docid: 29973
negative_passages.text: Get the name of an object's type
negative_passages.docid: 29684
negative_passages.text: How to check if an object is nullable?
negative_passages.docid: 90956
negative_passages.text: Check if element exists in jQuery
negative_passages.docid: 40527
negative_passages.text: Check if a mesh has a material in Python
negative_passages.docid: 57300
negative_passages.text: How to Sort a List by a property in the object
negative_passages.docid: 29469
negative_passages.text: Access property by Index
negative_passages.docid: 19616
negative_passages.text: Iterate through object properties
negative_passages.docid: 129369
negative_passages.text: Get an object properties list in Objective-C
negative_passages.docid: 137138
negative_passages.text: How to check if an array element exists?
negative_passages.docid: 40229
negative_passages.text: How do I check if a variable exists?
negative_passages.docid: 141086
negative_passages.text: How to access the first property of a Javascript object?
negative_passages.docid: 132944
negative_passages.text: How to Check for a Specific Type of Object in PHP
negative_passages.docid: 20895
negative_passages.text: How do I enumerate the properties of a JavaScript object?
negative_passages.docid: 17040
negative_passages.text: Check if an array is empty or exists
negative_passages.docid: 37247
negative_passages.text: Finding what methods a Python object has
negative_passages.docid: 82107
negative_passages.text: Is it possible to get the non-enumerable inherited property names of an object?