Create a new snippet from a blank template.

Smz-CommentRemoval.WORD.yaml

name: Smz-CommentRemoval
description: Create a new snippet from a blank template.
host: WORD
api_set: {}
script:
  content: |
    $("#run").click(() => tryCatch(run));

    async function removeCommentsFromXML(xmlString) {
      let xmlText = "";
      try {
        // initialize DOM parser
        let parser = new DOMParser();
        let namespace = [];

        // parse XML string into XML DOM object
        let xmlDoc = parser.parseFromString(xmlString, "text/xml");

        // get xml namespace prefix for 'pkg'
        namespace["pkg"] = xmlDoc.documentElement.getAttribute("xmlns:pkg");

        // get all 'pkg:part' nodes
        let allChildrenNodes = xmlDoc.getElementsByTagNameNS(namespace["pkg"], "part");

        // delete comments.xml node in pkg:part
        let currentChildNode = allChildrenNodes[0];
        while (currentChildNode !== null && currentChildNode.getAttribute("pkg:name").match("comments.xml") === null) {
          currentChildNode = currentChildNode.nextSibling;
        }
        if (currentChildNode !== null) currentChildNode.parentNode.removeChild(currentChildNode);

        // get document relationship package
        currentChildNode = allChildrenNodes[0];
        while (currentChildNode !== null && currentChildNode.getAttribute("pkg:name").match("word/_rels") === null) {
          currentChildNode = currentChildNode.nextSibling;
        }

        // get all relationships
        let relationships = currentChildNode.getElementsByTagName("Relationship");

        // delete comment relationship from relationships
        let currentRelationship = relationships[0];
        while (currentRelationship !== null && currentRelationship.getAttribute("Target").match("comments.xml") === null) {
          currentRelationship = currentRelationship.nextSibling;
        }
        if (currentRelationship !== null) currentRelationship.parentNode.removeChild(currentRelationship);

        // get main document
        currentChildNode = allChildrenNodes[0];
        while (
          currentChildNode !== null &&
          currentChildNode.getAttribute("pkg:name").match("/word/document.xml") === null
        ) {
          currentChildNode = currentChildNode.nextSibling;
        }

        // get w namespace
        namespace["w"] = currentChildNode.childNodes[0].childNodes[0].getAttribute("xmlns:w");

        // get commentRangeStart nodes
        let commentRangeStartNodes = currentChildNode.getElementsByTagNameNS(namespace["w"], "commentRangeStart");
        while (commentRangeStartNodes.length > 0) {
          commentRangeStartNodes[0].parentNode.removeChild(commentRangeStartNodes[0]);
        }

        // get commentReference nodes
        let commentReferenceNodes = currentChildNode.getElementsByTagNameNS(namespace["w"], "commentReference");
        while (commentReferenceNodes.length > 0) {
          commentReferenceNodes[0].parentNode.removeChild(commentReferenceNodes[0]);
        }

        // get commentRangeEnd nodes
        let commentRangeEndNodes = currentChildNode.getElementsByTagNameNS(namespace["w"], "commentRangeEnd");
        while (commentRangeEndNodes.length > 0) {
          commentRangeEndNodes[0].parentNode.removeChild(commentRangeEndNodes[0]);
        }

        xmlText = new XMLSerializer().serializeToString(xmlDoc);
      } catch (err) {
        console.log(err);
      }

      return xmlText;
    }

    async function run() {

      $("#ooxml").val("Working");

      await Word.run(async (context) => {
        Office.context.document.getSelectedDataAsync(Office.CoercionType.Ooxml, async function(result) {
          if (result.status == "succeeded") {
            var ooxml = result.value;

            var updatedOoxml = await removeCommentsFromXML(ooxml);

            var ooxmlFriendly = updatedOoxml.replace(/\>\</gi, ">\n<");
            $("#ooxml").val(ooxmlFriendly);
            // $("#ooxml").val("done");

            console.log(ooxmlFriendly);

            Office.context.document.setSelectedDataAsync(updatedOoxml, { coercionType: Office.CoercionType.Ooxml }, function (result) {
              if (result.status === "succeeded") {
                console.log("Set SelectedDataAsync");
              } else if (result.status == "failed") {
                console.error("Action failed with error: " + result.error.message);
              }
            });        
          }
        });
      });
    }

    /** Default helper for invoking an action and handling errors. */
    async function tryCatch(callback) {
      try {
        await callback();
      } catch (error) {
        // Note: In a production add-in, you'd want to notify the user through your add-in's UI.
        console.error(error);
      }
    }
  language: typescript
template:
  content: "<div>\n\t<button id=\"run\" class=\"ms-Button\">\n    <span class=\"ms-Button-label\">Run</span>  \n  </button>\n</div>\n<textarea id=\"ooxml\" style=\"width: 100%; height: 300px;\"></textarea>"
  language: html
style:
  content: |-
    section.samples {
        margin-top: 20px;
    }

    section.samples .ms-Button, section.setup .ms-Button {
        display: block;
        margin-bottom: 5px;
        margin-left: 20px;
        min-width: 80px;
    }
  language: css
libraries: |
  https://appsforoffice.microsoft.com/lib/1/hosted/office.js
  @types/office-js

  office-ui-fabric-js@1.4.0/dist/css/fabric.min.css
  office-ui-fabric-js@1.4.0/dist/css/fabric.components.min.css

  core-js@2.4.1/client/core.min.js
  @types/core-js

  jquery@3.1.1
  @types/jquery@3.3.1