{
const obj = {
name: "john",
age: 10,
};
obj.age = 12;
return obj;
}
array = [ 1, , ]
{
array.push("12" + 3, 12 + 3, "12" * 3, "12" - 3);
return array;
}
array[1]
{
const array = [1, 2];
const [first, , c = 5, d] = array;
console.log(a, b, c)
}
{
let numberMap = new Map([
[1, 'one'],
[2, 'two'],
[3, 'three'],
]);
console.log(numberMap.get(4));
numberMap.set(4, 'fourth');
numberMap.set(4, 'four');
console.log(numberMap.get(4));
return numberMap;
}
{
let numberMap = new Map([
[1, 'one'],
[2, 'two'],
[3, 'three'],
]);
for (let [key, value] of numberMap) {
key--;
console.log(`${key} = ${value}`);
}
console.log("After change");
numberMap.forEach((value, key) => {
console.log(`${key} = ${value}`);
})
return numberMap
}
{
const Fibonacci = function (n) {
if (n == 1 || n == 2) {
return 1;
}
return Fibonacci(n - 1) + Fibonacci(n - 2);
};
let array = [];
for (let i = 1; i <= 10; i++) {
array.push(Fibonacci(i));
}
return array;
}
{
}
One platform to build and deploy the best data apps
Experiment and prototype by building visualizations in live JavaScript notebooks. Collaborate with your team and decide which concepts to build out.
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