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TypeScriptGetting Started

Read one character from ASCII text

TypeScript: Use a valid zero-based index to read the first character.

TypeScript✓ Tested
C++Getting Started

Read one character from ASCII text

C++: Use a valid zero-based index to read the first character.

C++✓ Tested
CGetting Started

Read one character from ASCII text

C: Use a valid zero-based index to read the first character.

C✓ Tested
PythonGetting Started

Read the first collection element

Python: Access index zero only after establishing that the collection is nonempty.

Python✓ Tested
C#Getting Started

Read the first collection element

C#: Access index zero only after establishing that the collection is nonempty.

C#✓ Tested
JavaGetting Started

Read the first collection element

Java: Access index zero only after establishing that the collection is nonempty.

Java✓ Tested
JavaScriptGetting Started

Read the first collection element

JavaScript: Access index zero only after establishing that the collection is nonempty.

JavaScript✓ Tested
TypeScriptGetting Started

Read the first collection element

TypeScript: Access index zero only after establishing that the collection is nonempty.

TypeScript✓ Tested
C++Getting Started

Read the first collection element

C++: Access index zero only after establishing that the collection is nonempty.

C++✓ Tested
CGetting Started

Read the first collection element

C: Access index zero only after establishing that the collection is nonempty.

C✓ Tested
Bash ScriptsArguments & decisions

Repeat until a condition becomes true

Bash Scripts: An until loop continues while its test returns a nonzero status.

Bash Scripts✓ Tested
CNumeric parsing & arithmetic

Round a halfway floating-point value

C: The C round function rounds halfway cases away from zero.

C✓ Tested