Creating an array within an object within an object

Question

Using Javascript, how do I create an array within an object that's within an object, so that my value is stored at: main[1].type[1][0]

I have tried and my code which does not work is as follows:

let main = []

main[1] = {type: {1:['Value1', 'Value2']}, {2:['Value3', 'Value4']}};

console.log(main[1].type[0][1]);

I expect main[1].type[1][0] to be 'Value1' but it is undefined

Answer 1

You're not getting undefined. You have a syntax error. A comma should either be separating array values, or separating object entries. You have a comma here, in an object, so it is expected to have a key after it, not a {

main[1] = {type: {1:['Value1', 'Value2']}, {2:['Value3', 'Value4']}};
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                           Remove the } and { around this comma

Remove the } and { around the comma so that {1:['Value1', 'Value2'], 2:['Value3', 'Value4']} becomes a single object with two keys:

const main = [];

main[1] = {type: {1:['Value1', 'Value2'], 2:['Value3', 'Value4']}};

console.log( main[1].type[1][0] );