apoc.map.values
Syntax |
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Description |
Returns a |
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Arguments |
Name |
Type |
Description |
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A map to extract values from. |
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A list of keys to extract from the given map. The default is: |
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Whether or not to return missing values as null values. The default is: |
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Returns |
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Usage Examples
The following examples return a list of values for the keys name
and country
, and a null
value for the missing key missingKey
, using both APOC and Cypher:
WITH {name:"Cristiano Ronaldo",country:"Portugal",dob:date("1985-02-05")} AS map
RETURN apoc.map.values(map, ["name", "country", "missingKey"], true) AS output
WITH {name:"Cristiano Ronaldo",country:"Portugal",dob:date("1985-02-05")} AS map
RETURN [map["name"], map["country"], map["missingKey"]] AS output
WITH {name:"Cristiano Ronaldo",country:"Portugal",dob:date("1985-02-05")} AS map
RETURN COLLECT {
UNWIND ["name", "country", "missingKey"] AS key
RETURN map[key]
} AS output
output |
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["Cristiano Ronaldo","Portugal",null] |
The following examples return a list of values for the keys name
and country
, but nothing for the missing key missingKey
, using both APOC and Cypher:
WITH {name:"Cristiano Ronaldo",country:"Portugal",dob:date("1985-02-05")} AS map
RETURN apoc.map.values(map, ["name", "country", "missingKey"], false) AS output
WITH {name:"Cristiano Ronaldo",country:"Portugal",dob:date("1985-02-05")} AS map
UNWIND ["name", "country", "missingKey"] AS key
RETURN collect(map[key])
output |
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["Cristiano Ronaldo","Portugal"] |