Why Does \'one\' > \'four\' in JavaScript String Comparisons?

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Why Strings Behave Unpredictably When Compared in JavaScript

Comparing strings in JavaScript can yield unexpected results, as witnessed in the example provided: "one" is deemed greater than "four". This behavior stems from the underlying method of string comparison employed by JavaScript: lexicographical ordering.

Lexicographical ordering is akin to alphabetical ordering, except that it encompasses a wider range of characters. Each character within a string is assigned a corresponding numerical value, and these values are then used to determine the ordering of strings.

In the case of "one" and "four", each of the characters is tested sequentially. Since "o" has a lower numerical value than "f", the prefix "one" consequently ranks lower, resulting in the unexpected outcome of "one" being considered greater than "four".

This same principle applies to other characters as well. For instance, "a" ranks lower than "four", making it the smallest of the three strings being compared. Lexicographical ordering provides a systematic and consistent method of string comparison, ensuring that strings maintain a predictable order across comparisons.

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