End of Life Ruby 3.0 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →
instance method
String#clear
string.clear → string
string.c
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static VALUE
rb_str_clear(VALUE str)
{
str_discard(str);
STR_SET_EMBED(str);
STR_SET_EMBED_LEN(str, 0);
RSTRING_PTR(str)[0] = 0;
if (rb_enc_asciicompat(STR_ENC_GET(str)))
ENC_CODERANGE_SET(str, ENC_CODERANGE_7BIT);
else
ENC_CODERANGE_SET(str, ENC_CODERANGE_VALID);
return str;
}
Makes string empty.
Example
a = "abcde" a.clear #=> ""