Add strong default style

demo/2-declaritive-styles.ts

@@ -40,9 +40,9 @@ const doc = new Document({
             },
             listParagraph: {
                 run: {
-                    color: '#FF0000'
+                    color: "#FF0000",
-                }
+                },
-            }
+            },
         },
         paragraphStyles: [
             {
@@ -161,6 +161,18 @@ doc.addSection({
                 }),
             ],
         }),
+        new Paragraph({
+            style: "Strong",
+            children: [
+                new TextRun({
+                    text: "Strong Style",
+                }),
+                new TextRun({
+                    text:
+                        " - Very strong.",
+                }),
+            ],
+        }),
     ],
 });
 

src/file/styles/factory.ts

@@ -16,6 +16,7 @@ import {
     IBaseCharacterStyleOptions,
     IBaseParagraphStyleOptions,
     ListParagraph,
+    StrongStyle,
     TitleStyle,
 } from "./style";
 
@@ -28,6 +29,7 @@ export interface IDefaultStylesOptions {
     readonly heading4?: IBaseParagraphStyleOptions;
     readonly heading5?: IBaseParagraphStyleOptions;
     readonly heading6?: IBaseParagraphStyleOptions;
+    readonly strong?: IBaseParagraphStyleOptions;
     readonly listParagraph?: IBaseParagraphStyleOptions;
     readonly hyperlink?: IBaseCharacterStyleOptions;
     readonly footnoteReference?: IBaseCharacterStyleOptions;
@@ -95,6 +97,12 @@ export class DefaultStylesFactory {
                     },
                     ...options.heading6,
                 }),
+                new StrongStyle({
+                    run: {
+                        bold: true,
+                    },
+                    ...options.strong,
+                }),
                 new ListParagraph(options.listParagraph || {}),
                 new HyperlinkStyle(options.hyperlink || {}),
                 new FootnoteReferenceStyle(options.footnoteReference || {}),

src/file/styles/style/default-styles.spec.ts

@@ -120,6 +120,20 @@ describe("Default Styles", () => {
         });
     });
 
+    it("StrongStyle#constructor", () => {
+        const style = new defaultStyles.StrongStyle({});
+        const tree = new Formatter().format(style);
+        expect(tree).to.deep.equal({
+            "w:style": [
+                { _attr: { "w:type": "paragraph", "w:styleId": "Strong" } },
+                { "w:name": { _attr: { "w:val": "Strong" } } },
+                { "w:basedOn": { _attr: { "w:val": "Normal" } } },
+                { "w:next": { _attr: { "w:val": "Normal" } } },
+                { "w:qFormat": EMPTY_OBJECT },
+            ],
+        });
+    });
+
     it("ListParagraph#constructor", () => {
         const style = new defaultStyles.ListParagraph({});
         const tree = new Formatter().format(style);

src/file/styles/style/default-styles.ts

@@ -84,6 +84,16 @@ export class Heading6Style extends HeadingStyle {
     }
 }
 
+export class StrongStyle extends HeadingStyle {
+    constructor(options: IBaseParagraphStyleOptions) {
+        super({
+            ...options,
+            id: "Strong",
+            name: "Strong",
+        });
+    }
+}
+
 export class ListParagraph extends StyleForParagraph {
     constructor(options: IBaseParagraphStyleOptions) {
         super({