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Results for “check”

Small, practical examples. Search by task or narrow things down below.

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Bash ScriptsDiagnostics & defensive scripting

Check a script’s syntax without executing its body

Bash Scripts: bash -n parses commands but does not run ordinary script statements.

Bash Scripts✓ Tested
JavaText validation & formatting

Check a string prefix

Java: Use startsWith to check a literal Java prefix without a regular expression.

Java✓ Tested
PowerShellStrings & literal text

Check a string prefix using ordinal comparison

PowerShell: Supply an explicit comparison rule for protocol identifiers.

PowerShell✓ Tested
PowerShellStrings & literal text

Check a suffix without case sensitivity

PowerShell: Use an ordinal case-insensitive comparison for a known filename extension.

PowerShell✓ Tested
CDynamic memory & ownership

Check an array allocation size before multiplying

C: Compare the requested element count against SIZE_MAX divided by element size.

C✓ Tested
C#Text validation & encoding

Check an extension without case sensitivity

C#: Use an explicit ordinal case-insensitive comparison for a known filename suffix.

C#✓ Tested
PowerShellCommands & execution context

Check an external process exit status explicitly

PowerShell: LASTEXITCODE reports a native child exit code independently of ordinary PowerShell cmdlet errors.

PowerShell✓ Tested
C++Numeric parsing & calculations

Check an upper integer bound before adding

C++: For these nonnegative values, compare against the maximum minus the addend first.

C++✓ Tested
JavaStream transformations

Check any and all stream elements

Java: Use short-circuiting match operations for predicates over a Java collection.

Java✓ Tested
JavaScriptArray traversal & selection

Check array membership with includes

JavaScript: includes uses SameValueZero comparison, which also matches NaN.

JavaScript✓ Tested
TypeScriptArray traversal & selection

Check array membership with includes

TypeScript: includes uses SameValueZero comparison, which also matches NaN.

TypeScript✓ Tested
Linux CommandsSystem information

Check available disk space

Show total, used, and available filesystem space for the current directory in human-readable units.

disk✓ Tested