Declarative styles

src/file/paragraph/run/index.ts

@@ -4,3 +4,4 @@ export * from "./symbol-run";
 export * from "./picture-run";
 export * from "./run-fonts";
 export * from "./sequential-identifier";
+export * from "./underline";

src/file/paragraph/run/underline.spec.ts

@@ -27,7 +27,7 @@ describe("Underline", () => {
         });
 
         it("should use the given style type and color", () => {
-            const underline = new u.Underline("double", "FF00CC");
+            const underline = new u.Underline(u.UnderlineType.DOUBLE, "FF00CC");
             const tree = new Formatter().format(underline);
             expect(tree).to.deep.equal({
                 "w:u": { _attr: { "w:val": "double", "w:color": "FF00CC" } },

src/file/paragraph/run/underline.ts

@@ -33,7 +33,7 @@ export abstract class BaseUnderline extends XmlComponent {
 }
 
 export class Underline extends BaseUnderline {
-    constructor(underlineType: string = "single", color?: string) {
+    constructor(underlineType: UnderlineType = UnderlineType.SINGLE, color?: string) {
         super(underlineType, color);
     }
 }