Events:
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1) onclick:
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==> can allowed to perform some action/actions after the click
2) onload:
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==> can allowed to perform some action/actions after the loading of the page or image.
3) onkeyup:
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==> help to perform the actions while releasing the key
4) onblur:
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==> actions can be performed when the element in blur state.
Changing/applying the color to the text in run-time/dynamically:
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Document
Welcome To Ashok IT
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Dark theme to light theme:
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Document