Why postgres is returning additional backslash in a simple query - node.js

Question

So in my node code postgres query is returning double quotes when it's returning its values.
As opposed to the query at pgAdmin.
I already tried to solve it using regex but this attempt was innefective. So if anyone had a problem like this and could help me, I would be glad.
Thanks in advance

Answer 1

There are neither quotes nor extra back slashes in the string. They are part of the string representation as literal.
Try console.log(value) - or even directly console.log('/\\w/g') - and you'll see the output is /\w/g as expected.

Answer 2

To answer my own question, after a lot of reading and researching, I managed to discover that because a backslash character is a special character it will create some problems around its implementation in regex, because it is not permitted to have a lone backslash stored in a variable for example.
This would never work stored inside a variable because the backslash have to be escaped.
/\w+/ig
Javascript will transform it automatically to be able to perform.
/\w+/ig
When reading
RegExp - Javascript documentation, I came across an interesting statement, the RegExp function will recognize and use a double slash regex, thankfully!
So I just adapted my regex to split it's statement from it's flags and mount it again using RegExp.
Below is the code that I used to solve this problem
// Getting values from postgres
const values = (await pgConn.admRead.query(clientQuery)).rows[0].value || [];
// Splitting regex ( values: /\w/g )
const valuesSplit = values.split('/'); // RESULT -> ['', w, g]
// Removing first array item when it's empty
if (valuesSplit[0].length === 0) {
valuesSplit.shift();
}
// Creating regex from splitted array
const regexOperation = new RegExp(valuesSplit[0], valuesSplit[1]);
// Executing replace function
const messageMasked = message.replace(regexOperation, '*');
return messageMasked;