javascript get array element by value code example
Example 1: find element in array javascript
const simpleArray = [3, 5, 7, 15];
const objectArray = [{ name: 'John' }, { name: 'Emma' }]
console.log( simpleArray.find(e => e === 7) )
console.log( simpleArray.find(e => e === 10) )
console.log( objectArray.find(e => e.name === 'John') )
Example 2: js array find
var ages = [3, 10, 18, 20];
function checkAdult(age) {
return age >= 18;
}
ages.find(checkAdult);
Example 3: javascript get array value
var array = []
array[0] = "hi"
array[1] = "dude"
var done = false
while (done == false){
var valueToFind = "hi";
var rounds = array.length;
if (rounds < 0){
return false
}
if (array[rounds] == valueToFind){
done = true
return rounds
}
rounds = rounds - 1
}