Iterating with Array.forEach()

Snippet

Iterating with Array.forEach()

The forEach() method executes a provided function once for each array element. Unlike map, it doesn't return a new array; it is used for side effects, like logging or updating an external variable during page rendering.

snippet.js
javascript
const pages = ["Home", "About", "Contact"];
 
pages.forEach(function(page) {
  console.log("Loading page: " + page);
});

nextjs

Breakdown

pages.forEach(function(page) {

Starts a loop that visits every item in the 'pages' array one by one.

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Iterating with Array.forEach()

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