Get the index of the first element in an array that meets the specified condition

Question

For example, I have an array data = 0 0 0 0 0 0 1 1 1. I want to get the index of the first non-zero element in the array.

Answer 1

Use the function ifirstHit. For example:

data = 0 0 0 0 0 0 1 1 1 
ifirstHit(ne, data, 0)

Output: 6

Answer 2

Find first 1

data.find(1)

Find first non-zero element

data.find(data[data != 0].first())