mdn-browser-compat-data
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Browser compatibility data provided by MDN Web Docs
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{
"javascript": {
"statements": {
"legacy_generator_function": {
"__compat": {
"description": "Legacy generator function",
"mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Statements/Legacy_generator_function",
"support": {
"chrome": {
"version_added": false
},
"chrome_android": {
"version_added": false
},
"edge": {
"version_added": false
},
"edge_mobile": {
"version_added": false
},
"firefox": {
"version_added": "2",
"version_removed": "58"
},
"firefox_android": {
"version_added": "4",
"version_removed": "58"
},
"ie": {
"version_added": false
},
"nodejs": {
"version_added": false
},
"opera": {
"version_added": false
},
"opera_android": {
"version_added": false
},
"safari": {
"version_added": false
},
"safari_ios": {
"version_added": false
},
"samsunginternet_android": {
"version_added": false
},
"webview_android": {
"version_added": false
}
},
"status": {
"experimental": false,
"standard_track": false,
"deprecated": true
}
}
},
"async_function": {
"__compat": {
"description": "<code>async function</code>",
"mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Statements/async_function",
"spec_url": "https://tc39.github.io/ecma262/#sec-async-function-definitions",
"support": {
"chrome": {
"version_added": "55"
},
"chrome_android": {
"version_added": "55"
},
"edge": {
"version_added": true
},
"edge_mobile": {
"version_added": true
},
"firefox": {
"version_added": "52"
},
"firefox_android": {
"version_added": "52"
},
"ie": {
"version_added": false
},
"nodejs": [
{
"version_added": "7.6.0"
},
{
"version_added": "7.0.0",
"flags": [
{
"type": "runtime_flag",
"name": "--harmony"
}
]
}
],
"opera": {
"version_added": "42"
},
"opera_android": {
"version_added": "42"
},
"safari": {
"version_added": "10.1"
},
"safari_ios": {
"version_added": "10.1"
},
"samsunginternet_android": {
"version_added": "6.0"
},
"webview_android": {
"version_added": true
}
},
"status": {
"experimental": false,
"standard_track": true,
"deprecated": false
}
}
},
"block": {
"__compat": {
"mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Statements/block",
"spec_url": "https://tc39.github.io/ecma262/#sec-block",
"support": {
"chrome": {
"version_added": true
},
"chrome_android": {
"version_added": true
},
"edge": {
"version_added": true
},
"edge_mobile": {
"version_added": true
},
"firefox": {
"version_added": "1"
},
"firefox_android": {
"version_added": "4"
},
"ie": {
"version_added": true
},
"nodejs": {
"version_added": true
},
"opera": {
"version_added": true
},
"opera_android": {
"version_added": true
},
"safari": {
"version_added": true
},
"safari_ios": {
"version_added": true
},
"samsunginternet_android": {
"version_added": true
},
"webview_android": {
"version_added": true
}
},
"status": {
"experimental": false,
"standard_track": true,
"deprecated": false
}
}
},
"break": {
"__compat": {
"mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Statements/break",
"spec_url": "https://tc39.github.io/ecma262/#sec-break-statement",
"support": {
"chrome": {
"version_added": true
},
"chrome_android": {
"version_added": true
},
"edge": {
"version_added": true
},
"edge_mobile": {
"version_added": true
},
"firefox": {
"version_added": "1"
},
"firefox_android": {
"version_added": "4"
},
"ie": {
"version_added": true
},
"nodejs": {
"version_added": true
},
"opera": {
"version_added": true
},
"opera_android": {
"version_added": true
},
"safari": {
"version_added": true
},
"safari_ios": {
"version_added": true
},
"samsunginternet_android": {
"version_added": true
},
"webview_android": {
"version_added": true
}
},
"status": {
"experimental": false,
"standard_track": true,
"deprecated": false
}
}
},
"class": {
"__compat": {
"mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Statements/class",
"spec_url": "https://tc39.github.io/ecma262/#sec-class-definitions",
"support": {
"chrome": {
"version_added": "42"
},
"chrome_android": {
"version_added": "42"
},
"edge": {
"version_added": true
},
"edge_mobile": {
"version_added": true
},
"firefox": {
"version_added": "45"
},
"firefox_android": {
"version_added": "45"
},
"ie": {
"version_added": false
},
"nodejs": {
"version_added": "6.0.0"
},
"opera": {
"version_added": "36"
},
"opera_android": {
"version_added": null
},
"safari": {
"version_added": "10.1"
},
"safari_ios": {
"version_added": "10.1"
},
