mirror of
https://github.com/gohugoio/hugo.git
synced 2024-11-14 20:37:55 -05:00
5fd1e74903
``` git subtree add --prefix=docs/ https://github.com/gohugoio/hugoDocs.git master --squash ``` Closes #11925
38 lines
1.1 KiB
Markdown
38 lines
1.1 KiB
Markdown
---
|
|
title: strings.Substr
|
|
description: Extracts parts of a string from a specified character's position and returns the specified number of characters.
|
|
categories: []
|
|
keywords: []
|
|
action:
|
|
aliases: [substr]
|
|
related: []
|
|
returnType: string
|
|
signatures: ['strings.Substr STRING START [LENGTH]']
|
|
aliases: [/functions/substr]
|
|
---
|
|
|
|
It normally takes two argument: `start` and `length`. It can also take one argument: `start`, i.e. `length` is omitted, in which case the substring starting from start until the end of the string will be returned.
|
|
|
|
To extract characters from the end of the string, use a negative start number.
|
|
|
|
If `length` is given and is negative, that number of characters will be omitted from the end of string.
|
|
|
|
```go-html-template
|
|
{{ substr "abcdef" 0 }} → abcdef
|
|
{{ substr "abcdef" 1 }} → bcdef
|
|
|
|
{{ substr "abcdef" 0 1 }} → a
|
|
{{ substr "abcdef" 1 1 }} → b
|
|
|
|
{{ substr "abcdef" 0 -1 }} → abcde
|
|
{{ substr "abcdef" 1 -1 }} → bcde
|
|
|
|
{{ substr "abcdef" -1 }} → f
|
|
{{ substr "abcdef" -2 }} → ef
|
|
|
|
{{ substr "abcdef" -1 1 }} → f
|
|
{{ substr "abcdef" -2 1 }} → e
|
|
|
|
{{ substr "abcdef" -3 -1 }} → de
|
|
{{ substr "abcdef" -3 -2 }} → d
|
|
```
|