How to remove space in keys of a JSON object

Question

I have an output like below:

output = {
  \"New Classroom\": [{
    \"Name\": \"Apple\",
    \"Age\": \"6\",
    \"Per         


        

Answer 1

• Use Object.keys to get all keys of the object
• Use String#replace to replace character from String

var obj = {
  "New Classroom": [{
    "Name": "Apple",
    "Age": "6",
    "Percentage": "24.00%"
  }, {
    "Name": "Orange",
    "Age": "5",
    "Percentage": "9.88%"
  }, {
    "Name": "Green",
    "Age": "2",
    "Percentage": "27.27%"
  }, {
    "Name": "Grey",
    "Age": "6",
    "Percentage": "12.63%"
  }]
};

Object.keys(obj).forEach(function(key) {
  var replaced = key.replace(' ', '');
  if (key !== replaced) {
    obj[replaced] = obj[key];
    delete obj[key];
  }
});
console.log(obj);

Note: Only single occurrence of space is considered, RegEx could be used if space occurrence is more than once!