判断是不是字符串的bug

one_stop_public/utils/myutils.js

-
 import {
   EditorState, convertFromRaw, convertToRaw, CompositeDecorator,
 } from 'draft-js';
-import { message } from 'antd'
-import { stateToHTML } from 'draft-js-export-html';
+import {message} from 'antd'
+import {stateToHTML} from 'draft-js-export-html';
 import moment from 'moment';
+import {isJSON} from "@/webPublic/one_stop_public/copy";
 
 function findLinkEntities(contentBlock, callback, contentState) {
   contentBlock.findEntityRanges(
@@ -19,13 +19,12 @@ function findLinkEntities(contentBlock, callback, contentState) {
       console.log(arguments);
       callback(...arguments);
     }
-
   );
 }
 
 const Link = (props) => {
 
-  const { url } = props.contentState.getEntity(props.entityKey).getData();
+  const {url} = props.contentState.getEntity(props.entityKey).getData();
 
   return (
     <a href={url} target="_blank">
@@ -40,29 +39,30 @@ const decorator = new CompositeDecorator([
     component: Link
   }
 ]);
+
 export function changeHtml(msg) {
   var msg = msg.replace(/<\/?[^>]*>/g, ''); //去除HTML Tag
   msg = msg.replace(/[|]*\n/, '') //去除行尾空格
   msg = msg.replace(/&npsp;/ig, ''); //去掉npsp
   return msg;
 }
-export function changeToDraftState(blocks) {
 
+export function changeToDraftState(blocks) {
   if (blocks == null || blocks == "") {
     return EditorState.createEmpty(decorator)
   }
   let x;
-  if(blocks instanceof String){
-    try{
+  if (typeof blocks === 'string' && blocks) {
+    try {
       x = JSON.parse(blocks)
-   }catch(e){
-     return EditorState.createEmpty(decorator)
-   }
-  }else{
-    x=blocks
+    } catch (e) {
+      return EditorState.createEmpty(decorator)
+    }
+  } else {
+    x = blocks
   }
-  
-  if(!x.blocks){
+
+  if (!x.blocks) {
     return EditorState.createEmpty(decorator)
 
   }
@@ -71,32 +71,36 @@ export function changeToDraftState(blocks) {
   const b = convertFromRaw(x);
   return EditorState.createWithContent(b, decorator)
 }
+
 export function changeFromDraftState(editorState) {
   const x = editorState.getCurrentContent()
   const blocks = JSON.stringify(convertToRaw(x))
   const content = stateToHTML(x)
 
-  return { content, blocks }
+  return {content, blocks}
 }
+
 export function changeToDraftState2(blocks) {
 
 
   const b = convertFromRaw(blocks);
   return EditorState.createWithContent(b, decorator)
 }
+
 export function changeFromDraftState2(editorState) {
-  if(editorState==null) return;
+  if (editorState == null) return;
   const x = editorState.getCurrentContent()
   const blocks = convertToRaw(x)
 
   return blocks
 }
+
 export function preHandle(values) {
 
   for (var key in values) {
 
-    if(!values[key]) continue;
-   if (key.indexOf("$") > -1) {
+    if (!values[key]) continue;
+    if (key.indexOf("$") > -1) {
       var xx = key.split("$")
       for (var i = 0; i < xx.length; i++) {
 
@@ -107,27 +111,27 @@ export function preHandle(values) {
         }
       }
       delete values[key]
-    }  else {
+    } else {
 
       if (values[key] != null) {
         if (values[key] instanceof moment) {
           values[key] = values[key].valueOf()
-        }else if (values[key] instanceof Date) {
+        } else if (values[key] instanceof Date) {
           values[key] = values[key].valueOf()
         } else if (values[key] instanceof Boolean) {
           values[key] = values[key] ? 0 : 1
-        }else if(values[key] instanceof Object&&key!='defaultValues'){
+        } else if (values[key] instanceof Object && key != 'defaultValues') {
 
           //处理子表单中的日期值
           let objValues = values[key];
-          for(let k in objValues){
-            if(k!=''&&objValues[k] instanceof Object){
+          for (let k in objValues) {
+            if (k != '' && objValues[k] instanceof Object) {
               let childObj = objValues[k];
-              for(let j in childObj){
-                if(childObj[j]!=null){
+              for (let j in childObj) {
+                if (childObj[j] != null) {
                   if (childObj[j] instanceof moment) {
                     values[key][k][j] = values[key][k][j].valueOf()
-                  }else if (childObj[j] instanceof Date) {
+                  } else if (childObj[j] instanceof Date) {
                     values[key][k][j] = values[key][k][j].valueOf()
                   } else if (childObj[j] instanceof Boolean) {
                     values[key][k][j] = values[key][k][j] ? 0 : 1