Should you use == or ===?

Question

The strict equality operator ( === ) behaves identically to the abstract equality operator ( == ) except no type conversion is done, and the types must be .When should you use === vs ==, !== vs !=, etc.. in javascript?Should I use == or === In Javascript? [duplicate] - Stack OverflowPython None comparison: should I use "is" or ==? - Stack OverflowThe importance of using === instead of == in php! - Stack OverflowДругие результаты с сайта stackoverflow.com

Should I use == or ===?

== in JavaScript is used for comparing two variables, but it ignores the datatype of variable. === is used for comparing two variables, but this operator also checks datatype and compares two values. Checks the equality of two operands without considering their type. Compares equality of two operands with their types.

Why do we use === instead of ==?

Use === if you want to compare couple of things in JavaScript, it's called strict equality, it means this will return true if only both type and value are the same, so there wouldn't be any unwanted type correction for you, if you using == , you basically don't care about the type and in many cases you could face ...

Which is faster == or ===?

Equality operator == converts the data type temporarily to see if its value is equal to the other operand, whereas === (the identity operator) doesn't need to do any type casting and thus less work is done, which makes it faster than ==.

Should I use == or is in Python?

The == operator compares the value or equality of two objects, whereas the Python is operator checks whether two variables point to the same object in memory. In the vast majority of cases, this means you should use the equality operators == and != , except when you're comparing to None .

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