How can I iterate over nested arrays with recursion? [duplicate]

Question

How can I iterate over nested arrays like this with recursion in javascript:

var a = [10, [1, [2,2,2], 3], 20, 'Hallo']

In Python it looks like this:

def foo1(L):
    for i in L:
        if not isinstance(i, list):
            print(i)
        else:
            foo1(i)

foo1(a)

How can I write if not isinstance(i, list): in javascript?

maybe this stackoverflow.com/q/45708712/1447675 or stackoverflow.com/q/53998384/1447675 helps ... — Nina Scholz
– Nina Scholz, Commented Apr 3, 2019 at 10:07

Pedro Lobito · Accepted Answer · 2019-04-03 12:54:57Z

0

You can use:

var a = [10, [1, [2,2,2], 3], 20, 'Hallo']

for (let item of a) {
    if (!Array.isArray(item)){
      console.log("Not array", item);
    }else{
      console.log("Array", item);
    }
}

answered Apr 3, 2019 at 12:54

Pedro Lobito

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