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ECMAScript spec abstract operations.
github.com/ljharb/es-abstract
ljharb/es-abstract
es-abstract
/
helpers
/
isLeadingSurrogate.js
6 lines
(4 loc)
•
157 B
JavaScript
View Raw
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'use strict'
;
module
.
exports
=
function
isLeadingSurrogate
(
charCode
) {
return
typeof
charCode ===
'number'
&& charCode >=
0xD800
&& charCode <=
0xDBFF
; };