{
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          "__compat": {
            "description": "<code>Set()</code> constructor",
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                "version_added": "38"
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                  "version_added": "38"
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                  "version_added": "14"
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                  "version_added": false
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                  "version_added": "25"
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                "safari_ios": {
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                "experimental": false,
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          },
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            "__compat": {
              "description": "<code>Set()</code> without <code>new</code> throws",
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                  "version_added": "38"
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                "chrome_android": {
                  "version_added": "38"
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                "edge": {
                  "version_added": "12"
                },
                "firefox": {
                  "version_added": "42"
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                "firefox_android": {
                  "version_added": "42"
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                "ie": {
                  "version_added": "11"
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                  "version_added": "0.12"
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                  "version_added": "25"
                },
                "opera_android": {
                  "version_added": "25"
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                "safari": {
                  "version_added": "9"
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                "safari_ios": {
                  "version_added": "9"
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                "experimental": false,
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              "description": "<code>new Set(null)</code>",
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                  "version_added": "38"
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                  "version_added": "38"
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                  "version_added": "12"
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                  "version_added": "37"
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                  {
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                ],
                "opera": {
                  "version_added": "25"
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                "opera_android": {
                  "version_added": "25"
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                  "version_added": "9"
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                "safari_ios": {
                  "version_added": "9"
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                "version_added": "38"
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                "version_added": "12"
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                "version_added": "25"
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                "version_added": "25"
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                "version_added": "8"
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              "safari_ios": {
                "version_added": "8"
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              "experimental": false,
              "standard_track": true,
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          "__compat": {
            "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Set/clear",
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                "version_added": "38"
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                "version_added": "12"
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                "version_added": "19"
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                "version_added": "19"
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                "version_added": "25"
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              "safari_ios": {
                "version_added": "8"
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            },
            "status": {
              "experimental": false,
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        },
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                "version_added": "38"
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            "status": {
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            "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Set/entries",
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              },
              "chrome_android": {
                "version_added": "38"
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                "version_added": "12"
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                "version_added": "24"
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                "version_added": "24"
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                "version_added": false
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                "version_added": "25"
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                "version_added": "38"
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                "version_added": "12"
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                "version_added": "25"
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                "version_added": "25"
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              "opera_android": {
                "version_added": "25"
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                "version_added": "25"
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            "description": "Key equality for -0 and 0",
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                "version_added": "9"
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            },
            "status": {
              "experimental": false,
              "standard_track": true,
              "deprecated": false
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        },
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            "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Set/size",
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                "version_added": "38"
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                "version_added": "12"
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              "standard_track": true,
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            "status": {
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            "mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Set/@@iterator",
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                {
                  "alternative_name": "iterator",
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                {
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                {
                  "alternative_name": "iterator",
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              ],
              "ie": {
                "version_added": false
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        "@@species": {
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                "version_added": "10"
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}