how to define function in object javascript
// Functions that are defined inside objects are called methods.
let example = {
calc: function (num1, num2) {
return num1 + num2;
},
};
// Calling the method
example.calc(1,2)how to define function in object javascript
// Functions that are defined inside objects are called methods.
let example = {
calc: function (num1, num2) {
return num1 + num2;
},
};
// Calling the method
example.calc(1,2)object methods in javascript
/// OBJECTS IN JAVASCRIPT
const testScore = {
damon: 89,
shawn: 91,
keenan: 80,
kim: 89,
};
Object.keys(testScore); // gives all keys
Object.values(testScore); // gives all values
Object.entries(testScore); // gives nested arrays of key-value pairs
// YOU CAN USE ( FOR-IN ) LOOP FOR ITERATION OVER OBJECTS
for (let person in testScore) {...}
// WE CAN'T DIRECTLY USE ( FOR-OF ) LOOP IN OBJECTS BUT WE CAN DO Like THIS:
for(let score of Object.values(testScore)){
console.log(score) // 89 91 80 89
}object object javascript
person = {
'name':'john smith'
'age':41
};
console.log(person);
//this will return [object Object]
//use
console.log(JSON.stringify(person));
//insteadjs objects
// To make an object literal:
const dog = {
name: "Rusty",
breed: "unknown",
isAlive: false,
age: 7
}
// All keys will be turned into strings!
// To retrieve a value:
dog.age; //7
dog["age"]; //7
//updating values
dog.breed = "mutt";
dog["age"] = 8;adding function to objects js
var myObj = {
myFunc: function(param){
//do stuff
}
}javascript object
[object Object]
Object { }
{ }Copyright © 2021 Codeinu
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