instance method

String#==

(untyped other) -> bool

self == object → true or false

VALUE
rb_str_equal(VALUE str1, VALUE str2)
{
    if (str1 == str2) return Qtrue;
    if (!RB_TYPE_P(str2, T_STRING)) {
        if (!rb_respond_to(str2, idTo_str)) {
            return Qfalse;
        }
        return rb_equal(str2, str1);
    }
    return rb_str_eql_internal(str1, str2);
}

Returns whether object is equal to self.

When object is a string, returns whether object has the same length and content as self:

Example

s = 'foo'
s == 'foo'  # => true
s == 'food' # => false
s == 'FOO'  # => false

Returns false if the two strings’ encodings are not compatible:

Example

"\u{e4 f6 fc}".encode(Encoding::ISO_8859_1) == ("\u{c4 d6 dc}") # => false

When object is not a string:

If object responds to method to_str, object == self is called and its return value is returned.
If object does not respond to to_str, false is returned.

Related: Comparing.

See also #<=> #=== #<< #=~ also in 4.1 · 3.4 · 3.3 · 3.2 · 3.1 · 3.0

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