{
  "javascript": {
    "builtins": {
      "BigInt": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/BigInt",
          "spec_url": "https://tc39.es/ecma262/#sec-bigint-objects",
          "support": {
            "chrome": {
              "version_added": "67"
            },
            "chrome_android": {
              "version_added": "67"
            },
            "edge": {
              "version_added": "79"
            },
            "firefox": {
              "version_added": "68"
            },
            "firefox_android": {
              "version_added": "68"
            },
            "ie": {
              "version_added": false
            },
            "nodejs": {
              "version_added": "10.4.0"
            },
            "opera": {
              "version_added": "54"
            },
            "opera_android": {
              "version_added": "48"
            },
            "safari": {
              "version_added": "14"
            },
            "safari_ios": {
              "version_added": "14"
            },
            "samsunginternet_android": {
              "version_added": "9.0"
            },
            "webview_android": {
              "version_added": "67"
            }
          },
          "status": {
            "experimental": false,
            "standard_track": true,
            "deprecated": false
          }
        },
        "BigInt": {
          "__compat": {
            "description": "<code>BigInt()</code> constructor",
            "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/BigInt/BigInt",
            "spec_url": "https://tc39.es/ecma262/#sec-bigint-constructor",
            "support": {
              "chrome": {
                "version_added": "67"
              },
              "chrome_android": {
                "version_added": "67"
              },
              "edge": {
                "version_added": "79"
              },
              "firefox": {
                "version_added": "68"
              },
              "firefox_android": {
                "version_added": "68"
              },
              "ie": {
                "version_added": false
              },
              "nodejs": {
                "version_added": "10.4.0"
              },
              "opera": {
                "version_added": "54"
              },
              "opera_android": {
                "version_added": "48"
              },
              "safari": {
                "version_added": "14"
              },
              "safari_ios": {
                "version_added": "14"
              },
              "samsunginternet_android": {
                "version_added": "9.0"
              },
              "webview_android": {
                "version_added": "67"
              }
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "asIntN": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/BigInt/asIntN",
            "spec_url": "https://tc39.es/ecma262/#sec-bigint.asintn",
            "support": {
              "chrome": {
                "version_added": "67"
              },
              "chrome_android": {
                "version_added": "67"
              },
              "edge": {
                "version_added": "79"
              },
              "firefox": {
                "version_added": "68"
              },
              "firefox_android": {
                "version_added": "68"
              },
              "ie": {
                "version_added": false
              },
              "nodejs": {
                "version_added": "10.4.0"
              },
              "opera": {
                "version_added": "54"
              },
              "opera_android": {
                "version_added": "48"
              },
              "safari": {
                "version_added": "14"
              },
              "safari_ios": {
                "version_added": "14"
              },
              "samsunginternet_android": {
                "version_added": "9.0"
              },
              "webview_android": {
                "version_added": "67"
              }
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "asUintN": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/BigInt/asUintN",
            "spec_url": "https://tc39.es/ecma262/#sec-bigint.asuintn",
            "support": {
              "chrome": {
                "version_added": "67"
              },
              "chrome_android": {
                "version_added": "67"
              },
              "edge": {
                "version_added": "79"
              },
              "firefox": {
                "version_added": "68"
              },
              "firefox_android": {
                "version_added": "68"
              },
              "ie": {
                "version_added": false
              },
              "nodejs": {
                "version_added": "10.4.0"
              },
              "opera": {
                "version_added": "54"
              },
              "opera_android": {
                "version_added": "48"
              },
              "safari": {
                "version_added": "14"
              },
              "safari_ios": {
                "version_added": "14"
              },
              "samsunginternet_android": {
                "version_added": "9.0"
              },
              "webview_android": {
                "version_added": "67"
              }
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "toLocaleString": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/BigInt/toLocaleString",
            "spec_url": "https://tc39.es/ecma402/#sup-bigint.prototype.tolocalestring",
            "support": {
              "chrome": {
                "version_added": "67"
              },
              "chrome_android": {
                "version_added": "67"
              },
              "edge": {
                "version_added": "79"
              },
              "firefox": {
                "version_added": "68"
              },
              "firefox_android": {
                "version_added": "68"
              },
              "ie": {
                "version_added": false
              },
              "nodejs": {
                "version_added": "10.4.0"
              },
