Preferred way to remove whitespace from a string

Question

I want to remove all spaces from a string. " as fa sdf sdfsdf " The result would be: "asfasdfsdfsdf" There are several ways I can think of to achieve this, and I'm wondering which one is the best. 1. ``` "".join(" as fa sdf sdfsdf ".split()) ``` 2. ``` " as fa sdf sdfsdf ".replace(" ", "") ``` And I assume that there are more. Which one is preferred?

Accepted Answer

I believe the best and most efficient method is the second version, `" as fa sdf sdfsdf ".replace(" ", "")`, as evidence you can use the `timeit` module:

`python -m timeit '"".join(" as fa sdf sdfsdf ".split())'`

`1000000 loops, best of 3: 0.554 usec per loop`

`python -m timeit '" as fa sdf sdfsdf ".replace(" ", "")'`

`1000000 loops, best of 3: 0.405 usec per loop`

Preferred way to remove whitespace from a string

Solution

Problem