How to get data inside a Nested Array of object-CodePudding

const datafromback=[[{name:ravi}],[{}],[{}],[{}]]

I want to access ravi. Can anyone help me how can i see ravi in my console.with dealing with nested arrays

I not getting approach but i can use map to map through datafromback array but don't know how to get inside it

CodePudding user response：

one possible way is to use flat first to remove nested array

const datafromback=[[{name:ravi}],[{}],[{}],[{}]]
const flatternArray = datafromback.flat() // [{name:ravi},{},{},{}]
flatternArray.map(item => {
    console.log(item.name) // 
})

CodePudding user response：

you can do this :

const datafromback=[[{name:'ravi'}],[{}],[{}],[{}]]

const [{name}] =  datafromback.find(data=>data.find(item=>item.name === 'ravi')?.name === 'ravi')

    console.log(name)

CodePudding user response：

You can create a recursive function if you have non-fixed dimensions array :

const handle = e => {
  if (Array.isArray(e))
    return e.map(handle)
  else {
    console.log(e.name)
  }
}

handle(array)

Or if you know the dimensions, you can use nested for loops like so :

// example for 2 dimensions
for (let y = 0; y < array.length; y  )
  for (let x = 0; x < array[y].length; x  )
    console.log(array[y][x].name)

CodePudding user response：

Hey so what you have above is a 2D object array. if you just want to console you can use a nested forEach to get the key value, like this.

datafromback.forEach(data => {
  //this is the nested array that contains the objects
  data.forEach(obj => {
    //here you can access the actual object
    if (obj?.name) console.log(obj.name);
  });
});

this will return the value of key (name) if present ie ravi in your case.