does not equal operator

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the "does not equal" operator is used in programming to compare two values and evaluate whether they are not the same. different programming languages have different symbols or keywords to represent this operator. below are some common representations in various languages:

**javascript**: `!==` (strict not equal) or `!=` (loose not equal)
**python**: `!=`
**java**: `!=`
**c**: `!=`
**php**: `!=` or `!==` (strict comparison)
**ruby**: `!=`

tutorial on the "does not equal" operator

javascript example



*output:*


in this example, `a` is a number and `b` is a string. the loose comparison (`!=`) converts `b` to a number before comparison, hence they are considered equal. the strict comparison (`!==`) checks both value and type, so they are not equal.

python example



*output:*


in python, the `!=` operator checks for value equality, and since `a` is an integer and `b` is a string, they are not considered equal.

java example



*output:*


in java, you need to convert the string `b` to an integer using `integer.parseint()` for a proper comparison.

c example



*output:*


in c, you also need to convert the string to an integer before comparison.

conclusion

the "does not equal" operator is a fundamental tool in programming used to compare values. understanding how it operates in different languages, especially regarding type coercion (or lack thereof), is crucial for accurate comparisons. always remember to consider the types of the values being compared to avoid unexpected results.

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