Create an array of strings in the format of key-value pairs

Question

Create an array of strings in the format of key-value pairs

Incoming data needs to be transformed into key value pairs:

SECRET_TOKEN=Iwillruletheworld;SECRET_REFRESH_TOKEN=Iwillruletheworld;SERVER_PORT=3000;SERVER_WS_PORT=4000;NODE_URI=http://test.abc.com/#/;MONGODB_DEFAULT_URI=mongodb;MONGODB_HOST=localhost;MONGODB_PORT=27017;

To start, separate the data using ;:

data.split(';');

Current Output

[ 'SECRET_TOKEN=Iwillruletheworld',
  'SECRET_REFRESH_TOKEN=Iwillruletheworld',
  'SERVER_PORT=3000',
  'SERVER_WS_PORT=4000',
  'NODE_URI=http://test.abc.com/#/',
  'MONGODB_DEFAULT_URI=mongodb',
  'MONGODB_HOST=localhost',
  'MONGODB_PORT=27017'
]

The goal now is to convert it into key value pairs:

Expected Output

[ 'SECRET_TOKEN'='Iwillruletheworld',
  'SECRET_REFRESH_TOKEN'='Iwillruletheworld',
  'SERVER_PORT'='3000',
  'SERVER_WS_PORT'='4000',
  'NODE_URI'='http://test.abc.com/#/',
  'MONGODB_DEFAULT_URI'='mongodb',
  'MONGODB_HOST'='localhost',
  'MONGODB_PORT'='27017'
]

A task remains - inserting ' wherever = appears. Assistance would be appreciated.

javascript arrays

Answer 1

Answer №1

If you prefer the output to be an object (since the provided output is invalid), one approach is to split by ;, remove empty items (.filter(Boolean)), and use reduce to create a key-value pair object.

This method assumes there are no duplicate keys in the input.

let input = `SECRET_TOKEN=Iwillruletheworld;SECRET_REFRESH_TOKEN=Iwillruletheworld;SERVER_PORT=3000;SERVER_WS_PORT=4000;NODE_URI=http://test.abc.com/#/;MONGODB_DEFAULT_URI=mongodb;MONGODB_HOST=localhost;MONGODB_PORT=27017;`;

let res = input.split(';').filter(Boolean).reduce((acc, next) => {
  let [key, value] = next.split('=');
  acc[key] = value;
  return acc;
}, {});

console.log(res);

Edit (2021): Another more "modern" solution involves using Object.fromEntries instead of .reduce. The result remains the same, just with a slightly different approach.

let input = `SECRET_TOKEN=Iwillruletheworld;SECRET_REFRESH_TOKEN=Iwillruletheworld;SERVER_PORT=3000;SERVER_WS_PORT=4000;NODE_URI=http://test.abc.com/#/;MONGODB_DEFAULT_URI=mongodb;MONGODB_HOST=localhost;MONGODB_PORT=27017;`;

const mapEntries = Object.fromEntries(
  input.split(';').filter(Boolean).map(v => v.split('='))
);
console.log(mapEntries);

Answer 2

If you prefer the output to be an object (since the provided output is invalid), one approach is to split by ;, remove empty items (.filter(Boolean)), and use reduce to create a key-value pair object.

This method assumes there are no duplicate keys in the input.

let input = `SECRET_TOKEN=Iwillruletheworld;SECRET_REFRESH_TOKEN=Iwillruletheworld;SERVER_PORT=3000;SERVER_WS_PORT=4000;NODE_URI=http://test.abc.com/#/;MONGODB_DEFAULT_URI=mongodb;MONGODB_HOST=localhost;MONGODB_PORT=27017;`;

let res = input.split(';').filter(Boolean).reduce((acc, next) => {
  let [key, value] = next.split('=');
  acc[key] = value;
  return acc;
}, {});

console.log(res);

Edit (2021): Another more "modern" solution involves using Object.fromEntries instead of .reduce. The result remains the same, just with a slightly different approach.

