---
title: "JavaScript loading techniques & Performance"
url: https://daily.dev/posts/javascript-loading-techniques-performance-qbksxlumz
source_url: https://dev.to/bharati21/javascript-loading-techniques-performance-56lp
type: article
source: "DEV"
author: "Bharati Subramanian"
published: 2021-07-21T07:16:14.472Z
updated: 2021-10-07T14:17:10.317Z
tags: ["javascript", "html"]
reading_time: 6
upvotes: 37
comments: 1
language: en
---

> ## Documentation Index
> Fetch the complete documentation index at: https://daily.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# JavaScript loading techniques & Performance

**[DEV](https://daily.dev/sources/devto)** · [@bharati21](https://daily.dev/bharati21) · 6 min read · 37 upvotes · 1 comments

## Summary

In this blog post, we will go through the techniques to include external script files to your HTML and look at how this can affect the performance. We will compare which technique is preferable and efficient over others in varying situations. This blog post assumes you are familiar with basic HTML, CSS and JavaScript syntax.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://dev.to/bharati21/javascript-loading-techniques-performance-56lp>

## Community discussion

Top comments from developers on daily.dev.

**@madhuhc** · 0 upvotes

> One of the best article about script tag

## Similar posts on daily.dev

- [Don’t just attend KubeCon \+ CloudNativeCon, Merge Forward your experience\!](https://daily.dev/posts/don-t-just-attend-kubecon-cloudnativecon-merge-forward-your-experience--l0rpp73x8) · CNCF · 0 upvotes · 0 comments
- [Announcing H2 2026 KCDs](https://daily.dev/posts/announcing-h2-2026-kcds-m96goajm1) · CNCF · 1 upvotes · 0 comments
- [Two months of Open Community Groups](https://daily.dev/posts/two-months-of-open-community-groups-asf52zhbs) · CNCF · 0 upvotes · 0 comments
- [CNCF Unveils Schedule for KubeCon \+ CloudNativeCon Europe 2026](https://daily.dev/posts/cncf-unveils-schedule-for-kubecon-cloudnativecon-europe-2026-ikhcoa5cb) · CNCF · 2 upvotes · 0 comments
- [CNCF Debuts KubeCon \+ CloudNativeCon Japan 2026 Schedule](https://daily.dev/posts/cncf-debuts-kubecon-cloudnativecon-japan-2026-schedule-xp5pyudub) · CNCF · 1 upvotes · 0 comments

---

Tags: [#javascript](https://daily.dev/tags/javascript), [#html](https://daily.dev/tags/html)

[View this post on daily.dev](https://daily.dev/posts/javascript-loading-techniques-performance-qbksxlumz)