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instance method

String#chop!

() -> self?

chop! → self or nil

static VALUE
rb_str_chop_bang(VALUE str)
{
    str_modify_keep_cr(str);
    if (RSTRING_LEN(str) > 0) {
        rb_len_t len;
        len = chopped_length(str);
        STR_SET_LEN(str, len);
        TERM_FILL(&RSTRING_PTR(str)[len], TERM_LEN(str));
        if (ENC_CODERANGE(str) != ENC_CODERANGE_7BIT) {
            ENC_CODERANGE_CLEAR(str);
        }
        return str;
    }
    return Qnil;
}

Like String#chop, except that:

Removes trailing characters from self (not from a copy of self).
Returns self if any characters are removed, nil otherwise.

Related: see Modifying.

See also #chop #chr #chomp! #clear also in 4.0 · 3.4 · 3.3 · 3.2 · 3.1 · 3.0

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