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A polyfill combinator
github.com/financial-times/polyfill-service
financial-times/polyfill-service
polyfill-service
/
polyfills
/
Map
/
detect.js
8 lines
(7 loc)
•
124 B
JavaScript
View Raw
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'Map'
in
this
&& (
function
(
) {
try
{
return
(
new
Map
([[
1
,
1
], [
2
,
2
]])).
size
===
2
; }
catch
(e) {
return
false
; } }())