How to get the title of HTML page with JavaScript?
To fetch the page title in JavaScript, use document.title
.
A straightforward solution, compatible across all browsers.
Digging deeper into the topic, let's take a look at how to manage dynamic updates, cross-browser compatibility, and performance optimization when working with the HTML page title.
Tackling dynamic titles
When the webpage is dynamic, the title may change to reflect the page content, user interaction, or server-side updates. JavaScript provides built-in methods to react to these changes:
If the title changes due to AJAX or React updates, you need to re-fetch the title:
Accessing the title tag
In certain scenarios, you might need to work with the <title>
tag directly, particularly in densely populated <head>
sections. Here's how:
Alternatives include document.getElementsByTagName('title')[0]
or the getElementById('id')
method if you assigned an id
to the title tag. Remember that robust error handling is crucial to prevent script failures.
Integrating title management in your application
Title management is often a crucial part of the application architecture. The page title is often used in breadcrumbs, hierarchy orders, or SEO optimizations. The below script shows how to synchronize the page title with an h1
tag:
This maintains uniformity between the browser's title bar and the page content.
Cross-browser compatibility
Even though document.title
is natively supported by all browsers, some glitches may arise. Always verify the uniformity of your implementation across multiple browsers.
For performance, if the title changes frequently, consider debouncing the title update function to prevent janky experiences.
Advanced title customization techniques
Rethinking standard retrieval and updates, you can explore advanced techniques like binding the title to the data model in frameworks like Vue.js or Angular, enabling reactive title updates:
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