function propertiesCount(){
let expert = {
specialty: "JavaScript basics",
length: 3,
focus: "front-end development"
};
console.log(Object.keys(expert).length);
console.log(propertiesCount(expert));
}
I'm not entirely sure about the intention behind this code snippet, but here is a piece of code that I came up with. Hopefully, it aligns with what you were looking for.
function countProperties() {
let person = {
name: "John",
age: 30,
occupation: "Engineer"
};
return Object.keys(person).length;
}
console.log(countProperties());
This function defines an object called 'person' and then calculates and returns the number of properties within that object. Finally, the console displays the result.
function propertiesCount() {
let instructor = {
course: "React fundamentals",
duration: 5,
field: "frontend development"
};
console.log(Object.keys(instructor).length);
// console.log(propertiesCount(instructor)); this function is recursive
}
console.log(propertiesCount(instructor));maximum stack error. Removing it will ensure smooth operation. Use return statement to retrieve the property count.
try this :
function propertiesCount(obj){
return Object.keys(obj).length;
}
var propertyLength = propertiesCount({course: "React fundamentals", duration: 5, field: "frontend development"});
// or
//let instructor = {
// course: "React fundamentals",
// duration: 5,
// field: "frontend development"
// };
// var propertyLength = propertiesCount(instructor);
// Or in ES6
// const propertiesCount = obj => Object.keys(obj).length;
console.log(propertyLength);
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