{
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          "tags": [
            "web-features:snapshot:ecmascript-1",
            "web-features:functions"
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            "chrome": {
              "version_added": "1"
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            "chrome_android": "mirror",
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              "version_added": "1"
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              "version_added": "4"
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              "version_added": "3"
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              "version_added": "10.1"
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            "safari": {
              "version_added": "1"
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            "safari_ios": "mirror",
            "samsunginternet_android": "mirror",
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            "webview_ios": "mirror"
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          "status": {
            "experimental": false,
            "standard_track": true,
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        },
        "Function": {
          "__compat": {
            "description": "`Function()` constructor",
            "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Function/Function",
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            "tags": [
              "web-features:snapshot:ecmascript-1",
              "web-features:functions"
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                "version_added": "1"
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              "safari": {
                "version_added": "1"
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              "safari_ios": "mirror",
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              "webview_ios": "mirror"
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            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
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          }
        },
        "apply": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Function/apply",
            "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-function.prototype.apply",
            "tags": [
              "web-features:snapshot:ecmascript-3",
              "web-features:functions"
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            "support": {
              "chrome": {
                "version_added": "1"
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              "chrome_android": "mirror",
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                "version_added": "1.0"
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              "firefox": {
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              "oculus": "mirror",
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                "version_added": "4"
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                "version_added": "10.1"
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              "safari": {
                "version_added": "1"
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              "safari_ios": "mirror",
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              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
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          },
          "generic_arrays_as_arguments": {
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              "description": "ES 5.1: generic array-like object as `arguments`",
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                "web-features:snapshot:ecmascript-5",
                "web-features:functions"
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              "support": {
                "chrome": {
                  "version_added": "17"
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                "chrome_android": "mirror",
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                  "version_added": "1.0"
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                "firefox": {
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                  "version_added": "9"
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                "opera_android": {
                  "version_added": "10.1"
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                "safari": {
                  "version_added": "6"
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                "safari_ios": "mirror",
                "samsunginternet_android": "mirror",
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                  "version_added": "≤37"
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                "webview_ios": "mirror"
              },
              "status": {
                "experimental": false,
                "standard_track": true,
                "deprecated": false
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            }
          }
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        "arguments": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Function/arguments",
            "tags": [
              "web-features:functions-caller-arguments"
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            "support": {
              "chrome": {
                "version_added": "1"
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              "chrome_android": "mirror",
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                "version_added": "1.0"
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              "firefox": {
                "version_added": "1"
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              "firefox_android": "mirror",
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                "version_added": "4"
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              "nodejs": {
                "version_added": "0.10.0"
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              "oculus": "mirror",
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                "version_added": "3"
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              "opera_android": {
                "version_added": "10.1"
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              "safari": {
                "version_added": "1"
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              "safari_ios": "mirror",
              "samsunginternet_android": "mirror",
              "webview_android": "mirror",
              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": false,
              "deprecated": true
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          }
        },
        "bind": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Function/bind",
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            "tags": [
              "web-features:snapshot:ecmascript-5",
              "web-features:functions"
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            "support": {
              "chrome": {
                "version_added": "7"
              },
              "chrome_android": "mirror",
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                "version_added": "1.0"
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              "firefox": {
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                "version_added": "9"
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              "safari_ios": {
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                "version_added": "4"
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              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
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          }
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        "call": {
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            "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Function/call",
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            "tags": [
              "web-features:snapshot:ecmascript-3",
              "web-features:functions"
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            "support": {
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              "chrome_android": "mirror",
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              },
              "oculus": "mirror",
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                "version_added": "4"
              },
              "opera_android": {
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            "status": {
              "experimental": false,
              "standard_track": true,
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            "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Function/caller",
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            "status": {
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        "displayName": {
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                "version_added": false
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            "status": {
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              "standard_track": false,
              "deprecated": false
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        "length": {
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            "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Function/length",
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            "tags": [
              "web-features:snapshot:ecmascript-1",
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            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
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          },
          "configurable_true": {
            "__compat": {
              "description": "Configurable: true",
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                "web-features:snapshot:ecmascript-2015",
                "web-features:functions"
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              },
              "status": {
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                "standard_track": true,
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            }
          }
        },
        "name": {
          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Function/name",
            "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-function-instances-name",
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            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
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          },
          "configurable_true": {
            "__compat": {
              "description": "Configurable: true",
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                "web-features:snapshot:ecmascript-2015",
                "web-features:functions"
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                "oculus": "mirror",
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                "samsunginternet_android": "mirror",
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              },
              "status": {
                "experimental": false,
                "standard_track": true,
                "deprecated": false
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          "inferred_names": {
            "__compat": {
              "description": "Inferred names on anonymous functions",
              "tags": [
                "web-features:snapshot:ecmascript-2015",
                "web-features:functions"
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                "chrome_android": "mirror",
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                "edge": [
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                    "version_added": "14",
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                    "partial_implementation": true,
                    "notes": "Names for functions defined in a dictionary are properly assigned; however, anonymous functions defined on a var/let variable assignment have blank names."
                  }
                ],
                "firefox": {
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                "firefox_android": "mirror",
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              },
              "status": {
                "experimental": false,
                "standard_track": true,
                "deprecated": false
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          }
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        "toString": {
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            "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Function/toString",
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              "web-features:snapshot:ecmascript-1",
              "web-features:functions"
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            "support": {
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              "chrome_android": "mirror",
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              "oculus": "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
            }
          },
          "toString_revision": {
            "__compat": {
              "description": "Implements `Function.prototype.toString` revision",
              "tags": [
                "web-features:snapshot:ecmascript-2019",
                "web-features:functions"
              ],
              "support": {
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                "chrome_android": "mirror",
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                "firefox_android": "mirror",
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                  "version_added": false
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                "nodejs": {
                  "version_added": false
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                "oculus": "mirror",
                "opera": "mirror",
                "opera_android": "mirror",
                "safari": {
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                "safari_ios": "mirror",
                "samsunginternet_android": "mirror",
                "webview_android": "mirror",
                "webview_ios": "mirror"
              },
              "status": {
                "experimental": false,
                "standard_track": true,
                "deprecated": false
              }
            }
          }
        },
        "@@hasInstance": {
          "__compat": {
            "description": "[Symbol.hasInstance]",
            "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Function/Symbol.hasInstance",
            "spec_url": "https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-function.prototype-%symbol.hasinstance%",
            "tags": [
              "web-features:snapshot:ecmascript-2015",
              "web-features:functions"
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            "support": {
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                "version_added": "50"
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              "chrome_android": "mirror",
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              "oculus": "mirror",
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              "safari_ios": "mirror",
              "samsunginternet_android": "mirror",
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              "webview_ios": "mirror"
            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
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          }
        }
      }
    }
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}