Results for “IS NULL”
Small, practical examples. Search by task or narrow things down below.
Read the beginning of a text value
C: Extract or display the first three ASCII characters from a known nonempty string.
C✓ Tested
Read the current branch name
Git: show-current returns an empty string when HEAD is detached.
Git✓ Tested
Read the exact version currently staged
Git: The colon path syntax reads a blob from the index rather than from HEAD or the working file.
Git✓ Tested
Read the final array item with a negative index
JavaScript: at supports negative positions counted from the end.
JavaScript✓ Tested
Read the first collection element
Python: Access index zero only after establishing that the collection is nonempty.
Python✓ Tested
Read the first collection element
C#: Access index zero only after establishing that the collection is nonempty.
C#✓ Tested
Read the first collection element
Java: Access index zero only after establishing that the collection is nonempty.
Java✓ Tested
Read the first collection element
JavaScript: Access index zero only after establishing that the collection is nonempty.
JavaScript✓ Tested
Read the first collection element
TypeScript: Access index zero only after establishing that the collection is nonempty.
TypeScript✓ Tested
Read the first collection element
C++: Access index zero only after establishing that the collection is nonempty.
C++✓ Tested
Read the first collection element
C: Access index zero only after establishing that the collection is nonempty.
C✓ Tested
Read the kind of command being invoked
PowerShell: CommandType distinguishes cmdlets from functions, aliases, and external applications.
PowerShell✓ Tested