07-Oct-2022
.
Admin
Hello Friends,
Today, how to check if a key exists in an object node.js is our main topic. if you want to see an example of check if a key exists in an object nodejs then you are in the right place. In this article, we will implement a check if a key exists in an object node js. you can see nodejs check if a key exists in an object. Let's get started with node js to check if a key exists in an object.
This example is to check if a key exists in an object nodejs. I will give a simple example of check if a key exists in an object using the if condition.
Let's start following example:
Example: 1
// create color object
var car = {
color: 'blue'
}
// check key exit or not
if ('color' in car) {
console.log('key exists!')
}else{
console.log('key not exists!')
}
Output:
key exists!
Example: 2
// create color object
var car = {
color: 'blue'
}
// check key exit or not
if ('number' in car) {
console.log('key exists!')
}else{
console.log('key not exists!')
}
Output:
key not exists!
I hope it can help you...
#Node JS