Ensure string escape sequences are preserved (#24)

Author: MichaelDoyle

projects/demo/src/app/app.component.html

@@ -38,6 +38,7 @@ <h3>Simple Types</h3>
 <div class="json-container">
   <ngx-json-treeview [json]="13" />
   <ngx-json-treeview [json]="'hello, world!'" />
+  <ngx-json-treeview [json]="'hello, world!\nanother line!'" />
   <ngx-json-treeview [json]="true" />
   <ngx-json-treeview [json]="null" />
   <ngx-json-treeview [json]="{}" />

projects/demo/src/app/app.component.ts

@@ -12,6 +12,7 @@ export class AppComponent {
 
   baseObj = {
     string: 'Hello World',
+    stringPre: 'Hello\nWorld\n\tAnother line',
     number: 1234567890,
     boolean: true,
     url: 'http://www.google.com',
@@ -51,6 +52,11 @@ export class AppComponent {
   }
 
   stringify(obj: any) {
-    return typeof obj === 'function' ? '' + obj : JSON.stringify(obj, null, 2);
+    if (typeof obj === 'function') {
+      return '' + obj;
+    } else if (typeof obj === 'string') {
+      return obj;
+    }
+    return JSON.stringify(obj, null, 2);
   }
 }

projects/ngx-json-treeview/src/lib/ngx-json-treeview.component.ts

@@ -245,7 +245,7 @@ export class NgxJsonTreeviewComponent {
         break;
       case 'string':
         segment.type = 'string';
-        segment.description = '"' + segment.value + '"';
+        segment.description = JSON.stringify(segment.value);
         break;
       case 'undefined':
         segment.type = 'undefined';