| Excerpt |
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Finds the value a subdomain value from a valid URL. Input values must be of URL or String type. |
In this implementation, a subdomain value is the first group of characters in the URL after any protocol identifiers ( http:// or https://, for example).
URL literal example:
| D lang syntax |
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| RawWrangle | true |
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| Type | ref |
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| showNote | true |
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| WrangleText | derive type:single value: subdomain('http://www.example.com' ) as: 'myDomain' |
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subdomain('http://www.example.com') |
Output: Returns the value: www.
| D lang syntax |
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| RawWrangle | true |
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| Type | ref |
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| showNote | true |
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| WrangleText | derive type:single value: subdomain('http://www.exampl.e.com') as: 'myDomain' |
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subdomain('http://www.exampl.e.com') |
Output: Returns the value: www.exampl.
Column reference example:
| D lang syntax |
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| RawWrangle | true |
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| Type | ref |
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| showNote | true |
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| WrangleText | derive type:single value: subdomain(myURLs) as: 'myDomain' |
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subdomain(myURLs) |
Output: Returns the subdomain values extracted from the myURLs column.
| D lang syntax |
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| RawWrangle | true |
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| Type | syntax |
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| showNote | true |
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| WrangleText | derive type:single value: subdomain(column_url) |
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subdomain(column_url) |
| Argument | Required? | Data Type | Description |
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| column_url | Y | string | Name of column or String or URL literal containing the sub-domain value to extract |
column_url
Name of the column or URL or String literal whose values are used to extract the subdomain value.
- Missing input values generate missing results.
- Multiple columns and wildcards are not supported.
| Required? | Data Type | Example Value |
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| Yes | String literal or column reference (URL) | http://www.example.com |
Example - Domain, Subdomain, Host, and Suffix functions
| Include Page |
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| EXAMPLE - Domain Functions |
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| EXAMPLE - Domain Functions |
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