gives information about the expression expr.


gives the value of the property prop for expr.


gives information about all of the expri.

Details and Options


open allclose all

Basic Examples  (3)

Get information about the Sin function:

Use the special input form:

Display just the usage message:

Get the Attributes for the Sin function:

Get information about a specific Databin:

Extract just the creation date for the bin:

Scope  (25)

Symbols  (3)

For built-in symbols, Information gives attributes, defaults, and options, as well as usage messages:

For user-defined symbols, Information gives definitions as well:

For string patterns, Information gives a clickable list of matching symbols:

Give the pattern using StringExpression:

Data Objects  (12)

Information on TemporalData expressions includes information about the paths included:

TemporalData objects, including TimeSeries and EventSeries, may include optional metadata:

DateObject expressions include the calendar, time zone and granularity:

TimeObject information includes the time zone and granularity for the given time:

Information on Quantity expressions includes the physical dimensions and SI base unit:

Information on QuantityVariable expressions includes the physical dimensions and canonical unit:

Entity expressions include different sample properties depending on the EntityTypeName:

The "Full Dataset..." link may be used to generate a full dataset of available properties:

Information includes a count of how many entities are contained in an EntityClass expression:

Implicit EntityClass expressions include additional properties:

EntityProperty expressions include a description, source, unit and other annotations including qualifiers:

EntityPropertyClass expressions include a list of EntityProperties in the class:

Get information about an Image object:

Get information about an Audio object:

Get information about a Video object:

System Objects  (10)

Information for Databin expressions includes the full bin specification, creation date and other details:

Get the list of available properties from the Information expression:

Get relevant information on a CloudObject expression:

List available properties:

Specific properties can be fetched with an explicit property specification:

File objects include some platform-specific properties, using information from the operating system:

URL information decodes information from the input URL:

Loaded LibraryFunction expressions include information about the source function:

NotebookObject expressions include details about the state of a Notebook expression:

ProcessObject information includes the exit code associated with the process:

PacletObject information includes details about a paclet:

ChannelObject information includes the channel's metadata and information about its location on the channel broker server:

ChannelListener information includes properties of the channel listener and the channel associated with it:

Options  (1)

ResolveContextAliases  (1)

Information[patt] resolves context aliases by default:

Use the ResolveContextAliases option to prevent alias resolution:

Only patterns that match the actual symbol name will produce information with this option set to False:

Properties & Relations  (6)

For symbol inputs, if no usage message exists, Information gives the symbol name only, including the context:

Add a usage message:

Information threads over its arguments:

?? is the same as Information:

? is the same as Information with a default closed state:

For functions without a usage message, ? and ?? are the same:

For a read-protected symbol, no definitions are printed:

Possible Issues  (1)

Information[symbol] gives information about the value of symbol if it has one:

Use Information["symbolName"] to get information about the symbol itself:

Alternatively, use Unevaluated[symbol]:

Wolfram Research (1988), Information, Wolfram Language function, (updated 2021).


Wolfram Research (1988), Information, Wolfram Language function, (updated 2021).


Wolfram Language. 1988. "Information." Wolfram Language & System Documentation Center. Wolfram Research. Last Modified 2021.


Wolfram Language. (1988). Information. Wolfram Language & System Documentation Center. Retrieved from


@misc{reference.wolfram_2024_information, author="Wolfram Research", title="{Information}", year="2021", howpublished="\url{}", note=[Accessed: 24-June-2024 ]}


@online{reference.wolfram_2024_information, organization={Wolfram Research}, title={Information}, year={2021}, url={}, note=[Accessed: 24-June-2024 ]}