{
  "javascript": {
    "operators": {
      "logical_nullish_assignment": {
        "__compat": {
          "description": "Logical nullish assignment (<code>x ??= y</code>)",
          "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Operators/Logical_nullish_assignment",
          "spec_url": "https://tc39.es/proposal-logical-assignment/#sec-assignment-operators",
          "support": {
            "chrome": {
              "version_added": "85"
            },
            "chrome_android": {
              "version_added": "85"
            },
            "edge": {
              "version_added": "85"
            },
            "firefox": {
              "version_added": "79"
            },
            "firefox_android": {
              "version_added": false
            },
            "ie": {
              "version_added": false
            },
            "nodejs": {
              "version_added": false
            },
            "opera": {
              "version_added": false
            },
            "opera_android": {
              "version_added": false
            },
            "safari": {
              "version_added": "14"
            },
            "safari_ios": {
              "version_added": "14"
            },
            "samsunginternet_android": {
              "version_added": false
            },
            "webview_android": {
              "version_added": "85"
            }
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        }
      }
    }
  }
}