var array = [[10, 20, 30, 20, 50], [40, 50, 60, 20, 20], [70, 80, 90, 20, 20], [70, 80, 90, 20, 20]];
For example i want to delete elements == 50
I want this result -> array= [[10,30,20], [40,60,20], [70,90,20], [70,90,20]];
I try this solution but it is not working ->
for (var i = 0; i < array.length; i++) {
for (var j = 0; j < array[i].length; j++) {
if (array[i][j] == 50) {
array[i].splice(j, 1);
}
}
}
You need to collect unwanted indices first and then return.
const
data = [
[10, 20, 30, 20, 50],
[40, 50, 60, 20, 20],
[70, 80, 90, 20, 20],
[70, 80, 90, 20, 20]
],
// ^^ ^^ cols with 50
//
indices = data.reduce(
(r, a) => a.map((v, i) => v === 50 ? false : r[i] ?? true),
[]
),
result = data.map(a => a.filter((_, i) => indices[i]));
result.forEach(a => console.log(...a));const array = [[10, 20, 30, 20, 50], [40, 50, 60, 20, 20], [70, 80, 90, 20, 20], [70, 80, 90, 20, 20]];
const filteredArr = array.map(item => [...new Set(item.filter(i => i !== 50))])
// filterdArr = [[10, 30, 20], [40, 60, 20], [70, 80, 90, 20], [70, 80, 90, 20]];