Double backslash on quotes when JSON stringifying an array of strings

Question

I'm trying to stringify a JSON object that contains a string with quotes inside of it:

array = ['bar "foo"']

However, the string is created as: '["bar \\"foo\\""]' when I was hoping for something more along the lines of '["bar \"foo\""]'. Why are there two backslashes generated? Thanks

That was just a placeholder for my actual string. That has double quotes surrounding a word. — sheldonk
– sheldonk, Commented Jul 17, 2013 at 23:37
how did you get the result as '["bar \\"foo\\""]'. console.log() ? — Hieu Nguyen
– Hieu Nguyen, Commented Jul 17, 2013 at 23:40

Bergi · Accepted Answer · 2013-07-17 23:48:41Z

13

Why are there two backslashes generated?

Because backslashes must be escaped by backslashes to represent one single backslash in a string literal.

The string

'["bar \\"foo\\""]'
// or
"[\"bar \\\"foo\\\"\"]"

represents the value

["bar \"foo\""]

which is JSON for an array object containing the string value bar "foo".

Probably the confusion was caused when you expected to see the value but the tool you used for that printed the string literal.

answered Jul 17, 2013 at 23:48

Bergi

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