for in object code example

Example 1: javascript loop object

let obj = {
  key1: "value1",
  key2: "value2",
  key3: "value3"
}

Object.keys(obj).forEach(key => {
    console.log(key, obj[key]);
});
// key1 value1
// key2 value2
// key3 value3

// using for in - same output as above
for (let key in obj) {
  let value = obj[key];
  console.log(key, value);
}

Example 2: js loop through object

const obj = { a: 1, b: 2 };

Object.keys(obj).forEach(key => {
	console.log("key: ", key);
  	console.log("Value: ", obj[key]);
} );

Example 3: js loop over object

const object = {a: 1, b: 2, c: 3};

for (const property in object) {
  console.log(`${property}: ${object[property]}`);
}

Example 4: js for in object

var obj = { foo: 'bar', baz: 42 };
console.log(Object.entries(obj)); // [ ['foo', 'bar'], ['baz', 42] ]

for(const [i, val] of Object.entries(obj))
	new_obj[i] = val;

Example 5: for in object javascript

var obj = { foo: 'bar', baz: 42 };

Object.keys(obj).forEach((key) => {
    const el = obj[key];
    console.log(
      {
        key: key,
        value: el
      }
    );
});

Example 6: for in loop javascript

var person = {"name":"taylor","age":31};
for (property in person) {
	console.log(property,person[property]);
}
//name taylor
//age 31