Issue with JSON parsing of a string

Question

Issue with JSON parsing of a string

When working with JSON.parse(), I encountered an error.

$jsonStr = JSON.parse(["a:5:{i:0;s:4:"3900";i:1;s:4:"3892";i:2;s:4:"3896";i:3;s:4:"3894";i:4;s:4:"3902";}"])

Although I have tried the above code, what I actually need to do is extract the content and iterate through it. The goal is to retrieve the IDs 3900, 3892, 3896, 3894, and 3902, loop through them, and append them to a URL. I am capable of attaching them to a URL once retrieved, so all that remains is to loop through the string and extract those IDs without necessarily relying on JSON.parse. A solution using simple JavaScript will suffice.

var jsonStr=$jsonStr;
 var json=JSON.stringify(jsonStr);
 json=JSON.parse(json)

javascript json

Answer 1

Answer №1

Not sure if that code is valid JSON. Why not give it a try on JSONFormatter to ensure it follows the correct syntax? Just remember, JSON resembles a JavaScript object but requires all keys to be enclosed in double quotes.

Answer 2

Not sure if that code is valid JSON. Why not give it a try on JSONFormatter to ensure it follows the correct syntax? Just remember, JSON resembles a JavaScript object but requires all keys to be enclosed in double quotes.

Answer 3

Answer №2

Many have pointed out that the string you provided is not valid Json format.

If your goal is to extract the strings from it, you can achieve this with the following code snippet:

var data = 'a:5:{i:0;s:4:"3900";i:1;s:4:"3892";i:2;s:4:"3896";i:3;s:4:"3894";i:4;s:4:"3902";}';

var matches = data.match(/:"[^"]*/g).join('').split(':"').slice(1);

// iterate through the extracted strings:
matches.forEach(function (str) {
    console.log(str);
});

Output:

Answer 4

Many have pointed out that the string you provided is not valid Json format.

If your goal is to extract the strings from it, you can achieve this with the following code snippet:

var data = 'a:5:{i:0;s:4:"3900";i:1;s:4:"3892";i:2;s:4:"3896";i:3;s:4:"3894";i:4;s:4:"3902";}';

var matches = data.match(/:"[^"]*/g).join('').split(':"').slice(1);

// iterate through the extracted strings:
matches.forEach(function (str) {
    console.log(str);
});

Output:

Issue with JSON parsing of a string

Answer №1

Answer №2

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