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Asked: 2026-05-15T06:34:58+00:00

how to find whether a value of variable is changed or not in javascript

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how to find whether a value of variable is changed or not in javascript .

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  1. Editorial Team

    Ehm?

    var testVariable = 10;
var oldVar = testVariable;

...
if (oldVar != testVariable)
alert("testVariable has changed!");

    And no, there is no magical “var.hasChanged()” nor “var.modifyDate()” in Javascript unless you code it yourself.

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