arr1 = [
{
"levelNumber": "2",
"name": "abc",
},
{
"levelNumber": "3",
"name": "abc"
},
{
"levelNumber": "3",
"name": "raks",
}
]
my result array should have objects with max levelNumber i.e 3 in this case.
it should look like:
resultArr = [
{
"levelNumber": "3",
"name": "abc"
},
{
"levelNumber": "3",
"name": "raks",
}
]
note that here levelNumber can be anything.. please help me with the generic nodejs code to get duplicate max value objects
You can first find the max level of all the objects in the array and then filter the array
arr1 = [
{
"levelNumber": "2",
"name": "abc",
},
{
"levelNumber": "3",
"name": "abc"
},
{
"levelNumber": "3",
"name": "raks",
}
]
const maxLevel = String(Math.max(...arr1.map(obj => Number(obj.levelNumber))))
const maxLevelObjects = arr1.filter(obj => obj.levelNumber === maxLevel)
console.log(maxLevelObjects); const arr1 = [
{
levelNumber: '2',
name: 'abc',
},
{
levelNumber: '3',
name: 'abc',
},
{
levelNumber: '3',
name: 'raks',
},
];
const getHighLevelElements = (array) => {
if (array.length === 0) return null;
array.sort((elem1, elem2) => {
if (Number(elem1.levelNumber) < Number(elem2.levelNumber)) {
return 1;
}
if (Number(elem1.levelNumber) > Number(elem2.levelNumber)) {
return -1;
}
return 0;
});
return array.filter((elem) => elem.levelNumber === array[0].levelNumber);
};
const resultArr = getHighLevelElements([...arr1]);
console.log(resultArr);I would first have a variable called highestLevel to store the highest level number found in the array of objects (will be used later while looping), loop through the whole array and checking every key levelNumber and storing that number IF highestLevel is lower than the value of the current object levelNumber.
After I've looped through the array and got the actual highestLevel number, I would loop through again and only get the objects that are equivalent to my variable highestLevel