Discovering if a consistent value is present in every row of an array list can be achieved using Angular

Question

Discovering if a consistent value is present in every row of an array list can be achieved using Angular

In my array list, I have a collection of values structured as follows:

"data": {
  "input": [
      { "weight": 'KG', "Amt": 40 },
      { "weight": 'KG', "Amt": 20.25 },
      { "weight": 'KG', "Amt": 10.30 }
    ]
  }

How can I determine if all three records in the above list have the same weight using typescript? The weight is not constant but varies each time we receive the list.

"data": {
            "input": [
                {"weight":'', "Amt": 40},
                {"weight":'KG',"Amt": 20.25},
                {"weight":'Gram',"Amt": 10.30}
                {"weight":'KG',"Amt": 10.30}
            ]
        }

If all records in the list have the same weight, I need to return true.

javascript arrays angular typescript

Answer 1

Answer №1

One way to check this is by using the array.every method. Check out the code snippet below:

const products = [
  {
    "weight": '',
    "amount": 40
  }, {
    "weight": 'KG',
    "amount": 20.25
  }, {
    "weight": 'Gram',
    "amount": 10.30
  }, {
    "weight": 'KG',
    "amount": 10.30
  }
]

const sampleWeight = products[0].weight;
const allProductsAreKilos = products.every((product) => product.weight === 'KG');
console.log(allProductsAreKilos)

Answer 2

One way to check this is by using the array.every method. Check out the code snippet below:

const products = [
  {
    "weight": '',
    "amount": 40
  }, {
    "weight": 'KG',
    "amount": 20.25
  }, {
    "weight": 'Gram',
    "amount": 10.30
  }, {
    "weight": 'KG',
    "amount": 10.30
  }
]

const sampleWeight = products[0].weight;
const allProductsAreKilos = products.every((product) => product.weight === 'KG');
console.log(allProductsAreKilos)

Answer 3

Answer №2

If you're unsure about the various types of weights available...

const sampleWeights = [{"weight":'gram', "Amt": 40},
            {"weight":'gram',"Amt": 20.25},
            {"weight":' ',"Amt": 10.30}
        ];

const checkWeightDifference = (arr) => {
    const initialWeight = arr[0].weight;
    for(let i=1;i<arr.length;i++) {
        if(arr[i].weight!== initialWeight) {
            return false;
        }
    }
    return true;
}
console.log(checkWeightDifference(sampleWeights));

Answer 4

If you're unsure about the various types of weights available...

const sampleWeights = [{"weight":'gram', "Amt": 40},
            {"weight":'gram',"Amt": 20.25},
            {"weight":' ',"Amt": 10.30}
        ];

const checkWeightDifference = (arr) => {
    const initialWeight = arr[0].weight;
    for(let i=1;i<arr.length;i++) {
        if(arr[i].weight!== initialWeight) {
            return false;
        }
    }
    return true;
}
console.log(checkWeightDifference(sampleWeights));

Answer 5

Answer №3

Perform a double loop and compare each element individually:

flag: true;
array.forEach(item1 => {
    array.forEach(item2 => {
        if(item1.weight !=== item2.weight ) {
            flag= false;
        }
    });
});

Answer 6

Perform a double loop and compare each element individually:

flag: true;
array.forEach(item1 => {
    array.forEach(item2 => {
        if(item1.weight !=== item2.weight ) {
            flag= false;
        }
    });
});

Discovering if a consistent value is present in every row of an array list can be achieved using Angular

Answer №1

Answer №2

Answer №3

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