"samsunginternet_android": {
"version_added": "4.0"
},
"webview_android": {
"version_added": "42"
}
},
"status": {
"experimental": false,
"standard_track": true,
"deprecated": false
}
},
"array_subclassing": {
"__compat": {
"description": "Array subclassing",
"support": {
"chrome": {
"version_added": "43"
},
"chrome_android": {
"version_added": "43"
},
"edge": {
"version_added": null
},
"edge_mobile": {
"version_added": null
},
"firefox": {
"version_added": null
},
"firefox_android": {
"version_added": null
},
"ie": {
"version_added": false
},
"nodejs": {
"version_added": null
},
"opera": {
"version_added": "36"
},
"opera_android": {
"version_added": null
},
"safari": {
"version_added": null
},
"safari_ios": {
"version_added": null
},
"samsunginternet_android": {
"version_added": "4.0"
},
"webview_android": {
"version_added": "43"
}
},
"status": {
"experimental": false,
"standard_track": true,
"deprecated": false
}
}
},
"allow_in_sloppy_mode": {
"__compat": {
"description": "Allowed in sloppy mode",
"support": {
"chrome": {
"version_added": "49"
},
"chrome_android": {
"version_added": "49"
},
"edge": {
"version_added": null
},
"edge_mobile": {
"version_added": null
},
"firefox": {
"version_added": null
},
"firefox_android": {
"version_added": null
},
"ie": {
"version_added": false
},
"nodejs": {
"version_added": null
},
"opera": {
"version_added": "36"
},
"opera_android": {
"version_added": null
},
"safari": {
"version_added": null
},
"safari_ios": {
"version_added": null
},
"samsunginternet_android": {
"version_added": "5.0"
},
"webview_android": {
"version_added": "49"
}
},
"status": {
"experimental": false,
"standard_track": true,
"deprecated": false
}
}
}
},
"const": {
"__compat": {
"mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Statements/const",
"spec_url": "https://tc39.github.io/ecma262/#sec-let-and-const-declarations",
"support": {
"chrome": {
"version_added": "21"
},
"chrome_android": {
"version_added": true
},
"edge": {
"version_added": true
},
"edge_mobile": {
"version_added": true
},
"firefox": {
"version_added": "36",
"notes": [
"Prior to Firefox 13, <code>const</code> is implemented, but re-assignment is not failing.",
"Prior to Firefox 46, a <code>TypeError</code> was thrown on redeclaration instead of a <code>SyntaxError</code>."
]
},
"firefox_android": {
"version_added": "36",
"notes": [
"Prior to Firefox 13, <code>const</code> is implemented, but re-assignment is not failing.",
"Prior to Firefox 46, a <code>TypeError</code> was thrown on redeclaration instead of a <code>SyntaxError</code>."
]
},
"ie": {
"version_added": "11"
},
"nodejs": {
"version_added": true
},
"opera": {
"version_added": true
},
"opera_android": {
"version_added": true
},
"safari": {
"version_added": "5.1"
},
"safari_ios": {
"version_added": true
},
"samsunginternet_android": {
"version_added": true
},
"webview_android": {
"version_added": true
}
},
"status": {
"experimental": false,
"standard_track": true,
"deprecated": false
}
}
},
"continue": {
"__compat": {
"mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Statements/continue",
"spec_url": "https://tc39.github.io/ecma262/#sec-continue-statement",
"support": {
"chrome": {
"version_added": true
},
"chrome_android": {
"version_added": true
},
"edge": {
"version_added": true
},
"edge_mobile": {
"version_added": true
},
"firefox": {
"version_added": "1"
},
"firefox_android": {
"version_added": "4"
},
"ie": {
"version_added": true
},
"nodejs": {
"version_added": true
},
"opera": {
"version_added": true
},
"opera_android": {
"version_added": true
},
"safari": {
"version_added": true
},
"safari_ios": {
"version_added": true
},
"samsunginternet_android": {
"version_added": true
},
"webview_android": {
"version_added": true
}
},
"status": {
"experimental": false,
"standard_track": true,
"deprecated": false
}
}
},
"debugger": {
"__compat": {
"mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Statements/debugger",
"spec_url": "https://tc39.github.io/ecma262/#sec-debugger-statement",
"support": {
"chrome": {
"version_added": true
},
"chrome_android": {
"version_added": true
},
"edge": {
"version_added": true
},
"edge_mobile": {
"version_added": true
},
"firefox": {
"version_added": "1"
},
"firefox_android": {
"version_added": "4"
},
"ie": {
"version_added": true
},
"nodejs": {
"version_added": true
},
"opera": {
"version_added": true
},
"opera_android": {
"version_added": true
},
"safari": {
"version_added": true
},
"safari_ios": {