let input = `SECRET_TOKEN=Iwillruletheworld;SECRET_REFRESH_TOKEN=Iwillruletheworld;SERVER_PORT=3000;SERVER_WS_PORT=4000;NODE_URI=http://test.abc.com/#/;MONGODB_DEFAULT_URI=mongodb;MONGODB_HOST=localhost;MONGODB_PORT=27017;`;

const mapEntries = Object.fromEntries(
  input.split(';').filter(Boolean).map(v => v.split('='))
);
console.log(mapEntries);

Answer 3

Answer №2

One way to convert it into a JavaScript object (not an array) is:

var arr = [ 'SECRET_TOKEN=Iwillruletheworld',
  'SECRET_REFRESH_TOKEN=Iwillruletheworld',
  'SERVER_PORT=3000',
  'SERVER_WS_PORT=4000',
  'NODE_URI=http://test.abc.com/#/',
  'MONGODB_DEFAULT_URI=mongodb',
  'MONGODB_HOST=localhost',
  'MONGODB_PORT=27017'
];

var obj = {};

arr.forEach((x) => {
  var kv = x.split('=');
  obj[kv[0]] = kv[1];
});

console.log(obj);

Answer 4

One way to convert it into a JavaScript object (not an array) is:

var arr = [ 'SECRET_TOKEN=Iwillruletheworld',
  'SECRET_REFRESH_TOKEN=Iwillruletheworld',
  'SERVER_PORT=3000',
  'SERVER_WS_PORT=4000',
  'NODE_URI=http://test.abc.com/#/',
  'MONGODB_DEFAULT_URI=mongodb',
  'MONGODB_HOST=localhost',
  'MONGODB_PORT=27017'
];

var obj = {};

arr.forEach((x) => {
  var kv = x.split('=');
  obj[kv[0]] = kv[1];
});

console.log(obj);

Answer 5

Answer №3

To parse the string and convert it into an object, you can split the string using ';' as delimiter, then further split each part using '=' as delimiter. Next, you can create an array of objects by mapping over the splitted parts and use Object.assign to merge them into a single object.

let str = 'SECRET_TOKEN=Iwillruletheworld;SECRET_REFRESH_TOKEN=Iwillruletheworld;SERVER_PORT=3000;SERVER_WS_PORT=4000;NODE_URI=http://test.abc.com/#/;MONGODB_DEFAULT_URI=mongodb;MONGODB_HOST=localhost;MONGODB_PORT=27017';
let out = Object.assign({}, ...str.split(';').map(e => ({[e.split('=')[0]]: e.split('=')[1]})));
console.log(out)

Answer 6

To parse the string and convert it into an object, you can split the string using ';' as delimiter, then further split each part using '=' as delimiter. Next, you can create an array of objects by mapping over the splitted parts and use Object.assign to merge them into a single object.

let str = 'SECRET_TOKEN=Iwillruletheworld;SECRET_REFRESH_TOKEN=Iwillruletheworld;SERVER_PORT=3000;SERVER_WS_PORT=4000;NODE_URI=http://test.abc.com/#/;MONGODB_DEFAULT_URI=mongodb;MONGODB_HOST=localhost;MONGODB_PORT=27017';
let out = Object.assign({}, ...str.split(';').map(e => ({[e.split('=')[0]]: e.split('=')[1]})));
console.log(out)

Answer 7

Answer №4

let info = 'TOP_SECRET_KEY=Iamtheboss;SECRET_REFRESH_TOKEN=Ihavethepower;SERVER_PORT=3000;SERVER_WS_PORT=4000;NODE_URI=http://supersecret.com/#/;MONGODB_DEFAULT_URI=mongodb;MONGODB_HOST=localhost;MONGODB_PORT=27017';
//assuming the information you receive is a collection of strings

let dataArr = info.split(';');
let infoObj = {};
for (let item of dataArr){
   let splitItem = item.split('=');
   infoObj[splitItem[0]] = splitItem[1];
}
console.log(infoObj);

