0.2.0 - Mid migration

web/node_modules/ext/lib/private/decimal-adjust.js

@@ -0,0 +1,29 @@
+// Credit:
+// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/round
+// #Decimal_rounding
+
+"use strict";
+
+var isValue       = require("type/object/is")
+  , ensureInteger = require("type/integer/ensure");
+
+var split = String.prototype.split;
+
+module.exports = function (type) {
+	return function (value/*, exp*/) {
+		value = Number(value);
+		var exp = arguments[1];
+		if (isValue(exp)) exp = ensureInteger(exp);
+		if (!value) return value;
+		if (!exp) return Math[type](value);
+		if (!isFinite(value)) return value;
+
+		// Shift
+		var tokens = split.call(value, "e");
+		value = Math[type](tokens[0] + "e" + ((tokens[1] || 0) - exp));
+
+		// Shift back
+		tokens = value.toString().split("e");
+		return Number(tokens[0] + "e" + (Number(tokens[1] || 0) + exp));
+	};
+};