In javascript, how to split an array into chunks by breaks? For example,
var array = [0,1,2,3,4,5,6,7,8,9,12,13,15,20]
var breaks = [0,3.5,13]
somefunction(array, breaks) === [[0,1,2,3],[4,5,6,7,8,9,12],[13,15,20]]
// true
The value in breaks does not necessarily in the array.
Another version for reduce, using its optional arguments
breaks.reduce((acc, cur, idx, arr) => {
acc.push(
array.slice(
array.indexOf(cur),
arr[idx+1] ? array.indexOf(arr[idx+1]) : array.length
)
);
return acc;
}, [])
You could use an index for the break array and check the value while iterating array. For each found value add a new array.
var array = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 12, 13, 15, 20],
breaks = [0, 3.5, 13],
index = 0,
result = array.reduce((r, v) => {
if (v >= breaks[index]) {
r.push([]);
++index;
}
r[r.length - 1].push(v);
return r;
}, []);
console.log(result);.as-console-wrapper { max-height: 100% !important; top: 0; }
breaksis referring to values not indices. Why does4get put in the second bin based on a4.5break? That would indicate to me that4should go into the first bin.