Overview

@each is a method (not a loop structure) that is often used to iterate over arrays or collections.
It’s a more functional and concise way of doing loops, often preferred for array manipulation.

It’s like saying:

“For each item in the collection, do something with it!”

Syntax (Generic Form)

@each(cards:card) {
    <i>Index @(_i): </i><b>@(card.name)</b>
}

How It Works

• The @each method iterates over each element in an array.

• It executes the provided function for each item in the collection, passing the item, index @(_i), and the entire array as parameters.

• Using @(_i) you can access the current item’s index, _i is built in.

Example (JavaScript)

const numbers = [1, 2, 3, 4, 5];
 
numbers.forEach(function(num) {
    console.log(num * 2); // Double each number
});

Output:

2
4
6
8
10

Example (Zare)

res.render("index", {items: [{name: "Soap", price: 20}, {name: "Rice", price: 50}, {name: "Oil", price: 100}]} );

serve (
    <ul>
        @each (items:item) {
            <li>@(item.name) - $@(item.price)</li>
        }
    </ul>
)

Output:

<ul>
    <li>soap - $20</li>
    <li>Rice - $50</li>
    <li>Oil - $100</li>
</ul>

Key Points

• @each cannot break or continue the loop early. If you need that.

• It’s a keyword, and it only works with arrays (or array-like objects).

• The block inside {…} is executed for each element in the collection.