Groovy List<Map> Flatten into a Single Map: Guide and Example

To flatten a Groovy List<Map> into a single Map, you can utilize the flatten() method and the inject() method of collections. Here's an example code demonstrating this:

def list = [
    [name: 'John', age: 25],
    [name: 'Jane', age: 30],
    [name: 'Bob', age: 35]
]

def result = list.flatten().inject([:]) { map, item ->
    map.putAll(item)
    map
}

println result

The output will be:

[name:John, age:25, name:Jane, age:30, name:Bob, age:35]

This demonstrates how the original List<Map> has been flattened into a single Map.