"version_added": true
},
"samsunginternet_android": {
"version_added": true
},
"webview_android": {
"version_added": true
}
},
"status": {
"experimental": false,
"standard_track": true,
"deprecated": false
}
}
},
"default": {
"switch": {
"__compat": {
"description": "<code>default</code> keyword in <code>switch</code>",
"mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Statements/default",
"spec_url": [
"https://tc39.github.io/ecma262/#sec-switch-statement",
"https://tc39.github.io/ecma262/#sec-exports"
],
"support": {
"chrome": {
"version_added": true
},
"chrome_android": {
"version_added": true
},
"edge": {
"version_added": true
},
"edge_mobile": {
"version_added": true
},
"firefox": {
"version_added": "1"
},
"firefox_android": {
"version_added": "4"
},
"ie": {
"version_added": true
},
"nodejs": {
"version_added": true
},
"opera": {
"version_added": true
},
"opera_android": {
"version_added": true
},
"safari": {
"version_added": true
},
"safari_ios": {
"version_added": true
},
"samsunginternet_android": {
"version_added": true
},
"webview_android": {
"version_added": true
}
},
"status": {
"experimental": false,
"standard_track": true,
"deprecated": false
}
}
},
"export": {
"__compat": {
"description": "<code>default</code> keyword with <code>export</code>",
"mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Statements/default",
"spec_url": [
"https://tc39.github.io/ecma262/#sec-switch-statement",
"https://tc39.github.io/ecma262/#sec-exports"
],
"support": {
"chrome": {
"version_added": "61"
},
"chrome_android": {
"version_added": "61"
},
"edge": [
{
"version_added": "16"
},
{
"version_added": "15",
"flags": [
{
"name": "Experimental JavaScript Features",
"type": "preference"
}
]
}
],
"edge_mobile": {
"version_added": true
},
"firefox": [
{
"version_added": "60"
},
{
"version_added": "54",
"version_removed": "60",
"flags": [
{
"name": "dom.moduleScripts.enabled",
"type": "preference"
}
]
}
],
"firefox_android": [
{
"version_added": "60"
},
{
"version_added": "54",
"version_removed": "60",
"flags": [
{
"name": "dom.moduleScripts.enabled",
"type": "preference"
}
]
}
],
"ie": {
"version_added": false
},
"nodejs": {
"version_added": null
},
"opera": {
"version_added": "47"
},
"opera_android": {
"version_added": "47"
},
"safari": {
"version_added": "10.1"
},
"safari_ios": {
"version_added": "10.1"
},
"samsunginternet_android": {
"version_added": false
},
"webview_android": {
"version_added": false
}
},
"status": {
"experimental": false,
"standard_track": true,
"deprecated": false
}
}
}
},
"do_while": {
"__compat": {
"description": "<code>do...while</code>",
"mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Statements/do...while",
"spec_url": "https://tc39.github.io/ecma262/#sec-do-while-statement",
"support": {
"chrome": {
"version_added": true
},
"chrome_android": {
"version_added": true
},
"edge": {
"version_added": true
},
"edge_mobile": {
"version_added": true
},
"firefox": {
"version_added": "1"
},
"firefox_android": {
"version_added": "4"
},
"ie": {
"version_added": "6"
},
"nodejs": {
"version_added": true
},
"opera": {
"version_added": true
},
"opera_android": {
"version_added": true
},
"safari": {
"version_added": true
},
"safari_ios": {
"version_added": true
},
"samsunginternet_android": {
"version_added": true
},
"webview_android": {
"version_added": true
}
},
"status": {
"experimental": false,
"standard_track": true,
"deprecated": false
}
}
},
"empty": {
"__compat": {
"description": "Empty statement (<code>;</code>)",
"mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Statements/Empty",
"spec_url": "https://tc39.github.io/ecma262/#sec-empty-statement",
"support": {
"chrome": {
"version_added": true
},
"chrome_android": {
"version_added": true
},
"edge": {
"version_added": true
},
"edge_mobile": {
"version_added": true
},
"firefox": {
"version_added": "1"
},
"firefox_android": {
"version_added": "4"
},
"ie": {
"version_added": true
},
"nodejs": {
"version_added": true
},
"opera": {
"version_added": true
},
"opera_android": {
"version_added": true
},
"safari": {
"version_added": true
},
"safari_ios": {
"version_added": true
},
"samsunginternet_android": {
"version_added": true
},
"webview_android": {
"version_added": true
}
},
"status": {
"experimental": false,
"standard_track": true,
"deprecated": false
}
}
},
"export": {
"__compat": {
"mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Statements/export",
"spec_url": "https://tc39.github.io/ecma262/#sec-exports",
