Improved chaining options

src/document.ts

@@ -92,31 +92,34 @@ export default class MarkdownDocument {
    * Update the markdown content for the document
    * @param newValue The new markdown content for the document
    */
-  setMarkdown(newValue: string) {
+  setMarkdown(newValue: string): MarkdownDocument {
     this._markdown = newValue;
     this._content = combineMarkdownAndFrontmatter(newValue, this.frontmatter);
     this.contentHistory.push(this._content);
+    return this;
   }
 
   /**
    * Update the frontmatter of the document
    * @param newValue The new frontmatter shape for this document
    */
-  setFrontmatter(newValue: FrontmatterShape) {
+  setFrontmatter(newValue: FrontmatterShape): MarkdownDocument {
     this._frontmatter = newValue;
     this._content = combineMarkdownAndFrontmatter(this._markdown, newValue);
     this.contentHistory.push(this._content);
+    return this;
   }
 
   /**
    * Update the full content of the doc with a combination of markdown and yaml frontmatter
    * @param newValue The full content of the document to set
    */
-  setContent(newValue: string) {
+  setContent(newValue: string): MarkdownDocument {
     this._content = newValue;
     this._frontmatter = extractFrontmatter(newValue);
     this._markdown = extractMarkdown(newValue);
     this.contentHistory.push(this._content);
+    return this;
   }
 
   /**
@@ -150,7 +153,7 @@ export default class MarkdownDocument {
   /**
    * Revert this document to its original loaded content
    */
-  revert() {
+  revert(): MarkdownDocument {
     const originalCopy = this.contentHistory[0];
 
     if (originalCopy === undefined) {
@@ -158,17 +161,20 @@ export default class MarkdownDocument {
     }
 
     this.setContent(originalCopy);
+    return this;
   }
 
   /**
    * Write this document back to disk
    */
-  write() {
+  write(): MarkdownDocument {
     writeFileSync(
       this.path,
       combineMarkdownAndFrontmatter(this._markdown, this.frontmatter),
       "utf-8",
     );
+
+    return this;
   }
 
   /** The markdown portion of the file (without frontmatter) */

src/vault.ts

@@ -77,7 +77,7 @@ class VaultView {
    * @param fn A function to map over every document in this view
    * @returns A reference to this view to chain additional calls
    */
-  process(fn: (document: MarkdownDocument) => void) {
+  process(fn: (document: MarkdownDocument) => void): VaultView {
     this.documents.forEach(fn);
     return this;
   }
@@ -127,7 +127,7 @@ export default class Vault {
     this.index = buildVaultIndex(allFiles);
   }
 
-  scope(fn: (document: MarkdownDocument) => boolean) {
+  scope(fn: (document: MarkdownDocument) => boolean): VaultView {
     const matchingDocs = this.documents.filter(fn);
     return new VaultView(matchingDocs, this);
   }
@@ -137,14 +137,16 @@ export default class Vault {
    * @param fn A function to map over every document in this vault
    * @returns A reference to this vault to chain additional calls
    */
-  process(fn: (document: MarkdownDocument) => void) {
+  process(fn: (document: MarkdownDocument) => void): Vault {
     this.documents.forEach(fn);
     return this;
   }
 
-  write() {
+  write(): Vault {
     this.documents.forEach((doc) => {
       doc.write();
     });
+
+    return this;
   }
 }