Length might have mattered in the 80s and 90s when IDEs were crap but we got autocomplete in pretty much all our text editors (even TUI ones like vim).
As for readability there is an argument to be had in specific contexts, but 9 out of 10 times it makes more sense to use a proper word.
Example:
let list = [1, 2, 3];
for i in list {
println!("{}", i);
}
In this case using item in the place of i would be more fitting.
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Naming variables by single letters is faster than a full 10-15 character word. Also sometimes more readable depending on context.
Length might have mattered in the 80s and 90s when IDEs were crap but we got autocomplete in pretty much all our text editors (even TUI ones like vim).
As for readability there is an argument to be had in specific contexts, but 9 out of 10 times it makes more sense to use a proper word.
Example:
In this case using
itemin the place ofiwould be more fitting.