Why Does '2' > '10' Evaluate to True in JavaScript?

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Javascript String and Integer Comparisons Mystery Solved

It's often encountered that parameters stored in HTML are compared as integers by JavaScript. However, a peculiar bug arises, where these parameters seem to be interpreted as strings, leading to incorrect integer comparison results.

To illustrate this puzzling issue, consider the following example:

console.log("2" > "10");

Unexpectedly, this statement evaluates to true. This behavior can be attributed to the implicit type coercion in JavaScript. When performing string comparisons, the operands are coerced to strings, resulting in the comparison of lexical values. In this case, "2" is lexically greater than "10", leading to the incorrect result.

To resolve this issue and ensure accurate integer comparisons, it's essential to explicitly parse the strings into integers. This can be achieved using the parseInt function:

alert(parseInt("2", 10) > parseInt("10", 10));

By converting the strings to their numeric equivalents, we guarantee that integer comparison operations are performed on actual numeric values.

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