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Editorial Team
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Asked: 2026-05-26T16:07:59+00:00

How to detect was input value changed or not on blur event? For example

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How to detect was input value changed or not on blur event?

For example every input field have default value (can be empty), after current input loses it’s focus we should determine, have the value been changed.

How to do this?

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1 Answer

  1. Editorial Team

    compare the value and the defaultValue 

    <input onblur="if(this.value!=this.defaultValue){alert('changed');}">
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