Results for “cr”
Small, practical examples. Search by task or narrow things down below.
Check array membership with includes
TypeScript: includes uses SameValueZero comparison, which also matches NaN.
TypeScript✓ Tested
Check exact array membership
Bash Scripts: Compare each element literally instead of searching a concatenated string.
Bash Scripts✓ Tested
Check for a substring
Perform a case-sensitive JavaScript substring check.
JavaScript✓ Tested
Check for an installed command
Bash Scripts: command -v checks command resolution without assuming a specific installation path.
Bash Scripts✓ Tested
Check whether a function has been defined
Bash Scripts: declare -F tests a function name without executing it.
Bash Scripts✓ Tested
Check whether a value is a safe integer
JavaScript: Number.isSafeInteger also checks the exact-integer range supported by Number.
JavaScript✓ Tested
Check whether a value is a safe integer
TypeScript: Number.isSafeInteger also checks the exact-integer range supported by Number.
TypeScript✓ Tested
Check whether a variable exists under nounset
Bash Scripts: The plus expansion distinguishes an unset variable without reading its missing value.
Bash Scripts✓ Tested
Check whether any item matches
JavaScript: some stops once a predicate succeeds.
JavaScript✓ Tested
Check whether any item matches
TypeScript: some stops once a predicate succeeds.
TypeScript✓ Tested
Check whether every item matches
JavaScript: every stops at the first failed predicate and returns true for an empty array.
JavaScript✓ Tested
Check whether every item matches
TypeScript: every stops at the first failed predicate and returns true for an empty array.
TypeScript✓ Tested