JSFiddle - React, Tailwind, and code Playground

HTML

<pre></pre>

JavaScript

var vmgetAllPermissions = {
  "Admin": {
    "category": "admin",
    "permission": "admin"
  },
  "user": {
    "category": "user",
    "permission": "user"
  }
}

var permissionArray =[];
Object.keys(vmgetAllPermissions).map(function(category, key) {

for(var key in vmgetAllPermissions) {
    if(vmgetAllPermissions.hasOwnProperty(key)) {
        permissionArray.push({category,key});

    }
}

});

document.getElementsByTagName("pre")[0].innerHTML =(JSON.stringify(permissionArray));