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File types
sjs-4
Bucket
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File
Attributes
attrInt32
attrStr
chainAttrInt32
chainAttrStr
hasAttrInt32
hasAttrStr
listAttrInt32
listAttrStr
removeAttrInt32
removeAttrStr
Execution
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Mutation
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User
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app-1
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page-1
redirect-301
sh-1
static-1
svg-1
deprecated types
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Filesystem Query Language
Reserved namespaces
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Turbo CSS
Blog
Developer
Intros
How it works
API reference
Turbo CSS
Blog
File types
sjs-4
Bucket
Collection
File
Attributes
attrInt32
attrStr
chainAttrInt32
chainAttrStr
hasAttrInt32
hasAttrStr
listAttrInt32
listAttrStr
removeAttrInt32
removeAttrStr
Execution
Misc
Mutation
Properties
Traversal
Injected variables
User
os
util
Modules
sjs-4e
sjs-4et
app-1
buckets-1
contextmenu-1
css-1
css-2
css-2-wrapper
html-1
image-1
markdown-1
page-1
redirect-301
sh-1
static-1
svg-1
deprecated types
File links
App interface
Hotkeys & mouse controls
Nocode editor API
Filesystem Query Language
Reserved namespaces
Filesystem interface versions
URL endpoints
URL query parameters
File.prototype.hasAttrStr()
Reports whether file has given string attribute defined.
Syntax
file.hasAttrStr(key string) boolean
Parameters
key string
Name of the attribute.
Examples
Basic example.
var f = new File() f.attrStr("foo", "bar") var p = '' p += f.hasAttrStr("foo") + "\n" p += f.hasAttrStr("undefined") + "\n" response.body(p)
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