fix attributes render

.editorconfig

-# Editor configuration, see http://editorconfig.org
+# Editor configuration, see https://editorconfig.org
 root = true
 
 [*]
 charset = utf-8
 indent_style = space
-indent_size = 2
+indent_size = 4
 insert_final_newline = true
 trim_trailing_whitespace = true
 
 [*.md]
 max_line_length = off
 trim_trailing_whitespace = false
+
+[*.json]
+indent_size = 2

CHANGELOG.md

 # Changelog of json2html-lib
 
+## V0.0.2 (2020-10-14)
+
+- Fix attributs render
+
 ## V0.0.1 (2020-10-14)
 
 - initial release

projects/json2html/package.json

 {
   "name": "json2html-lib",
-  "version": "0.0.1",
+  "version": "0.0.2",
   "license": "MIT",
   "repository": {
     "type": "git",

projects/json2html/src/lib/json2html.ts

@@ -79,30 +79,32 @@ export class Json2html {
     private _generateAttrs(lvl: number, json: Json2htmlRef) {
         let string = '';
         const attrs = json.attrs;
-        if (json.attrs && Object.keys(json.attrs).length) {
-            for (const id in json.attrs) {
-                if (json.attrs[id] !== undefined) {
+        if (attrs && Object.keys(attrs).length) {
+            for (const id in attrs) {
+                if (attrs[id] !== undefined) {
+                    let attr = '';
                     switch (this.options.attrPosition) {
                         case 'inline':
-                            string += ' ';
+                            attr += ' ';
                             break;
                         case 'space':
-                            string += string && this.options.indent && this._hasMultiline()
+                            attr += string && this.options.indent && this._hasMultiline()
                                 ? `\n${this._getSpacing(lvl + 1)}`
                                 : string += ' ';
                             break;
                         case 'alignTag':
-                            string += string += string && this.options.indent && this._hasMultiline()
+                            attr += string && this.options.indent && this._hasMultiline()
                                 ? `\n${this._getSpacing(lvl, 1)}`
                                 : ' ';
                             break;
                         case 'alignFirstAttr':
-                            string += string += string && this.options.indent && this._hasMultiline()
-                                ? `\n${this._getSpacing(lvl, this.json.tag.length + 2)}`
+                            attr += string && this.options.indent && this._hasMultiline()
+                                ? `\n${this._getSpacing(lvl, json.tag.length + 2)}`
                                 : ' ';
                             break;
                     }
-                    string += `${id}${json.attrs[id] !== null || json.attrs[id] ? `="${json.attrs[id]}"` : ''}`;
+                    attr += `${id}${attrs[id] !== null || attrs[id] ? `="${attrs[id]}"` : ''}`;
+                    string += attr;
                 }
             }
         }