How to disabling and enabling a html input button

Question

let's say I have a button like 

<input id="button" type="button" value="+" style="background-color:blue" onclick="me();"/>

how can I disable and enable it when I want? I have tried (disabled="disable") but enabling it back is a problem. I tried setting it back to false but that didn't enable it.

Answer 1

disabled option is true or false, to disable button you add disabled attribute to enable you remove disabled attribute

```html

<!-- Disabled -->

<input id="button" type="button" value="+" style="background-color:blue" onclick="me();" disabled/>

<!-- Enabled -->

<input id="button" type="button" value="+" style="background-color:blue" onclick="me();"/>

```

Answer 2

disabled option is true or false, to disable button you add disabled attribute to enable you remove disabled attribute

<!-- Disabled -->

<input id="button" type="button" value="+" style="background-color:blue" onclick="me();" disabled/>

<!-- Enabled -->

<input id="button" type="button" value="+" style="background-color:blue" onclick="me();"/>