Testsigma Interview Question: Follow-up: JS DOM Manipulation Timing Issue If JavaScript code that manipulates the DOM is written before the DOM is fully loaded, how do we prevent errors?

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Follow-up: JS DOM Manipulation Timing Issue If JavaScript code that manipulates the DOM is written before the DOM is fully loaded, how do we prevent errors?

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Anonymous

26 Apr 2025

If JavaScript tries to manipulate DOM elements before they are loaded, it will throw an error because the elements don't exist yet. Use defer in the script tag:

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