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Perhaps this is a rather newbie-ish question, but I'm curious. I have tried searching for it, but I suppose I lack the correct terminology to search properly.
Difference between != and <>.
On searching again, "inequality", I found one that discusses not == and !=, but nothing about <>.
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!= will only check value regardless of operands type. but !== is used to compare both value & type of 2 operands that are being compared to each other.
==) The strict inequality operator ( !== ) checks whether its two operands are not equal, returning a Boolean result.
The == operator checks if two values are equal. The != operator checks if two values are not equal. It is also known as the loose equality operator because it checks abstract equality, i.e., it tends to convert the data types of operands in order to carry the comparison when two operands aren't of the same data type.
=== (Triple equals) is a strict equality comparison operator in JavaScript, which returns false for the values which are not of a similar type. This operator performs type casting for equality. If we compare 2 with “2” using ===, then it will return a false value.
They are interchangeable in Python 2, but <> is deprecated and has been removed in Python 3.
Python 2.7.5 (default, May 15 2013, 22:44:16) [MSC v.1500 64 bit (AMD64)] on win32
>>> 1 <> 2
True
>>> 1 != 2
True
Python 3.3.2 (v3.3.2:d047928ae3f6, May 16 2013, 00:06:53) [MSC v.1600 64 bit (AMD64)] on win32
>>> 1 <> 2
File "<stdin>", line 1
1 <> 2
^
SyntaxError: invalid syntax
>>> 1 != 2
True
In Python 2.x, <> is equivalent to !=, as described in the documentation:
The forms <> and != are equivalent; for consistency with C, != is preferred; where != is mentioned below <> is also accepted. The <> spelling is considered obsolescent.
In Python 3.x, <> has been removed. Again, the documentation says:
Removed Syntax
....
Removed <> (use != instead).
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