rustHow to clear a Rust HashMap?
To clear a Rust HashMap
, use the clear()
method. This method will remove all elements from the HashMap
.
Example
use std::collections::HashMap;
let mut map = HashMap::new();
map.insert("a", 1);
map.insert("b", 2);
map.clear();
assert!(map.is_empty());
Output example
The clear()
method takes no arguments and returns nothing. It simply removes all elements from the HashMap
.
Helpful links
Related
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- How to use a custom hash function with a Rust HashMap?
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