Objects in array. Output will get extra symbol-CodePudding

I am playing with array and object. If index value is 2, index value will get two stars symbols, and so on. I would like to get this result.

**2
******6
****4
***3


let arr = [
  {'item': 2},
  {'item': 6},
  {'item': 4},
  {'item': 3},
 
]

for(let i = 0; i < arr.length; i  ) {

  let obj = arr[i]

  for(let key in obj) {
    
   let x = '*'   obj[key]
   console.log(x)
  }
}

I am stuck here => 
*2
*6
*4
*6
*3

CodePudding user response：

Maybe you want to use let x = "*".repeat(obj[key]) obj[key] This method returnes n times the string (let n be the argument). For example "*".repeat(5) returns "*****".

CodePudding user response：

How about:

let arr = [
  {'item': 2},
  {'item': 6},
  {'item': 4},
  {'item': 3}, 
]

arr.forEach(item => {
    console.log("*".repeat(item['item']) item['item'])
})

CodePudding user response：

Use object.values in a for/or loop to get the values of each object in the array and string.repeat to multiply your '*' by that value:

   let arr = [
        {'item': 2},
        {'item': 6},
        {'item': 4},
        {'item': 3},
       
      ]
      
      for(let i = 0; i < arr.length; i  ) {
      
        let obj = arr[i]
      
        for (const value of Object.values(obj)) {
            let x = '*'.repeat(value);
            console.log(x   value);
        } 
      }

CodePudding user response：

padStart is another option. You don't need the obj variable.

let arr = [
    { 'item': 2 },
    { 'item': 6 },
    { 'item': 4 },
    { 'item': 3 },
]

for (let key of arr) {
    let x = ''.padStart(key.item, '*')   key.item;
    console.log(x)
}

CodePudding user response：

One way is to do with Array fill and concat methods.

const arr = [{ item: 2 }, { item: 6 }, { item: 4 }, { item: 3 }];

const stars = (n) => Array(n).fill("*").join("").concat(n);

arr.forEach(({ item }) => console.log(stars(item)));