Kangax 的 ES7 兼容性表格

https://kangax.github.io/compat-table/es2016plus/

 

Sort by             Engine types             Features             Flagged features           Show obsolete platforms  Show unstable platforms 

V8 SpiderMonkey JavaScriptCore Chakra Other 

⬤ Minor difference (1 point) ⬤ Small feature (2 points) ⬤ Medium feature (4 points) ⬤ Large feature (8 points)

			Compilers/polyfills					Desktop browsers																	Servers/runtimes					Mobile
Feature name	Current browser
2016 features
	2/3	3/3	3/3	2/3	0/3	0/3	3/3	3/3	3/3	3/3	3/3	3/3	3/3	3/3	3/3	0/3	3/3	3/3	2/3	3/3	3/3	3/3	3/3
	0/3	3/3	2/3	3/3	2/3	0/3	3/3	3/3	3/3	3/3	3/3	3/3	3/3	3/3	3/3	3/3	3/3	3/3	0/3	3/3	3/3	3/3	3/3
2016 misc
	Yes		No	No	No	No	No	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes	Yes	Yes
	Yes		No	No	Yes	Yes	No	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes	Yes	Yes
	Yes		No	No	No	No	No	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes	Yes	Yes
	Yes		No	Yes	Yes	Yes	No	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes	Yes	Yes
	Yes		No	Yes	Yes	Yes	No	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes	Yes	Yes
	Yes		No	No	No	No	No	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
	Yes		No	No	No	No	No	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes	Yes	Yes
2017 features
	0/4	4/4	3/4	4/4	3/4	0/4	4/4	4/4	4/4	4/4	4/4	4/4	4/4	4/4	4/4	0/4	4/4	4/4	0/4	4/4	4/4	4/4	4/4
	0/2	2/2	2/2	2/2	2/2	0/2	2/2	2/2	2/2	2/2	2/2	2/2	2/2	2/2	2/2	0/2	2/2	2/2	0/2	2/2	2/2	2/2	2/2
	0/2	2/2	2/2	2/2	0/2	0/2	2/2	2/2	2/2	2/2	2/2	2/2	2/2	2/2	2/2	0/2	2/2	2/2	0/2	2/2	2/2	2/2	2/2
	3/15	3/15	9/15	8/15	0/15	0/15	15/15	15/15	15/15	15/15	15/15	15/15	15/15	15/15	15/15	0/15	15/15	15/15	0/15	13/15	15/15	15/15	15/15
shared memory and atomics	0/17	0/17	0/17	0/17	0/17	0/17	0/17	0/17	0/17	0/17	0/17	17/17	17/17	0/17	0/17	0/17	17/17	17/17	0/17	17/17	0/17	0/17	0/17
2017 misc
	Yes		No	No	No	No	No	No	Yes	Yes	No	No	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
	Yes		No	No	No	No	No	No	No	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes	No	Yes	Yes	Yes	Yes
	Yes		No	No	No	No	No	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes	No	Yes	Yes	Yes	Yes
2017 annex b
	0/16	16/16	0/16	16/16	0/16	8/16	14/16	14/16	16/16	16/16	16/16	16/16	16/16	16/16	16/16	10/16	16/16	16/16	16/16	16/16	16/16	16/16	16/16
	0/4	0/4	0/4	0/4	0/4	0/4	4/4	4/4	4/4	4/4	4/4	4/4	4/4	4/4	4/4	0/4	4/4	4/4	0/4	4/4	4/4	4/4	4/4
	Yes		Yes	No	No	No	No	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
2018 features
	0/2	2/2	1/2	2/2	0/2	0/2	0/2	0/2	2/2	2/2	2/2	2/2	2/2	2/2	2/2	0/2	2/2	2/2	0/2	2/2	2/2	2/2	2/2
	0/3	3/3	3/3	3/3	0/3	0/3	0/3	3/3	3/3	3/3	3/3	3/3	3/3	3/3	3/3	0/3	0/3	3/3	0/3	3/3	3/3	3/3	3/3
	Yes		?	Yes	No	?	No	No	No	No	No	No	No	Yes	Yes	Yes	Yes	?	Yes	Yes	No	Yes	Yes	Yes	Yes
	Yes		No	Yes	No	No	No	No	No	No	No	No	No	Yes	Yes	Yes	Yes	No	Flag	Yes	No	Yes	Yes	Yes	Flag
	Yes		No	No	No	No	No	No	No	No	No	No	No	Yes	Yes	No	No	Flag	Yes	Yes	No	Yes	No	No	Yes
	Yes		No	Yes	No	No	No	No	No	No	No	No	No	Yes	Yes	Yes	Yes	No	Flag	Yes	No	Yes	Yes	Yes	Flag
	0/2	2/2	2/2	2/2	0/2	0/2	0/2	0/2	2/2	2/2	2/2	2/2	2/2	0/2	2/2	0/2	0/2	2/2	0/2	2/2	0/2	2/2	2/2
2018 misc
	Yes		No	No	Yes	No	No	No	No	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No	Yes	Yes	No	Yes	Yes	Yes	Yes
2019 misc
	0/3	0/3	0/3	3/3	0/3	0/3	0/3	0/3	3/3	3/3	3/3	3/3	3/3	3/3	3/3	0/3	0/3	3/3	0/3	0/3	3/3	3/3	0/3
	Yes		No	No	No	No	No	No	No	No	No	Yes	Yes	Yes	Yes	No	Yes	No	No	No	No	No	No	Yes	No
	0/7	0/7	0/7	0/7	0/7	1/7	4/7	4/7	7/7	7/7	7/7	7/7	7/7	4/7	4/7	4/7	4/7	7/7	1/7	7/7	4/7	4/7	4/7

^[1] Flagged features have to be enabled via --harmony flag

^[2] Flagged features have to be enabled via --harmony or --es_staging flag

^[3] Executed in Node.js/JVM mode via graalvm/bin/node --jvm.

^[4] The feature have to be enabled via "Experimental Javascript features" setting under about:flags

^[5] This feature is supported when using Babel with .

^[6] This feature is supported when using TypeScript with .

^[7] 

^[8] 

^[9] Requires the downlevelIteration compile option.

^[10] 

^[11] 

^[12] 

^[13] 

^[14] This feature requires native generators or regenerator-runtime, it's a part of babel-polyfill or babel-runtime.

^[15] Flagged features have to be enabled via "Enable experimental Javascript features" setting under about:flags

^[16] The feature was temporarily disabled to mitigate the Meltdown and Spectre CPU bugs.

^[17] The feature is available only in Firefox Developer Edition and Firefox Nightly builds.

^[18] The feature was  to mitigate the Meltdown and Spectre CPU bugs. It can be enabled via javascript.options.shared_memory setting under about:config

^[19] The feature was temporarily disabled to mitigate the Meltdown and Spectre CPU bugs.

^[20] The feature was  to mitigate the Meltdown and Spectre CPU bugs.

^[21] The feature have to be enabled via "Experimental enabled SharedArrayBuffer support in JavaScript." setting under about:flags

^[22] The behaviour of the Proxy “ownKeys” handler in presence of duplicate keys has been .

^[23] The feature have to be enabled via --js-flags="--harmony" flag

^[24] The feature is considered unstable, but can be enabled via --js-flags="--harmony-promise-finally" flag

 

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