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:timing
:sccache 1

Character¶

Rust supports unicode characters. Notice that emojis are single unicode characters.

In [6]:

let c1 = 'a';
c1

Out[6]:

'a'

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let c2 = '\u{1f604}';
c2

Out[2]:

'😄'

char::from_u32¶

In [5]:

'Z' as u32

Out[5]:

In [2]:

char::from_u32(90)

Out[2]:

Some('Z')

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let c = char::from_u32(0x2764);
c

Out[4]:

Some('❤')

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char::from_digit(9, 10)

Out[6]:

Some('9')

char::to_uppercase returns an interator instead of a char!

In [7]:

'a'.to_uppercase()

Out[7]:

ToUppercase(One('A'))

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'a'.to_uppercase().next()

Out[8]:

Some('A')

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'a'.to_uppercase().next().unwrap()

Out[9]:

'A'

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