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node_modules/ext/docs/math/floor-10.md

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+# `Math.floor10` _(ext/math/floor-10)_
+
+Decimal floor
+
+```javascript
+const floor10 = require("ext/math/floor-10");
+
+floor10(55.59, -1); // 55.5
+floor10(59, 1); // 50
+```