Find the error in the code. Difficulty: Hard😤

function processArray(arr) {
    let result = [];
    
    arr.forEach(item => {
        if (item != '') { 
            result.push(item);
        } else if (typeof item === 'number') { 
            result.push(item * 2);
        }
    });

    return result;
}

let data = [1, '', 2, 3, '', 5, null, undefined, 'hello'];

console.log(processArray(data));

Event delegation in Javascript!! Commonly used for handling clicks on dynamically added elements, managing events for a large number of similar elements efficiently, and simplifying event management in complex user interfaces.

Find the error in the code. Difficulty: Easy😁

number = 5
text = "Quantity: " + number

print(text)

#memes

JavaScript Neat Tricks you should know

What will this code output? Difficulty: Average🤨

const obj1 = { name: 'Alice' };
const obj2 = { name: 'Alice' };

if (obj1 === obj2) {
    console.log("true");
} else {
    console.log("false");
}

You must know these handy JavaScript array methods.

#memes

Find the error in the code. The answer should be: 15 Difficulty: Average😐

function sumArray(arr) {
    let sum = 0;
    arr.forEach(function(num) {
        sum =+ num;
    });
    return sum;
}

let numbers = [1, 2, 3, 4, 5];
console.log(sumArray(numbers));

#js #tips