Unravel the encoded string to enable JSON parsing

Here is an example of my JSON string structure

[{"id":0,"nextCallMills":0,"delay":0,"start":"...

I am facing an issue with JSON.parseString()

Even after trying unescape() and URIdecode(), I am unable to successfully convert this string so that it can be recognized as JSON by the parseString method. Any suggestions on how to fix this?

Answer №1

There is a distinction between html encoding and URI encoding. HTML entities cannot be decoded using a built-in function, but this response offers a straightforward solution:

The provided code snippet from the aforementioned answer is included below:

function convertHTMLEntity(text){
    const span = document.createElement('span');

    return text
    .replace(/&[#A-Za-z0-9]+;/gi, (entity,position,text)=> {
        span.innerHTML = entity;
        return span.innerText;
    });
}

console.log(JSON.parse(convertHTMLEntity(your_encoded_json)));

It's important to note that this method relies on the DOM and therefore can only be executed in a browser environment. If you're dealing with encoded double quotes and require a non-browser solution, you can utilize the following alternative:

console.log(JSON.parse(your_encoded_json.replace(/"/g, '"')));

Answer №2

To convert the character " to its ascii value ", you can use the following code:

JSON.parse("[{"id":0,"nextCallMills":0}]".split('"').join('"'))

This code snippet will result in:

(1) […]
0: {…}
  id: 0
  nextCallMills: 0
  ...

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