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Native Excel array function to take a horizontal array of clock-in/clock-out times and return total hours
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| =LET(MakeAcc,LAMBDA(item1,item2,MAKEARRAY(2,1,LAMBDA(row,col,IF(row=1,item1,item2)))), | |
| LAMBDA(arr,INDEX(REDUCE({0;-1},FILTER(arr,MAP(arr,LAMBDA(x,ISNUMBER(x))),{0}),LAMBDA(accum,time, | |
| LET(total,INDEX(accum,1),start,INDEX(accum,2), | |
| IF(start<>-1, | |
| MakeAcc(total+(time-start)*24,-1), | |
| MakeAcc(total,time) | |
| ) | |
| ))),1))) |
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