How can I set the value of an <input> to false ? true works

Question

Editorial Team

Asked: June 13, 20262026-06-13T00:23:06+00:00 2026-06-13T00:23:06+00:00

How can I set the value of an <input> to false? true works fine.

Model:

function Model(){
   self = this;
   self.Test = ko.observable(false);
};

HTML:

<input type="text" data-bind="value:Test"/>

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Editorial Team · Answer 1 · 2026-06-13T00:23:07+00:00

Editorial Team

An <input type="text"> expects a text value, and you’re supplying a boolean.

The boolean value false is considering “falsey” when passed in the value attribute, which is the same as supplying no value, so it appears blank.

It works for true because you end up with true.toString()

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