这部法律于2007年3月生效。
( overrideMimeType ) in (new XMLHttpRequest())
但jslint给我这一信息:
Problem at line 1 character 22: Unexpected in . Compare with undefined, or use the hasOwnProperty method instead.
如何按照jslint正确写说明?
I tryed that but it return false :
(new XMLHttpRequest()).hasOwnProperty( overrideMimeType )