"support": {
"chrome": {
"version_added": "61"
},
"chrome_android": {
"version_added": "61"
},
"edge": [
{
"version_added": "16"
},
{
"version_added": "15",
"flags": [
{
"name": "Experimental JavaScript Features",
"type": "preference"
}
]
}
],
"edge_mobile": {
"version_added": true
},
"firefox": [
{
"version_added": "60"
},
{
"version_added": "54",
"version_removed": "60",
"flags": [
{
"name": "dom.moduleScripts.enabled",
"type": "preference"
}
]
}
],
"firefox_android": [
{
"version_added": "60"
},
{
"version_added": "54",
"version_removed": "60",
"flags": [
{
"name": "dom.moduleScripts.enabled",
"type": "preference"
}
]
}
],
"ie": {
"version_added": false
},
"nodejs": {
"version_added": null
},
"opera": {
"version_added": "47"
},
"opera_android": {
"version_added": "47"
},
"safari": {
"version_added": "10.1"
},
"safari_ios": {
"version_added": "10.1"
},
"samsunginternet_android": {
"version_added": false
},
"webview_android": {
"version_added": false
}
},
"status": {
"experimental": false,
"standard_track": true,
"deprecated": false
}
}
},
"for": {
"__compat": {
"mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Statements/for",
"spec_url": "https://tc39.github.io/ecma262/#sec-for-statement",
"support": {
"chrome": {
"version_added": true
},
"chrome_android": {
"version_added": true
},
"edge": {
"version_added": true
},
"edge_mobile": {
"version_added": true
},
"firefox": {
"version_added": "1"
},
"firefox_android": {
"version_added": "4"
},
"ie": {
"version_added": true
},
"nodejs": {
"version_added": true
},
"opera": {
"version_added": true
},
"opera_android": {
"version_added": true
},
"safari": {
"version_added": true
},
"safari_ios": {
"version_added": true
},
"samsunginternet_android": {
"version_added": true
},
"webview_android": {
"version_added": true
}
},
"status": {
"experimental": false,
"standard_track": true,
"deprecated": false
}
}
},
"for_await_of": {
"__compat": {
"description": "<code>for await...of</code>",
"mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Statements/for-await...of",
"spec_url": "https://tc39.github.io/ecma262/#sec-for-in-and-for-of-statements",
"support": {
"chrome": {
"version_added": "63"
},
"chrome_android": {
"version_added": "63"
},
"edge": {
"version_added": false
},
"edge_mobile": {
"version_added": false
},
"firefox": {
"version_added": "57"
},
"firefox_android": {
"version_added": null
},
"ie": {
"version_added": false
},
"nodejs": {
"version_added": null
},
"opera": {
"version_added": "50"
},
"opera_android": {
"version_added": "50"
},
"safari": {
"version_added": "11"
},
"safari_ios": {
"version_added": null
},
"samsunginternet_android": {
"version_added": null
},
"webview_android": {
"version_added": "63"
}
},
"status": {
"experimental": true,
"standard_track": true,
"deprecated": false
}
}
},
"for_each_in": {
"__compat": {
"description": "<code>for each...in</code>",
"mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Statements/for_each...in",
"support": {
"chrome": {
"version_added": false
},
"chrome_android": {
"version_added": false
},
"edge": {
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},
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},
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},
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"version_removed": "57"
},
"ie": {
"version_added": false
},
"nodejs": {
"version_added": false
},
"opera": {
"version_added": false
},
"opera_android": {
"version_added": false
},
"safari": {
"version_added": false
},
"safari_ios": {
"version_added": false
},
"samsunginternet_android": {
"version_added": false
},
"webview_android": {
"version_added": false
}
},
"status": {
"experimental": false,
"standard_track": false,
"deprecated": true
}
}
},
"for_in": {
"__compat": {
"description": "<code>for...in</code>",
"mdn_url": "https://developer.mozilla.org/docs/Web/JavaScript/Reference/Statements/for...in",
"spec_url": "https://tc39.github.io/ecma262/#sec-for-in-and-for-of-statements",
"support": {
"chrome": {
"version_added": true
},
"chrome_android": {
"version_added": true
},
"edge": {
"version_added": true
},
"edge_mobile": {
"version_added": true
},
"firefox": {
"version_added": "1"
},
"firefox_android": {
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},
"ie": {
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},
"nodejs": {
"version_added": true
},
"opera": {
"version_added": true
},
"opera_android": {
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