TomWright/dasel v3.5.0

on GitHub

v3.5.0

A big release packed with new built-in functions, array expressions, and the ternary operator.

Highlights

• Ternary operator — inline conditionals with condition ? then : else
• 22 new functions and expressions covering strings, math, arrays, maps, and type conversion
• Bug fixes for non-base10 number parsing and XML round-trip ordering

New Functions

Strings

• split(separator) — split a string into an array
• toLower() / toUpper() — case conversion
• trim() / trimPrefix(prefix) / trimSuffix(suffix) — whitespace and affix trimming
• startsWith(prefix) / endsWith(suffix) — prefix/suffix checks
• indexOf(substring) — find substring position (-1 if not found)

Math

• abs() — absolute value
• floor() / ceil() / round() — rounding
• avg(...) — average of numbers

Arrays

• flatten() — flatten nested arrays by one level
• unique() — remove duplicates
• first() / last() — first/last element

Maps

• values() — map values as an array
• entries() / fromEntries() — convert between maps and {key, value} arrays

Type Conversion

• toBool() — convert a value to boolean
• stringify(format) — serialize a value to a format string (inverse of parse)

New Expressions

• any(predicate) — true if any array element matches
• all(predicate) — true if all array elements match
• count(predicate) — count matching array elements

Ternary Operator

A compact alternative to if/else blocks:

age >= 18 ? "adult" : "minor"

Supports nesting with parentheses, all comparison/logical operators, and works inside map(), filter(), etc.

Bug Fixes

• Fixed YAML and TOML parsers failing on non-base10 numbers (hex, binary, octal)
• Fixed toInt failing on non-base10 numbers
• Improved XML child element ordering for round-trip handling (thanks @takeokunn)

Full Changelog: v3.4.1...v3.5.0