Usage {{Trim leading | <input> | <prefix> }}
Trims up to six instances of <prefix> (such as: 0 or "anti-") from the beginning of <input>. <Prefix> is set to "0" by default (for removing leading zeroes from numbers). Template will not properly work beyond the first whitespace in the input.
Limitations New code should strongly consider
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or
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.For backward compatibility, both the input and pattern string are trimmed of surrounding whitespace before processing begins. This means you cannot remove three instances of "the " from "the the the thing"; instead you will remove one instance of "the". Examples {{Trim leading |duck duck duck goose |duck}} → duck duck goose
{{Trim leading | duckduckduckgoose |duck}} → goose
{{Trim leading | 00000034 }} → 34
{{Trim leading | aaaaaa34| a }} → 34
{{Trim leading | U+0034|U+}} → 0034
{{Trim leading |anti-anti-neutrino |anti-}} → neutrino
See also
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