              "opera": {
                "version_added": "54"
              },
              "opera_android": {
                "version_added": "48"
              },
              "safari": {
                "version_added": "14"
              },
              "safari_ios": {
                "version_added": "14"
              },
              "samsunginternet_android": {
                "version_added": "9.0"
              },
              "webview_android": {
                "version_added": "67"
              }
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          },
          "locales": {
            "__compat": {
              "support": {
                "chrome": {
                  "version_added": "76"
                },
                "chrome_android": {
                  "version_added": "76"
                },
                "edge": {
                  "version_added": "79"
                },
                "firefox": {
                  "version_added": "70"
                },
                "firefox_android": {
                  "version_added": false
                },
                "ie": {
                  "version_added": false
                },
                "nodejs": {
                  "version_added": false
                },
                "opera": {
                  "version_added": false
                },
                "opera_android": {
                  "version_added": "54"
                },
                "safari": {
                  "version_added": "14"
                },
                "safari_ios": {
                  "version_added": "14"
                },
                "samsunginternet_android": {
                  "version_added": false
                },
                "webview_android": {
                  "version_added": "76"
                }
              },
              "status": {
                "experimental": false,
                "standard_track": true,
                "deprecated": false
              }
            }
          },
          "options": {
            "__compat": {
              "support": {
                "chrome": {
                  "version_added": "76"
                },
                "chrome_android": {
                  "version_added": "76"
                },
                "edge": {
                  "version_added": "79"
                },
                "firefox": {
                  "version_added": "70"
                },
                "firefox_android": {
                  "version_added": false
                },
                "ie": {
                  "version_added": false
                },
                "nodejs": {
                  "version_added": false
                },
                "opera": {
                  "version_added": false
                },
                "opera_android": {
                  "version_added": "54"
                },
                "safari": {
                  "version_added": "14"
                },
                "safari_ios": {
                  "version_added": "14"
                },
                "samsunginternet_android": {
                  "version_added": false
                },
                "webview_android": {
                  "version_added": "76"
                }
              },
              "status": {
                "experimental": false,
                "standard_track": true,
                "deprecated": false
              }
            }
          }
        },
        "toString": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/BigInt/toString",
            "spec_url": "https://tc39.es/ecma262/#sec-bigint.prototype.tostring",
            "support": {
              "chrome": {
                "version_added": "67"
              },
              "chrome_android": {
                "version_added": "67"
              },
              "edge": {
                "version_added": "79"
              },
              "firefox": {
                "version_added": "68"
              },
              "firefox_android": {
                "version_added": "68"
              },
              "ie": {
                "version_added": false
              },
              "nodejs": {
                "version_added": "10.4.0"
              },
              "opera": {
                "version_added": "54"
              },
              "opera_android": {
                "version_added": "48"
              },
              "safari": {
                "version_added": "14"
              },
              "safari_ios": {
                "version_added": "14"
              },
              "samsunginternet_android": {
                "version_added": "9.0"
              },
              "webview_android": {
                "version_added": "67"
              }
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        },
        "valueOf": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/BigInt/valueOf",
            "spec_url": "https://tc39.es/ecma262/#sec-bigint.prototype.valueof",
            "support": {
              "chrome": {
                "version_added": "67"
              },
              "chrome_android": {
                "version_added": "67"
              },
              "edge": {
                "version_added": "79"
              },
              "firefox": {
                "version_added": "68"
              },
              "firefox_android": {
                "version_added": "68"
              },
              "ie": {
                "version_added": false
              },
              "nodejs": {
                "version_added": "10.4.0"
              },
              "opera": {
                "version_added": "54"
              },
              "opera_android": {
                "version_added": "48"
              },
              "safari": {
                "version_added": "14"
              },
              "safari_ios": {
                "version_added": "14"
              },
              "samsunginternet_android": {
                "version_added": "9.0"
              },
              "webview_android": {
                "version_added": "67"
              }
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
            }
          }
        }
      }
    }
  }
}