In JavaScript, both `==` (equality) and `===` (strict equality) are comparison operators used to compare values. However, there is a key difference between them:
1. Equality Operator (`==`):
- The `==` operator checks for equality of values after performing type coercion if necessary. This means that it converts the operands to the same type before making the comparison.
- If the values are of different types, JavaScript will attempt to convert one or both of the operands to a common type.
- Example:
'5' == 5; // true, as '5' is coerced to a number for comparison
2. Strict Equality Operator (`===`):
- The `===` operator checks for equality of values without performing type coercion. It requires both the values and their types to be the same for the comparison to be true.
- If the values are of different types, `===` returns `false` without attempting to convert them.
- Example:
'5' === 5; // false, as the values are of different types (string and number)
In summary, while `==` performs type coercion to compare values, `===` does not and requires both the values and their types to be identical. It is generally recommended to use `===` for more predictable and safer comparisons, as it avoids unexpected type conversions that can occur with `==`.
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