Check whether a object is deferred or not?
126638
How can I determine if a jQuery object is deferred?
19957
Is returning early from a function more elegant than an if statement?
37773
How do I detect whether a Python variable is a function?
113419
Is there a helper to know whether a property has been loaded by Hibernate?
126532
How can I synchronously determine a JavaScript Promise's state?
10259
Javascript: What's more efficient, IF block or TRY/CATCH?
114337
How to check that SObject field is present in SOQL query
124644
Does JavaScript guarantee object property order?
148244
Defer Parsing of Scripts
49446
How to check for an undefined or null variable in JavaScript?
108025
Check if class already assigned before adding
31537
Checking for null before event dispatching... thread safe?
98776
Await in catch block
71238
Check if a property exists in a class
30987
How to tell if a JavaScript function is defined
27583
Determine if object is integer
80608
JavaScript check if variable exists (is defined/initialized)