std.str

import std.str

Function	Signature	Description
str.length	str.length(s: str) -> int	Character count
str.split	str.split(s: str, sep: str) -> [str]	Split by separator ("" splits chars)
str.contains	str.contains(s: str, sub: str) -> bool	Substring test
str.trim	str.trim(s: str) -> str	Trim both ends
str.trim_start	str.trim_start(s: str) -> str	Trim leading whitespace
str.trim_end	str.trim_end(s: str) -> str	Trim trailing whitespace
str.to_upper	str.to_upper(s: str) -> str	Uppercase
str.to_lower	str.to_lower(s: str) -> str	Lowercase
str.replace	str.replace(s: str, old: str, new: str) -> str	Replace all occurrences
str.starts_with	str.starts_with(s: str, prefix: str) -> bool	Prefix test
str.ends_with	str.ends_with(s: str, suffix: str) -> bool	Suffix test
str.join	str.join(arr: [str], sep: str) -> str	Join with separator
str.repeat	str.repeat(s: str, n: int) -> str	Repeat n times
str.count	str.count(s: str, sub: str) -> int	Count occurrences
str.is_empty	str.is_empty(s: str) -> bool	Empty test
str.reverse	str.reverse(s: str) -> str	Reversed string
str.pad_left	str.pad_left(s: str, len: int, pad: str) -> str	Left-pad to length
str.pad_right	str.pad_right(s: str, len: int, pad: str) -> str	Right-pad to length

import std.str

words := ["hello", "world"]
sentence := str.join(words, " ")
println(sentence)  // hello world

messy := "  spaces  "
println(str.trim(messy))        // spaces
println(str.pad_left("5", 3, "0"))  // 005

Every function also works as a method on the string:

import std.str

"  hello  ".trim()                    // "hello"
"hello world".replace("world", "ZZ")  // "hello ZZ"
"hello".starts_with("he")             // true