javascript create array with repeated values
Array(5).fill(2)
//=> [2, 2, 2, 2, 2]javascript create array with repeated values
Array(5).fill(2)
//=> [2, 2, 2, 2, 2]how to count duplicates in an array javascript
arr.reduce((b,c)=>((b[b.findIndex(d=>d.el===c)]||b[b.push({el:c,count:0})-1]).count++,b),[]);Copyright © 2021 Codeinu
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