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27 lines
680 B

/*===
SyntaxError
1
===*/
/* Escaped characters allow keywords to be used e.g. as variable names;
* e.g. "if" with first "i" escaped is no longer recognized as a keyword.
*
* This matches behavior in V8 and Rhino, but is not necessarily compliant.
* See E5 Section 7.6:
*
* "All interpretations of identifiers within this specification are
* based upon their actual characters regardless of whether or not an
* escape sequence was used to contribute any particular characters."
*/
try {
eval("if = 1;");
} catch (e) {
print(e.name);
}
try {
eval("\\u0069f = 1; print(\\u0069f);"); // double escape on purpose
} catch (e) {
print(e.name);
}