Merge array into a new array javascript in a loop

2022-01-19 16:39 Aaron imported from Stackoverflow

Hi all i have this loop which will loop 4 times.

for (var i = 0; i < 4; i++){
  var d = [[1111,2222],[3333,4444]]
}

below is my expect output , thank you every much all.

var expected = [ 
 [
   [1111,2222],[3333,4444]
 ], 
 [
   [1111,2222],[3333,4444]
 ], 
 [
   [1111,2222],[3333,4444]
 ], 
 [
   [1111,2222],[3333,4444]
 ]
]

2 answers

answered 2022-01-19 16:43 dporechny

Is that what you tried to achieve?

const output = [];
const input = [[1111,2222],[3333,4444]]
for (var i = 0; i < 4; i++){
  output.push(input)
}
console.log(output) // [[[1111,2222],[3333,4444]], [[1111,2222],[3333,4444]], [[1111,2222],[3333,4444]], [[1111,2222],[3333,4444]]]

answered 2022-01-19 16:44 lucky930

You can get the result like this

    function getNewArray() {
        var newArray = []
        for (var i = 0; i < 4; i++){
            var d = [[1111,2222],[3333,4444]]
            newArray.push(d)
        }
        return newArray;
    }
    
    let expected = getNewArray()

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Merge array into a new array javascript in a loop

2 answers

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