NilClass#=~

nil =~ object → nil

static VALUE
nil_match(VALUE obj1, VALUE obj2)
{
    return Qnil;
}

Returns nil.

This method makes it useful to write:

Example

while gets =~ /re/
  # ...
end

See also #=== #^ #& #| also in 4.1 · 4.0 · 3.4 · 3.2 · 3.1 · 3.0