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I have a string
str = "{'a':1}"; JSON.parse(str); VM514:1 Uncaught SyntaxError: Unexpected token '(…) How can I parse the above string (str) into a JSON object ?
This seems like a simple parsing. It's not working though.
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Strings in JSON are specified using double quotes, i.e., " . If the strings are enclosed using single quotes, then the JSON is an invalid JSON .
JSON only allows double quotes (unless you control the data, and can use a library that is more liberal at parsing JSON - but a JSON file with single quotes is not truly a JSON file)
In JSON, you don't need to escape single quotes inside a value that is enclosed with double-quotes. In the case that you have double quotes as part of a value (that is enclosed with double quotes) then you would need to escape them.
Use the JavaScript function JSON.parse() to convert text into a JavaScript object: const obj = JSON.parse('{"name":"John", "age":30, "city":"New York"}'); Make sure the text is in JSON format, or else you will get a syntax error.
The JSON standard requires double quotes and will not accept single quotes, nor will the parser.
If you have a simple case with no escaped single quotes in your strings (which would normally be impossible, but this isn't JSON), you can simple str.replace(/'/g, '"') and you should end up with valid JSON.
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