Angular Filter array with only 1 object with the value true

Question

I want to filter this object

var tabledata = [
    0: {Email: "user1@test.com", APP1: true, APP2: false, APP3: false, APP4: true}
]

i want only the value EMAIL and TRUE visible like this.

var tabledata = [
    0: {"Email":"user1@test.com","APP1":true,"APP4":true}
]

or like this

var tabledata = {"Email":"user1@test.com","APP1":true,"APP4":true}

Answer 1

You can do like this.

var tabledata-2 = {}

for (key : tabledata[0].keys()) {
    if (key === 'Email' || tabledata[0][key]) {
       tabledata-2[key] = tabledata[0][key];
    }
}

Answer 2

You could remap your tabledata like that:

 let tabledata = [ {Email: "user1@test.com", APP1: true, APP2: false, APP3: false, APP4: true}, {Email: "abc@you.com", APP1: false, APP2: false, APP3: true, APP4: false}, ]; let result = tabledata.map((item) => { let dict = {}; for (key in item) { if (item[key]) { dict[key] = item[key] } } return dict; }) console.log(result)

Answer 3

This is not a valid syntax in JavaScript:

var tabledata = [
    0: {Email: "user1@test.com", APP1: true, APP2: false, APP3: false, APP4: true}
]

I assume you mean that tabledata is an object:

var tabledata = {
    0: {Email: "user1@test.com", APP1: true, APP2: false, APP3: false, APP4: true}
}

Also JavaScript wise it doesn't make a difference if you write:

{"Email": "..."}

or

{Email: "..."}

as long as the object key does not contain special characters.

If you want to map your object in a functional way, you use reduce and map:

Object.values(tabledata).map(entry => {
  // Remove values that are false.
  const filteredProperties = Object.entries(entry)
    .reduce((acc, [key, value]) => value !== false ? [...acc, [key, value]] : acc, []);
  return Object.fromEntries(filteredProperties);
})

This would then give you:

[
  {Email: "user1@test.com", APP1: true, APP4: true}
]

If tabledata is an array, the job is a bit simpler btw (I'm not sure from your post if tabledata really is an object, or if you copied the line from the console):

tabledata.map(entry => {
  const filteredProperties = Object.entries(entry)
    .reduce((acc, [key, value]) => value !== false ? [...acc, [key, value]] : acc, []);
  return Object.fromEntries(filteredProperties);
})

Answer 4

this seems to work to.

var tabledata_2 = {}
let objects = Object.values(tabledata)                      
    for(var i=0; i<objects.length; i++) {
       for(var key in objects[i]) {               
       if (!!objects[i][key]) {
       tabledata_2[key] = tabledata[0][key];
       }
     }
    console.log(tabledata_2) 
    }