mirror of
https://github.com/gohugoio/hugo.git
synced 2024-11-29 18:22:03 -05:00
20 lines
992 B
Markdown
20 lines
992 B
Markdown
---
|
|
title: safeJS
|
|
description: Declares the provided string as a known safe JavaScript string.
|
|
categories: [functions]
|
|
menu:
|
|
docs:
|
|
parent: functions
|
|
keywords: [strings]
|
|
signature: ["safeJS INPUT"]
|
|
relatedfuncs: []
|
|
---
|
|
|
|
In this context, *safe* means the string encapsulates a known safe EcmaScript5 Expression (e.g., `(x + y * z())`).
|
|
|
|
Template authors are responsible for ensuring that typed expressions do not break the intended precedence and that there is no statement/expression ambiguity as when passing an expression like `{ foo:bar() }\n['foo']()`, which is both a valid expression and a valid program with a very different meaning.
|
|
|
|
Example: Given `hash = "619c16f"` defined in the front matter of your `.md` file:
|
|
|
|
* <span class="good">`<script>var form_{{ .Params.hash | safeJS }};…</script>` → `<script>var form_619c16f;…</script>`</span>
|
|
* <span class="bad">`<script>var form_{{ .Params.hash }};…</script>` → `<script>var form_"619c16f";…</script>`</span>
|