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Calls the given block with each successive character from +self+;
returns +self+:
'hello'.each_char {|char| print char, ' ' }
print "\n"
'тест'.each_char {|char| print char, ' ' }
print "\n"
'こんにちは'.each_char {|char| print char, ' ' }
print "\n"
Output:
h e l l o
т е с т
こ ん に ち は
Returns an enumerator if no block is given.
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