How to delete a specific item form json data by usnig a button in java script

Question

How to delete a specific item from JSON using javascript

A mainly I want to delete Mon -> from time to be empty after clicking a button

const arr = {
    "Mon": [
        {
          "from": "08:00 AM",
          "to": "09:00 AM"
        },
        {
          "from": "06:00 PM",
          "to": "07:00 PM"
        }
      ],

    "Sun": [
        {
        "from": "",
        "to": ""
        },
        {
        "from": "",
        "to": ""
        }
    ]
};

const arr = {

    "Mon": [
        {
          "from": "08:00 AM",
          "to": "09:00 AM"
        },
        {
          "from": "06:00 PM",
          "to": "07:00 PM"
        }
      ],
      
    "Sun": [
        {
        "from": "",
        "to": ""
        },
        {
        "from": "",
        "to": ""
        }
    ]
};

it is not working please help me

It is difficult to offer solutions when the problem statement is simply, ["it doesn't work"](http://idownvotedbecau.se/itsnotworking/). Please [edit] your question to give a more complete description of what you expected to happen and how that differs from the actual results. See [ask] for hints on what makes a good explanation. — Toby Speight, Jun 06 '18 at 08:16
@MihaiAlexandru-Ionut OP says ` delete Mon -> from time` which means delete Mon? or delete Mon->from time? or both the from time from Mon? or first from time from Mon? — Ankit Agarwal, Jun 06 '18 at 08:17
@MihaiAlexandru-Ionut It does not suit you to answer such incomplete question — Ankit Agarwal, Jun 06 '18 at 08:17

score 0 · Answer 1 · answered Jun 06 '18 at 08:29

I am a slight novice to Javascript but I think you are using const which should be var. Then you can completely remove object through delete as mentioned below:

 delete arr.Mon.from;

or to make it empty you can use

  arr.Mon.from = new Date();

or to make it null you can use

arr.Mon.from = null;

How to delete a specific item form json data by usnig a button in java script

How to delete a specific item from JSON using javascript

1 Answers1