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Why Is `createElement` a Better Choice Than `innerHTML` for Dynamic HTML Modifications?

Linda Hamilton
Release: 2024-11-06 11:24:03
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Why Is `createElement` a Better Choice Than `innerHTML` for Dynamic HTML Modifications?

createElement's Superiority over innerHTML

While it may seem that innerHTML offers improved performance and code clarity, this article delves into the advantages of adopting createElement instead.

Preserved DOM Element References

Unlike innerHTML, createElement retains existing references to DOM elements during element additions. This prevents a complete re-parsing of all DOM nodes, ensuring that references made prior to the modification remain valid.

Event Handler Preservation

createElement safeguards event handlers associated with DOM elements. Modifying innerHTML disconnects event listeners, requiring manual re-attachment. In contrast, createElement maintains these connections, eliminating the need for additional event registration.

Optimization for Multiple Additions

For extensive element additions, createElement surpasses innerHTML in efficiency. Continuously resetting innerHTML is inefficient; instead, building up an HTML string and assigning it to innerHTML once complete is a more efficient approach. However, string manipulation can be time-consuming, making createElement a competitive option.

Simplified Usage

The custom function "make" is provided to streamline createElement usage. It accepts an array representing the desired HTML structure and generates the corresponding DOM elements. This function eases the creation of complex HTML structures.

In conclusion, while innerHTML may appear simpler, createElement offers distinct advantages, including reference preservation, event handler retention, and efficient multiple additions. Taking these factors into consideration, createElement emerges as a robust and efficient solution for dynamic HTML modifications.

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