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Crockford: "JavaScript: The Good Parts"
Chapter 8: Methods
RegExp regexp.exec(string)
At the very end of page 86 there is a nice example but I don't yet understand one small thing in it.
var text = '<html><body bgcolor=linen><p>' +
'This is <b>bold<\/b>!<\/p><\/body><\/html>';
Why are the / (forward slashes) escaped here?
I tried the example without them, seems to work just fine.
896
In a JavaScript string, there is no difference between / and \/.
Inside a <script> element the sequence </script> will end the element. To represent it inside a string as data, you can use <\/script>.
When generating JavaScript strings programatically, it is a common practise to escape all / characters as a defence against terminating scripts when used inside HTML.
This is just code that follows that pattern. There is no actual benefit achieved with this particular code.
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