instance method

String#each_codepoint

() -> ::Enumerator[::Integer, self]

() { (::Integer codepoint) -> void } -> self

each_codepoint {|codepoint| ... } → self

each_codepoint → enumerator

static VALUE
rb_str_each_codepoint(VALUE str)
{
    RETURN_SIZED_ENUMERATOR(str, 0, 0, rb_str_each_char_size);
    return rb_str_enumerate_codepoints(str, 0);
}

With a block given, calls the block with each successive codepoint from self; each codepoint is the integer value for a character; returns self:

Example

a = []
'hello'.each_codepoint do |codepoint|
  a.push(codepoint)
end
a # => [104, 101, 108, 108, 111]
a = []
'тест'.each_codepoint do |codepoint|
  a.push(codepoint)
end
a # => [1090, 1077, 1089, 1090]
a = []
'こんにちは'.each_codepoint do |codepoint|
  a.push(codepoint)
end
a # => [12371, 12435, 12395, 12385, 12399]

With no block given, returns an enumerator.

Related: see Iterating.

See also #each_char #each_grapheme_cluster #each_byte #each_line also in 4.1 · 3.4 · 3.3 · 3.2 · 3.1 · 3.0

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