fromEntries

Converts an array of {key, value} objects into a map. This is the inverse of entries.

Syntax

fromEntries(array)

or chained:

<array>.fromEntries()

Arguments

• array (array, optional when chained) - An array of objects, each with a key (string) and value field.

Examples

Basic usage

fromEntries([{"key": "a", "value": 1}, {"key": "b", "value": 2}])
// {"a": 1, "b": 2}

Chained usage

[{"key": "name", "value": "Tom"}].fromEntries()
// {"name": "Tom"}

Roundtrip with entries

{"x": 1, "y": 2}.entries().fromEntries()
// {"x": 1, "y": 2}

Build a map from transformed data

["alice", "bob"].map({"key": $this, "value": toUpper($this)}).fromEntries()
// {"alice": "ALICE", "bob": "BOB"}