How do I output an array with nested arrays into a single string without commas?

Question

How do I output an array with nested arrays into a single string without commas?

let array = [
 ["1", "2"],
"3",
 ["4", ["5", "6"] ]
]

alert(array.toString())
// 1, 2, 3, 4, 5, 6

alert(array.join("))
// 1, 2 3 4, 5, 6
// A need: 1 2 3 4 5 6

I need the most simple way to take this array and nested arrays in one line without commas. toString displays with commas, Join not working with nested arrays

JavaScript

dax_Willm asked April 19th 20 at 12:22

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More answers about "How do I output an array with nested arrays into a single string without commas?"

3 answers

alysha.Ha answered on April 19th 20 at 12:28

https://repl.it/repls/TurquoiseRottenEmbeds

function _(array) {
 const result = [];
 array.forEach(element => 
 Array.isArray(element) 
 ? result.push(..._(element)) 
 : result.push(element));
 return result;
}

let array = [
 ["1", "2"],
"3",
 ["4", ["5", "6"] ]
]

console.log(_(array).join(' '))

Fu fu fu - mervin commented on April 19th 20 at 12:31

@mervinwhat fu fu fu? Constructively please. - alysha.Ha commented on April 19th 20 at 12:34

@alysha.Ha, there is method flat(), which is already out of the box can more than your function with a strange name. So why complicate things? - mervin commented on April 19th 20 at 12:37

@mervin, there is a method, and you used the wrong. I solved the problem. The name is not strange, but with a hint that there is a built-in method "flat". - alysha.Ha commented on April 19th 20 at 12:40

@alysha.Ha, Oh well =) - mervin commented on April 19th 20 at 12:43

John_Kuvalis answered on · Accepted Answer · 2020-04-19T10:24:52.724Z

const array = [
 ["1", "2"],
"3",
 ["4", ["5", "6"], ["7", "8"] ],
 ["9", "10", ["11", "42"]]
]

const res = array.flat(Infinity).join(" ");
console.log(res);

mervin answered on · Accepted Answer · 2020-04-19T10:26:52.724Z

mervin answered on April 19th 20 at 12:26

Solution

alert(array.flat(Infinity).join(' '));

anyway, the comma is one in a three-dimensional array, I have an unlimited number of attachments - dax_Willm commented on April 19th 20 at 12:29

@dax_Willm, try again, I immediately noticed that you have over gaps - mervin commented on April 19th 20 at 12:32

@mervin, does not work, all the same, the comma between the 5 and 6 - dax_Willm commented on April 19th 20 at 12:35

@dax_Willm, and now?) - mervin commented on April 19th 20 at 12:38