Perl 6 Deep Dive

Equality and non-equality operators

The two operators == and != compare the two operands for numeric equality or non-equality. In Perl 6, a number of variations of these operators are defined so that they correctly work with operands of different types, as follows:

say 'Equal' if 10 == 10;say 'Not equal' if 3.14 != pi;

If necessary, both operands are converted to Numeric values first:

say 'Also equal' if "10" == 10;

The != operator has a Unicode synonym—≠:

say 'Not equal' if e ≠ pi;

As a funny example, you may also test the !≠ operator, which is constructed similar to how the != operator is assembled—the exclamation sign negates the next character. This works in Perl 6, but avoid using it in practice; use a conventional == instead.

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