Top "Null-check" questions

How to Groovy-ify a null check?

Is there a more "Groovy" way to write this Groovy code: def myVar=(System.getProperty("props") == null)? null : System.getProperty("…

syntax groovy null-check

javax.annotation.Nonnull vs assert

I'm using Findbugs and javax.annotation.Nonnull on method parameters. On private methods I usually add an assert line to …

java assert findbugs null-check

Can a Java varargs be null?

I found myself checking for this and asking if it's necessary. I have code like this: public Object myMethod(Object... …

java variadic-functions null-check

Null coalescing operator in React JS/ Typescript

We have the Null coalescing operator in .NET and we can use as below string postal_code = address?.postal_code; …

javascript .net reactjs typescript null-check

How to check a value in a SQLite column is NULL or not with C API?

I'm using SQLite with C API. On C API, I can check the result value of a column with sqlite3_…

c sqlite null null-check