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Associative array/Merging: Difference between revisions
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key: year, value: 1974
</pre>
=={{header|Dart}}==
<lang javascript>
main() {
var base = {
'name': 'Rocket Skates',
'price': 12.75,
'color': 'yellow'
};
var newData = {
'price': 15.25,
'color': 'red',
'year': 1974
};
var updated = Map.from( base ) // create new Map from base
..addAll( newData ); // use cascade operator to add all new data
assert( base.toString() == '{name: Rocket Skates, price: 12.75, color: yellow}' );
assert( updated.toString() == '{name: Rocket Skates, price: 15.25, color: red, year: 1974}');
}
</lang>
=={{header|Factor}}==
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