For example, a newline was escaped to be a backslash followed by a
newline, but it actually shall be a backslash followed by a character
'n'. It seemed okay with most of codes until in the case that C++ style
comments, i.e. single line comments, in the JavaScript codes. If the
newline characters are not escaped correctly, the JavaScript interpreter
will ignore everything that goes after the single line comments because
the interpreter obviously cannot find the newline where it's supposed to
stop treating codes as comments.
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