Answer 8

let info = 'TOP_SECRET_KEY=Iamtheboss;SECRET_REFRESH_TOKEN=Ihavethepower;SERVER_PORT=3000;SERVER_WS_PORT=4000;NODE_URI=http://supersecret.com/#/;MONGODB_DEFAULT_URI=mongodb;MONGODB_HOST=localhost;MONGODB_PORT=27017';
//assuming the information you receive is a collection of strings

let dataArr = info.split(';');
let infoObj = {};
for (let item of dataArr){
   let splitItem = item.split('=');
   infoObj[splitItem[0]] = splitItem[1];
}
console.log(infoObj);

Answer 9

Answer №5

Here is a code snippet to create an array of strings:

const str = 'SECRET_TOKEN=Iwillruletheworld;SECRET_REFRESH_TOKEN=Iwillruletheworld;SERVER_PORT=3000;SERVER_WS_PORT=4000;NODE_URI=http://test.abc.com/#/;MONGODB_DEFAULT_URI=mongodb;MONGODB_HOST=localhost;MONGODB_PORT=27017;'
const strArray = str.split(';');
const corrArray = strArray.map(s=> s.replace('=', "'='")).map(s=> `'${s}'`);
console.log(corrArray);

If you prefer objects instead:

const str = 'SECRET_TOKEN=Iwillruletheworld;SECRET_REFRESH_TOKEN=Iwillruletheworld;SERVER_PORT=3000;SERVER_WS_PORT=4000;NODE_URI=http://test.abc.com/#/;MONGODB_DEFAULT_URI=mongodb;MONGODB_HOST=localhost;MONGODB_PORT=27017;'
const objs = str.split(';').map(a=> {
    const divided = a.split('=');
    const obj = {};
    obj[divided[0]] = divided[1];
    return obj;
})

Answer 10

Here is a code snippet to create an array of strings:

const str = 'SECRET_TOKEN=Iwillruletheworld;SECRET_REFRESH_TOKEN=Iwillruletheworld;SERVER_PORT=3000;SERVER_WS_PORT=4000;NODE_URI=http://test.abc.com/#/;MONGODB_DEFAULT_URI=mongodb;MONGODB_HOST=localhost;MONGODB_PORT=27017;'
const strArray = str.split(';');
const corrArray = strArray.map(s=> s.replace('=', "'='")).map(s=> `'${s}'`);
console.log(corrArray);

If you prefer objects instead:

const str = 'SECRET_TOKEN=Iwillruletheworld;SECRET_REFRESH_TOKEN=Iwillruletheworld;SERVER_PORT=3000;SERVER_WS_PORT=4000;NODE_URI=http://test.abc.com/#/;MONGODB_DEFAULT_URI=mongodb;MONGODB_HOST=localhost;MONGODB_PORT=27017;'
const objs = str.split(';').map(a=> {
    const divided = a.split('=');
    const obj = {};
    obj[divided[0]] = divided[1];
    return obj;
})

Create an array of strings in the format of key-value pairs

Answer №1

Answer №2

Answer №3

Answer №4

Answer №5

Similar questions

What is the best way to repair all the data or preserve it using my current theme?

What is the process for obtaining a value when you click and then retrieving the associated ID?

The getHours function seems to be malfunctioning when calculating the difference between dates

Retrieving data from a simulated angular service and making calls accordingly

Ways to eliminate the index of the parent array from an array

Storing an array of objects with properties in a plist file for safekeeping

Troubleshooting Google Analytics on Localhost: Investigating Issues with Test Code

Exploring the applications of the `this` keyword within a jQuery-based JavaScript object

What is the best way to display numerous images on a cube face while also organizing them like a gallery wall?

What is the correct way to set up Cypress intercepts within a beforeEach function?

What is the best way to change a Buffer array into hexadecimal format?

Issue encountered when attempting to connect an external script to a Vue single file component

Error in Node.js child_process: unable to access the property '_writableState' as it is undefined

Identify the mouse's location in relation to its parent element, not the entire webpage

A step-by-step guide on confirming reCAPTCHA during a server request

"Upon loading an FBX file in Threejs, some model parts are not displayed

Adding the tasksMap to the dependency array in the React useEffect hook will result in an endless loop

Combining default and named exports in Rollup configuration

Using Java to Work with Nested JSON Arrays

Having trouble displaying information in JavaScript after using getScript() to retrieve data from an API containing a JSON block database