javascript get length of object
var person={
"first_name":"Harry",
"last_name":"Potter",
"age":14
};
var personSize = Object.keys(person).length; //gets number of properties (3)javascript get length of object
var person={
"first_name":"Harry",
"last_name":"Potter",
"age":14
};
var personSize = Object.keys(person).length; //gets number of properties (3)javascript object entries
// Object Entries returns object as Array of [key,value] Array
const object1 = {
a: 'somestring',
b: 42
}
Object.entries(object1) // Array(2) [["a", "something"], ["b", 42]]
.forEach(([key, value]) => console.log(`${key}: ${value}`))
// "a: somestring"
// "b: 42"object.keys
const object1 = {
a: 'somestring',
b: 42,
c: false
};
console.log(Object.keys(object1));
// expected output: Array ["a", "b", "c"]js object keys
var myObj = {no:'u',my:'sql'}
var keys = Object.keys(myObj);//returnes the array ['no','my'];object.keys javascript
const object1 = {
a: 'somestring',
b: 42,
c: false
};
console.log(Object.keys(object1));get keys of object js
var buttons = {
foo: 'bar',
fiz: 'buz'
};
for ( var property in buttons ) {
console.log( property ); // Outputs: foo, fiz or fiz, foo
}Copyright © 2021 Codeinu
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