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rated 0 times [  200] [ 7]  / answers: 1 / hits: 52055  / 7 Years ago, fri, february 3, 2017, 12:00:00

I have an input field and a button. It must be disable at start. When the input no blank is, the button is enable.

I use a ngModel to take the value of the input and a function (change) to start a function each time the input is changed.

Now I do a little if in the change function.

if(input !== ''){
//enable the button
//disable the button

Have you any idea how to achieve that?


More From » angular


Just have a boolean variable in class:


Change function

if(input !== ''){
//enable the button
//disable the button

In Html:

<button ion-button [disabled]=!isenabled></button>

For changing classes:

<button ion-button [ngClass]={class:isenabled,class2:!isenabled}></button>

Check here

[#59084] Wednesday, February 1, 2017, 7 Years  [reply] [flag answer]
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