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Coding and Engineering Concepts

Event Object

0.0 (0)

Passed automatically to handlers, showing what triggered it.
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Selecting Elements

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Use document.querySelector() or getElementById() to access elements.
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Form Event

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Handle submissions with submit or input events.
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DOMContentLoaded

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Runs code only after HTML has fully loaded.
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getElementById

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Targets one HTML element by its unique ID.
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Prevent Default

0.0 (0)

Use event.preventDefault() to stop form refreshes.
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getElementsByClassName

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Returns a list of elements with the same class name.
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Input Value

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Access input text using input.value.
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querySelector

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Works with any CSS-style selector for one match.
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