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19 lines
589 B
JavaScript
19 lines
589 B
JavaScript
/*
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* Copyright (c) 2026 by Christian Kellner.
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* Licensed under Apache-2.0 with Commons Clause and Attribution/Naming Clause
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*/
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/**
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* Extract the first number from a string like "1.234 €" or "70 m²".
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* Removes dots/commas before parsing. Returns null on invalid input.
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* @param {string|undefined|null} str
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* @returns {number|null}
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*/
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export const extractNumber = (str) => {
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if (str == null) return 0;
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if (typeof str === 'number') return str;
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const cleaned = str.replace(/\./g, '').replace(',', '.');
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const num = parseFloat(cleaned);
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return isNaN(num) ? null : num;
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};
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