# Find matching value

Python, List · Nov 2, 2020

Finds the value of the first element in the given list that satisfies the provided testing function.

- Use a list comprehension and
`next()`

to return the first element in`lst`

for which`fn`

returns`True`

.

```
def find(lst, fn):
return next(x for x in lst if fn(x))
```

`find([1, 2, 3, 4], lambda n: n % 2 == 1) # 1`