ESM: Ported Base58, Base and BCD operations

src/core/operations/ToBase.mjs

@@ -0,0 +1,53 @@
+/**
+ * @author n1474335 [n1474335@gmail.com]
+ * @copyright Crown Copyright 2016
+ * @license Apache-2.0
+ */
+
+import Operation from "../Operation";
+import OperationError from "../errors/OperationError";
+
+/**
+ * To Base operation
+ */
+class ToBase extends Operation {
+
+    /**
+     * ToBase constructor
+     */
+    constructor() {
+        super();
+
+        this.name = "To Base";
+        this.module = "Default";
+        this.description = "Converts a decimal number to a given numerical base.";
+        this.inputType = "BigNumber";
+        this.outputType = "string";
+        this.args = [
+            {
+                "name": "Radix",
+                "type": "number",
+                "value": 36
+            }
+        ];
+    }
+
+    /**
+     * @param {BigNumber} input
+     * @param {Object[]} args
+     * @returns {string}
+     */
+    run(input, args) {
+        if (!input) {
+            throw new OperationError("Error: Input must be a number");
+        }
+        const radix = args[0];
+        if (radix < 2 || radix > 36) {
+            throw new OperationError("Error: Radix argument must be between 2 and 36");
+        }
+        return input.toString(radix);
+    }
+
+}
+
+export default ToBase;