Multidimensional Array in Dart [List]

Question

I was trying to create a nested list or multidimensional array where a key may have multiple values and I want to access only one particular value of that key's values.

void main()
{

  var family = {"Nabi": "Delowar", "Zerin" : ["Taheem", "Ayan"], "Nipa" : "Faizan"};

  print(family['Zerin[0]']); // this doesn't work

  print(family['Zerin']); // this prints ["Taheem", "Ayan"]

}

I want the output of Zerin[0] to be Taheem

Günter Zöchbauer · Accepted Answer · 2018-12-22 12:25:24Z

2

First get the array from the Map with key 'Zerin' then get the item at index 0

print(family['Zerin'][0]);

answered Dec 22, 2018 at 12:25

Günter Zöchbauer

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4 Comments

Delowar Hossain Over a year ago

var dd =family['Zerin']; print(dd[0]); // not working // The following works for(String d in dd) { print(d); }

Delowar Hossain Over a year ago

got it. without using var dd = ... I need to use List dd = ...

Günter Zöchbauer Over a year ago

It should work when you run it, it's just that static analysis can't know it's a List.

Delowar Hossain Over a year ago

neither did i know. So, I ran print(dd.runtimeType); to find out

Deepak swain · Accepted Answer · 2020-03-04 15:21:36Z

1

Try This

for (var key in family.keys) {
    print(key); // "Nabi", "Zerin", "Nipa"
}

for (var value in family.values) {
    print(value); // "Delowar", ["Taheem", "Ayan"], "Faizan"
}

answered Mar 4, 2020 at 15:21

Deepak swain

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