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This page tests toString conversion of RegExp objects, particularly wrt to '/' characters and RegExp.prototype.

On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".


PASS RegExp('/').source is "\\/"
PASS RegExp('').source is "(?:)"
PASS RegExp.prototype.source is "(?:)"
PASS RegExp('/').toString() is "/\\//"
PASS RegExp('').toString() is "/(?:)/"
PASS RegExp.prototype.toString() is "/(?:)/"
PASS testForwardSlash("^/$", "/"); is true
PASS testForwardSlash("^/$", "/"); is true
PASS testForwardSlash("^\/$", "/"); is true
PASS testForwardSlash("^\\/$", "\/"); is true
PASS testForwardSlash("^\\\/$", "\/"); is true
FAIL testForwardSlash("^\\\\/$", "\\/"); should be true. Threw exception SyntaxError: Unexpected end of input
FAIL testForwardSlash("^\\\\\/$", "\\/"); should be true. Threw exception SyntaxError: Unexpected end of input
PASS testForwardSlash("x/x/x", "x\/x\/x"); is true
PASS testForwardSlash("x\/x/x", "x\/x\/x"); is true
PASS testForwardSlash("x/x\/x", "x\/x\/x"); is true
PASS testForwardSlash("x\/x\/x", "x\/x\/x"); is true
FAIL testLineTerminator("\n"); should be false. Was true.
PASS testLineTerminator("\\n"); is false
FAIL testLineTerminator("\r"); should be false. Was true.
PASS testLineTerminator("\\r"); is false
FAIL testLineTerminator("\u2028"); should be false. Was true.
PASS testLineTerminator("\\u2028"); is false
FAIL testLineTerminator("\u2029"); should be false. Was true.
PASS testLineTerminator("\\u2029"); is false
FAIL RegExp('[/]').source should be [/]. Was [\/].
PASS RegExp('\\[/]').source is '\\[\\/]'
PASS var o = new RegExp(); o.toString() === '/'+o.source+'/' && eval(o.toString()+'.exec(String())') is [""]
PASS successfullyParsed is true

TEST COMPLETE