add all frontend files

node_modules/@rc-component/mini-decimal/lib/interface.d.ts

@@ -0,0 +1,17 @@
+export declare type ValueType = string | number;
+export interface DecimalClass {
+    add: (value: ValueType) => DecimalClass;
+    multi: (value: ValueType) => DecimalClass;
+    isEmpty: () => boolean;
+    isNaN: () => boolean;
+    isInvalidate: () => boolean;
+    toNumber: () => number;
+    /**
+     * Parse value as string. Will return empty string if `isInvalidate`.
+     * You can set `safe=false` to get origin string content.
+     */
+    toString: (safe?: boolean) => string;
+    equals: (target: DecimalClass) => boolean;
+    lessEquals: (target: DecimalClass) => boolean;
+    negate: () => DecimalClass;
+}