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Split the array into pairs in JavaScript wit Array Reduce
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| var arr = [1,5,6,7,4,8,5]; | |
| arr.reduce((previous, current, index, array)=>{ | |
| return index%2==0 ? [...previous, array.slice(index,index+2)] : previous | |
| },[]) | |
| //>[[1,5],[6,7],[4,8],[5]] | |
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