locale semi-agnostic string to float conversion [JavaScript]

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locale semi-agnostic string to float conversion [JavaScript]

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Last edited Sep 9, 2012

Created on Mar 14, 2012

This example demonstrates a JavaScript utility for converting strings to floating-point numbers, designed to be locale semi-agnostic. It shows how the function handles various numeric formats, including European decimal commas, thousands separators, and ambiguous cases like “1.000” or “2,999.95”, returning numeric values or `NaN` for invalid inputs. The code uses the `toLocaleString()` method to detect the current locale’s decimal and thousands separators, then applies heuristic rules to interpret strings based on separator placement and digit counts. A MooTools click handler triggers the conversion examples, logging results to the console, with an accompanying HTML page featuring a product price display.

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