{
  "javascript": {
    "builtins": {
      "BigUint64Array": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/BigUint64Array",
          "spec_url": "https://tc39.es/ecma262/multipage/indexed-collections.html#sec-typedarray-objects",
          "tags": [
            "web-features:snapshot:ecmascript-2020",
            "web-features:bigint64array"
          ],
          "support": {
            "chrome": {
              "version_added": "67"
            },
            "chrome_android": "mirror",
            "deno": {
              "version_added": "1.0"
            },
            "edge": "mirror",
            "firefox": {
              "version_added": "68"
            },
            "firefox_android": "mirror",
            "ie": {
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            },
            "nodejs": {
              "version_added": "10.4.0"
            },
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "safari": {
              "version_added": "15"
            },
            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
            "webview_android": "mirror",
            "webview_ios": "mirror"
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        },
        "BigUint64Array": {
          "__compat": {
            "description": "`BigUint64Array()` constructor",
            "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/BigUint64Array/BigUint64Array",
            "spec_url": "https://tc39.es/ecma262/multipage/indexed-collections.html#sec-typedarray-constructors",
            "tags": [
              "web-features:snapshot:ecmascript-2020",
              "web-features:bigint64array"
            ],
            "support": {
              "chrome": {
                "version_added": "67"
              },
              "chrome_android": "mirror",
              "deno": {
                "version_added": "1.0"
              },
              "edge": "mirror",
              "firefox": {
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              },
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              },
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              "opera": "mirror",
              "opera_android": "mirror",
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              },
              "safari_ios": "mirror",
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        }
      }
    }
  }
}