for each value in object javascript code example
Example 1: foreach object javascript
const students = {
adam: {age: 20},
kevin: {age: 22},
};
Object.entries(students).forEach(student => {
// key: student[0]
// value: student[1]
console.log(`Student: ${student[0]} is ${student[1].age} years old`);
});
Example 2: for each element in object
var obj = {
first: "John",
last: "Doe"
};
//
// Visit non-inherited enumerable keys
//
Object.keys(obj).forEach(function(key) {
console.log(key, obj[key]);
});
Example 3: get all entries in object as array hjs
const object1 = {
a: 'somestring',
b: 42
};
for (let [key, value] of Object.entries(object1)) {
console.log(`${key}: ${value}`);
}
// expected output:
// "a: somestring"
// "b: 42"
// order is not guaranteed
Example 4: javascript foreach object
function logArrayElements(element, index, array) {
console.log('a[' + index + '] = ' + element)
}
// Notice that index 2 is skipped, since there is no item at
// that position in the array...
[2, 5, , 9].forEach(logArrayElements)
// logs:
// a[0] = 2
// a[1] = 5
// a[3] = 9