query: Comparing variable to empty jquery object in if condition
positive_passages.docid: 19818
positive_passages.text: How do you check if a selector matches something in jQuery?
negative_passages.docid: 70566
negative_passages.text: How do I check if an object has a key in JavaScript?
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negative_passages.text: Which equals operator (== vs ===) should be used in JavaScript comparisons?
negative_passages.docid: 128709
negative_passages.text: Why is there a `null` value in JavaScript?
negative_passages.docid: 62074
negative_passages.text: Which is more effective: if (null == variable) or if (variable == null)?
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negative_passages.text: Why is True returned when checking if an empty string is in another?
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negative_passages.text: How do you use the ? : (conditional) operator in JavaScript?
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negative_passages.text: Check if object is a jQuery object
negative_passages.docid: 33574
negative_passages.text: Comparing a string with the empty string (Java)
negative_passages.docid: 132096
negative_passages.text: How do you check if a JavaScript Object is a DOM Object?
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negative_passages.text: JavaScript check if variable exists (is defined/initialized)
negative_passages.docid: 76367
negative_passages.text: How to compare two object variables in EL expression language?
negative_passages.docid: 90853
negative_passages.text: How can I compare multiple variables to a single condition?
negative_passages.docid: 86355
negative_passages.text: ?: ternary conditional operator behaviour when leaving one expression empty
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negative_passages.text: How can I check whether a variable is defined in JavaScript?