NativeScript V8 JavaScriptCore
Minor difference (1 point) Small feature (2 points) Medium feature (4 points) Large feature (8 points)
NativeScript Desktop browsers
Feature name Current browser NS 5.4 Android
v8
NS 6.0 Android
v8
NS Next Android
v8
NS 5.4 iOS
JavaScriptCore
NS 6.0 iOS
JavaScriptCore
NS Next iOS
JavaScriptCore
CH 75,
OP 62
CH 77,
OP 64
SF 12.1 SF TP
§Intl object MDN (Mozilla Development Network) logo  0/2 0/2 0/2 0/2 0/2 0/2 2/2 2/2 2/2 2/2
§exists on global No No No No No No Yes Yes Yes Yes
§has prototype of Object No No No No No No Yes Yes Yes Yes
§Intl.Collator MDN (Mozilla Development Network) logo  0/4 0/4 0/4 0/4 0/4 0/4 4/4 4/4 4/4 4/4
§exists on intl object No No No No No No Yes Yes Yes Yes
§creates new Collator instances No No No No No No Yes Yes Yes Yes
§constructor called without new creates instances No No No No No No Yes Yes Yes Yes
§accepts valid language tags No No No No No No Yes Yes Yes Yes
§Intl.Collator.prototype.compare MDN (Mozilla Development Network) logo  0/1 0/1 0/1 0/1 0/1 0/1 1/1 1/1 1/1 1/1
§exists on Collator prototype No No No No No No Yes Yes Yes Yes
§Intl.Collator.prototype.resolvedOptions MDN (Mozilla Development Network) logo  0/1 0/1 0/1 0/1 0/1 0/1 1/1 1/1 1/1 1/1
§exists on Collator prototype No No No No No No Yes Yes Yes Yes
§NumberFormat MDN (Mozilla Development Network) logo  0/5 0/5 0/5 0/5 0/5 0/5 5/5 5/5 5/5 5/5
§exists on intl object No No No No No No Yes Yes Yes Yes
§exists on intl object No No No No No No Yes Yes Yes Yes
§creates new NumberFormat instances No No No No No No Yes Yes Yes Yes
§constructor called without new creates instances No No No No No No Yes Yes Yes Yes
§accepts valid language tags No No No No No No Yes Yes Yes Yes
§DateTimeFormat MDN (Mozilla Development Network) logo  0/6 0/6 0/6 0/6 0/6 0/6 6/6 6/6 6/6 6/6
§exists on intl object No No No No No No Yes Yes Yes Yes
§creates new DateTimeFormat instances No No No No No No Yes Yes Yes Yes
§constructor called without new creates instances No No No No No No Yes Yes Yes Yes
§accepts valid language tags No No No No No No Yes Yes Yes Yes
§resolvedOptions().timeZone defaults to the host environment No No No No No No Yes Yes Yes Yes
§accepts IANA timezone names No No No No No No Yes Yes Yes Yes
§String.prototype.localeCompare MDN (Mozilla Development Network) logo  1/1 1/1 1/1 1/1 1/1 1/1 1/1 1/1 1/1 1/1
§exists on String prototype Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
§Number.prototype.toLocaleString MDN (Mozilla Development Network) logo  1/1 1/1 1/1 1/1 1/1 1/1 1/1 1/1 1/1 1/1
§exists on Number prototype Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
§Array.prototype.toLocaleString MDN (Mozilla Development Network) logo  1/1 1/1 1/1 1/1 1/1 1/1 1/1 1/1 1/1 1/1
§exists on Array prototype Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
§Object.prototype.toLocaleString MDN (Mozilla Development Network) logo  1/1 1/1 1/1 1/1 1/1 1/1 1/1 1/1 1/1 1/1
§exists on Object prototype Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
§Date.prototype.toLocaleString MDN (Mozilla Development Network) logo  1/1 1/1 1/1 1/1 1/1 1/1 1/1 1/1 1/1 1/1
§exists on Date prototype Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
§Date.prototype.toLocaleDateString MDN (Mozilla Development Network) logo  1/1 1/1 1/1 1/1 1/1 1/1 1/1 1/1 1/1 1/1
§exists on Date prototype Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
§Date.prototype.toLocaleTimeString MDN (Mozilla Development Network) logo  1/1 1/1 1/1 1/1 1/1 1/1 1/1 1/1 1/1 1/1
§exists on Date prototype Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
Thanks to Kangax, webspacedspace, zloirock and the rest of the people who contributed to Kangax ES Compatibility Table

This site uses the base of the awesome compat-table and adds all the code to handle the additional testing on the NativeScript runtimes, and ability to export the data and collate it back to these tables...