strings

The strings module provides advanced string manipulation beyond built-in methods.

Import

import strings
import { trim, split, join } from strings

Basic Operations

trim

Remove whitespace from both ends:

@strings#trim("  hello  ")  @// "hello"

trim_start

Remove whitespace from start:

@strings#trim_start("  hello  ")  @// "hello  "

trim_end

Remove whitespace from end:

@strings#trim_end("  hello  ")  @// "  hello"

trim_chars

Remove specific characters:

@strings#trim_chars("...hello...", ".")  @// "hello"

Splitting and Joining

split

Split by delimiter:

@strings#split("a,b,c", ",")  @// ["a", "b", "c"]

split_n

Split into at most n parts:

@strings#split_n("a,b,c,d", ",", 2)  @// ["a", "b,c,d"]

split_lines

Split by line breaks:

@strings#split_lines("line1\nline2\nline3")

split_whitespace

Split by any whitespace:

@strings#split_whitespace("a b  c")  @// ["a", "b", "c"]

join

Join strings with delimiter:

@strings#join(["a", "b", "c"], ",")  @// "a,b,c"

concat

Concatenate strings:

@strings#concat("hello", " ", "world")  @// "hello world"

Case Conversion

to_upper

Convert to uppercase:

@strings#to_upper("hello")  @// "HELLO"

to_lower

Convert to lowercase:

@strings#to_lower("HELLO")  @// "hello"

to_title

Convert to title case:

@strings#to_title("hello world")  @// "Hello World"

to_camel

Convert to camelCase:

@strings#to_camel("hello world")  @// "helloWorld"

to_pascal

Convert to PascalCase:

@strings#to_pascal("hello world")  @// "HelloWorld"

to_snake

Convert to snake_case:

@strings#to_snake("helloWorld")  @// "hello_world"

to_kebab

Convert to kebab-case:

@strings#to_kebab("helloWorld")  @// "hello-world"

Searching

contains

Check if string contains substring:

@strings#contains("hello world", "world")  @// true

starts_with

Check prefix:

@strings#starts_with("hello world", "hello")  @// true

ends_with

Check suffix:

@strings#ends_with("hello world", "world")  @// true

find

Find first occurrence:

@strings#find("hello world", "world")  @// 6

find_last

Find last occurrence:

@strings#find_last("hello hello", "hello")  @// 6

count

Count occurrences:

@strings#count("hello hello", "hello")  @// 2

Replacing

replace

Replace all occurrences:

@strings#replace("hello world", "world", "draft")  @// "hello draft"

replace_n

Replace first n occurrences:

@strings#replace_n("hello hello", "hello", "hi", 1)  @// "hi hello"

replace_range

Replace range:

@strings#replace_range("hello world", 6, 11, "draft")  @// "hello draft"

Padding

pad_start

Pad at start to reach length:

@strings#pad_start("hello", 10)       @// "     hello"
@strings#pad_start("hello", 10, "0")  @// "00000hello"

pad_end

Pad at end to reach length:

@strings#pad_end("hello", 10)       @// "hello     "
@strings#pad_end("hello", 10, "0")  @// "hello00000"

Substrings

substring

Extract substring:

@strings#substring("hello world", 0, 5)  @// "hello"

slice

Slice with range:

@strings#slice("hello world", 6)     @// "world"
@strings#slice("hello world", 0, 5)  @// "hello"

left

Get leftmost characters:

@strings#left("hello", 3)  @// "hel"

right

Get rightmost characters:

@strings#right("hello", 3)  @// "llo"

Reversing

reverse

Reverse string:

@strings#reverse("hello")  @// "olleh"

reverse_words

Reverse word order:

@strings#reverse_words("hello world")  @// "world hello"

Characters

chars

Get character array:

@strings#chars("hello")  @// ['h', 'e', 'l', 'l', 'o']

length

Get string length:

@strings#length("hello")  @// 5

is_empty

Check if empty:

@strings#is_empty("")  @// true

Validation

is_alpha

Check if all alphabetic:

@strings#is_alpha("hello")  @// true

is_numeric

Check if all numeric:

@strings#is_numeric("12345")  @// true

is_alphanumeric

Check if alphanumeric:

@strings#is_alphanumeric("abc123")  @// true

is_whitespace

Check if all whitespace:

@strings#is_whitespace("   ")  @// true

is_email

Validate email format:

@strings#is_email("user@example.com")  @// true

is_url

Validate URL format:

@strings#is_url("https://example.com")  @// true

is_ipv4

Validate IPv4 address:

@strings#is_ipv4("192.168.1.1")  @// true

Encoding

base64_encode

Encode to Base64:

@strings#base64_encode("hello")  @// "aGVsbG8="

base64_decode

Decode from Base64:

@strings#base64_decode("aGVsbG8=")  @// "hello"

url_encode

URL encode:

@strings#url_encode("hello world")  @// "hello%20world"

url_decode

URL decode:

@strings#url_decode("hello%20world")  @// "hello world"

html_encode

HTML entity encode:

@strings#html_encode("<div>")  @// "&lt;div&gt;"

html_decode

HTML entity decode:

@strings#html_decode("&lt;div&gt;")  @// "<div>"

Hashing

md5

MD5 hash:

@strings#md5("hello")  @// "5d41402abc4b2a76b9719d911017c592"

sha1

SHA-1 hash:

@strings#sha1("hello")  @// "aaf4c61ddcc5e8a2dabede0f3b482cd9aea9434d"

sha256

SHA-256 hash:

@strings#sha256("hello")  @// "2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824"

Formatting

format

Format string with arguments:

@strings#format("Hello, {0}!", "World")  @// "Hello, World!"

template

Template with named placeholders:

@strings#template("Hello, {name}!", {name: "World"})  @// "Hello, World!"

indent

Indent each line:

@strings#indent("hello\nworld", 4)  @// "    hello\n    world"

dedent

Remove common indentation:

@strings#dedent("    hello\n    world")  @// "hello\nworld"

wrap

Wrap text at width:

@strings#wrap("hello world this is a test", 10)
@// "hello\nworld this\nis a test"

truncate

Truncate with ellipsis:

@strings#truncate("hello world", 8)  @// "hello..."

Patterns

wildcard_match

Match with wildcards:

@strings#wildcard_match("hello.txt", "*.txt")  @// true

regex_match

Regular expression match:

@strings#regex_match("hello123", r"\w+\d+")  @// true

regex_replace

Replace with regex:

@strings#regex_replace("hello123", r"\d+", "")  @// "hello"

regex_find_all

Find all regex matches:

@strings#regex_find_all("a1b2c3", r"\d")  @// ["1", "2", "3"]