How can you loop through keys and values in a JSON object using JavaScript?

I am attempting to cycle through the JSON data below:

{
"VERSION" : "2006-10-27.a",
"JOBNAME" : "EXEC_",
"JOBHOST" : "Test",
"LSFQUEUE" : "45",
"LSFLIMIT" : "2006-10-27",
"NEWUSER" : "3",
"NEWGROUP" : "2",
"NEWMODUS" : "640"
}

The keys in this JSON are dynamic. I aim to extract both the key and its corresponding value.

Answer №1

Utilize Object.keys() to retrieve an array of keys and employ forEach() for iteration.

var info = {
  "YEAR": "2020",
  "MONTH": "July",
  "DAY": "15",
  "HOUR": "10",
  "MINUTES": "30"
};

Object.keys(info).forEach(function(key) {
  console.log('Key : ' + key + ', Value : ' + info[key])
})

Answer №2

If you want to access the keys of an object in JavaScript, you can utilize either Object.keys or Object.entries.

const yourObject = {
  "VERSION": "2006-10-27.a",
  "JOBNAME": "EXEC_",
  "JOBHOST": "Test",
  "LSFQUEUE": "45",
  "LSFLIMIT": "2006-10-27",
  "NEWUSER": "3",
  "NEWGROUP": "2",
  "NEWMODUS": "640"
}
const keys = Object.keys(yourObject);
for (let i = 0; i < keys.length; i++) {
  const key = keys[i];
  console.log(key, yourObject[key]);
}

const yourObject = {
  "VERSION": "2006-10-27.a",
  "JOBNAME": "EXEC_",
  "JOBHOST": "Test",
  "LSFQUEUE": "45",
  "LSFLIMIT": "2006-10-27",
  "NEWUSER": "3",
  "NEWGROUP": "2",
  "NEWMODUS": "640"
}
const entries = Object.entries(yourObject);
for (let [key,value] of entries) {
  console.log(key, value);
}

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