Encapsulating data with JSON.stringify

I'm currently working on creating an object that has the following structure:

let outputOut = {
    "_id": id[i],
    "regNum": code[i],
    "sd": sd[i],
    "pd": ptOut,
    "p": p[i],
...}
//output 
fs.writeFile('./output/file.json', JSON.stringify(output, null, 2), 'utf-8');

The issue I'm facing is that I need the values of "p" within this object to be enclosed in quotation marks. Currently, the values are being printed out without any quotes.

I attempted to escape the quote characters by using the following format:

"p": "\"" + p[i] + "\"'",

This resulted in this. I also tried this approach:

"p": '"' + p[i] + '"',

However, it produced this.

Does anyone know how I can ensure that the values of variable p are wrapped in quotation marks, like so: "139500000"?

javascriptjsonstringify

Answer №1

I'm looking to enclose the "p" values within this object in quotation marks.

Essentially, you want these values to be converted into strings. In JSON, strings are denoted by "...". It appears that p[i] is currently a numeric value. To change it into a string, you can use either String(x) or x.toString():

"p": String(p[i]),

Answer №2

When dealing with a string-valued property, it will be converted into a string format with quotation marks around it.

let result = {
    "_id": identification[i],
    "registrationNumber": code[i],
    "startingDate": start[i],
    "completionDate": endOut,
    "percentage": String(percent[i]),
         ^^^^^^^^^^^^
...}

Alternatively, consider utilizing the replacer parameter in the JSON.stringify function:

JSON.stringify(result, function(key, value) {
  if (key === 'percentage') value = String(value);
  return value;
});

Answer №3

Successfully tested and working for me.

const num = 2048;

const result = '\"'+ num + '\"';
console.log(result);

Feel free to view the demo on my personal fiddle link!

https://jsfiddle.net/UniqueUser/abcd1234/

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