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Conditional Statements and Loops in JavaScript

bookfor...of and forEach

Imagine you have a grocery list and you want to check every single item to make sure nothing is missing. You would start at the top of the list and look at each item one by one until you reach the end. In programming, when you want to process every item in a list—like an array of fruits—JavaScript gives you two handy tools: the for...of loop and the forEach method. Both help you visit each element in an array, but they work in slightly different ways.


              
12345

            
const fruits = ["apple", "banana", "cherry"];

for (const fruit of fruits) {
  console.log("I need to buy " + fruit);
}
copy

              
12345

            
const fruits = ["apple", "banana", "cherry"];

fruits.forEach(function(fruit) {
  console.log("I need to buy " + fruit);
});
copy
question mark

Which loop is generally the simplest choice when you want to process every item in an array, one after another, without skipping or changing the order?

Select the correct answer

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Osio 2. Luku 5

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bookfor...of and forEach

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Imagine you have a grocery list and you want to check every single item to make sure nothing is missing. You would start at the top of the list and look at each item one by one until you reach the end. In programming, when you want to process every item in a list—like an array of fruits—JavaScript gives you two handy tools: the for...of loop and the forEach method. Both help you visit each element in an array, but they work in slightly different ways.


              
12345

            
const fruits = ["apple", "banana", "cherry"];

for (const fruit of fruits) {
  console.log("I need to buy " + fruit);
}
copy

              
12345

            
const fruits = ["apple", "banana", "cherry"];

fruits.forEach(function(fruit) {
  console.log("I need to buy " + fruit);
});
copy
question mark

Which loop is generally the simplest choice when you want to process every item in an array, one after another, without skipping or changing the order?

Select the correct answer

Oliko kaikki selvää?

Miten voimme parantaa sitä?

Kiitos palautteestasi!

Osio 2. Luku 5
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