iterate through object array javascript code example
Example 1: loop through object javascript
var p = {
"p1": "value1",
"p2": "value2",
"p3": "value3"
};
for (var key in p) {
if (p.hasOwnProperty(key)) {
console.log(key + " -> " + p[key]);
}
}
for (var key of Object.keys(p)) {
console.log(key + " -> " + p[key])
}
for (let [key, value] of Object.entries(p)) {
console.log(`${key}: ${value}`);
}
Example 2: javascript loop through object example
var person={
first_name:"johnny",
last_name: "johnson",
phone:"703-3424-1111"
};
for (var property in person) {
console.log(property,":",person[property]);
}
Example 3: iterate through object array javascript
for (var key in array) {
var obj = myArray[key];
}
Example 4: iterate over array of objects javascript
const myArray = [{x:100}, {x:200}, {x:300}];
const newArray= myArray.map(element => {
return {
...element,
x: element.x * 2
};
});
console.log(myArray);
console.log(newArray);
Example 5: object iterate in javascript
for (let key in yourobject) {
if (yourobject.hasOwnProperty(key)) {
console.log(key, yourobject[key]);
}
}