Convert array to string in NodeJS

Question

I want to convert an array to string in NodeJS.

var aa = new Array();
aa[\'a\'] = \'aaa\';
aa[\'b\'] = \'bbb\';

console.log(aa.toString());

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Answer 1

toString is a method, so you should add parenthesis () to make the function call.

> a = [1,2,3]
[ 1, 2, 3 ]
> a.toString()
'1,2,3'

Besides, if you want to use strings as keys, then you should consider using a Object instead of Array, and use JSON.stringify to return a string.

> var aa = {}
> aa['a'] = 'aaa'
> JSON.stringify(aa)
'{"a":"aaa","b":"bbb"}'