JAVASCRIPT

find element in array javascript

const simpleArray = [3, 5, 7, 15];
const objectArray = [{ name: 'John' }, { name: 'Emma' }]

console.log( simpleArray.find(e => e === 7) )
// expected output 7

console.log( simpleArray.find(e => e === 10) )
// expected output undefined

console.log( objectArray.find(e => e.name === 'John') )
// expected output { name: 'John' }

find in array function

const persons = [
  {name:"Shirshak",gender:"male"},
  {name:"Amelia",gender:"female"},
  {name:"Amand",gender:"male"}
]
//filter return all objects in array
let male = persons.filter(function(person){
return person.gender==='male'
})
console.log(male) //[{name:"Shirshak",gender:"male"},{name:"Amand",gender:"male"}]

//find return first object that match condition
let female = persons.find(function(person){
return person.gender==='female'
})

js find in array

const inventory = [
  {id: 23, quantity: 2},
  {id: '24', quantity: 0},
  {id: 25, quantity: 5}
];
// Check type and value using ===
const result = inventory.find( ({ id }) => id === 23 );
// Check only value using ==
const result = inventory.find( ({ id }) => id == 24 );

js to find value in array

console.log( simpleArray.find(e => e === 7) )

search an element in an array

  public static void main(String[] args) {

        int[] xr = {1, 2, 3, 4, 5};
        int key = 3;
        for (int i = 0; i < xr.length ; i++) {
            if (key==xr[i]){
                System.out.println("element is: "+i);
            }
        }
    }

search in array javascript

// easyui

function cekNilai9box(value,row){
    var getData = row.compare_nilai9box;
    var assesment = getData.split(',');
    var cek = assesment.find(e => e == row.nilai9box_value_ori);
    
    if(cek == undefined){
        return '<span style="color:red;">'+ value +'</span>';
    }else{
        return value;
    }
}