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This template is used on approximately 2,970,000 pages, or roughly 4% of all pages ./sandbox or /testcases subpages, or in your own user subpage . The tested changes can be added to this page in a single edit. Consider discussing changes on the talk page before implementing them.
This template is for trimming whitespace from strings. For the maintenance tag for images, see { { trimming } }
This template trims leading and trailing (but not interior) whitespace from a string. The string should be passed as the first unnamed parameter. The parameter must be named | 1 = = character.
You may substitute this template— that is, if this template is used as { { subst:trim } }
{ { trim | text } } text with any leading or trailing whitespace removed.
"{ { trim | abc} } abc "
"{ { trim | xyz } } xyz "
"{ { trim | abc xyz } } abc xyz "
Template parameters
Parameter Description Type Status String 1The string to be trimmed of whitespace
String required
String-handling templates
(help page)
Substring (select chunk of string by its position)
{ { str sub new } } Select a substring based on starting and ending index counted in either direction. { { str left } } Keep the first N characters of a string, or duplicate it to N characters. { { str crop } } Return all but the last N characters of a string. { { str index } } Return the N-th character of a string.
{ { str right } } Return substring starting at N-th character to end of string. { { str rightc } } Return the last N characters of a string; or a given value if empty. { { str sub old } } Return substring of given length starting at N-th character.
Trimming (select/remove chunk of string by character type)
Select/remove specific item from string
{ { delink } } { { trim brackets } } Removes wikilink brackets (wikicode); all or outer only . { { Plain text } } Removes wikicode (formatting and brackets) { { PAGENAMEBASE } } Trim off any parenthesis text at the end of a string (disambiguation). { { title disambig text } } Returns text in parentheses at the end of a string (disambiguation).
{ { title year } } Returns the 3-or-4-digit year from a pagename, if any. { { title decade } } Returns the 4-digit decade from a pagename (e.g. "1740" from "Foo 1740s bar"), if any. { { title number } } Returns any number from a pagename. { { WikiProjectbasename } } Removes "WikiProject" from a pagename.
Insertion, replacement, and length
{ { loop } } Repeat character string a specified number of times. { { replace } } Returns the string, after replacing all occurrences of a specified string with another string. { { str rep } } Returns the string, after replacing the first occurrence of a specified string with another string. { { digits } } Returns the string, after removing all characters that are not digits 0–9 { { Nowiki } } Displays wikitext as plain text.
{ { str len } } Returns a string's length. { { str ≥ len } } Check if a string is "longer or equally long" or "shorter" than a given length. { { str ≤ len } } Check if a string is "shorter or equally long" or "longer" than a given length. { { str ≠ len } } Check if a string is "not equal" or "equal" to a given length.
Analysis and searching
{ { Array } } Array item manipulation and retrieval. { { a or an } } Takes a noun and produces the appropriate indefinite article, based on whether the first letter is a vowel. { { in string } } Returns optional string when given string is not found { { Isnumeric } } Returns number when true, blank when not numeric. { { str letter } } Returns the number of letters that begin a string. { { str number } } Returns the number of numbers that begin a string.
Modules and built-in functions
