How to apply class based on positive and negative value using in Angular 4

Asked Dec 30 '17 at 08:21

Active Dec 30 '17 at 08:21

Viewed 875 times

I want to change class based on the value in my Angular 4 app.

My Code:

<td [ngClass]="{'green': crypto.percent_change_1h < 0, 'red': crypto.percent_change_1h > 0}">

It is not working as expected? why

I have gone through many links, I could not find solutions,

I know, it can be done using Javascript. It could be better it is possible from Angular itself.

asked Dec 30 '17 at 08:21

Aravin

Second link is from AngularJS. – Edric Dec 30 '17 at 08:23
1

Are your classes working? Can you check your developer tools to see if the class is applied? – Edric Dec 30 '17 at 08:24
no. nothing applied. – Aravin Dec 30 '17 at 08:54
can u pls log value of `crypto.percent_change_1h` and post it ? – Dhyey Dec 30 '17 at 09:04
@Dhyey, it is '0.89'. On inspect element `0.89%` – Aravin Dec 30 '17 at 09:19
so it's a string not a number, than u would need to parse it to float. You can log `typeof crypto.percent_change_1h` to verfiy if it's a string. – Dhyey Dec 30 '17 at 09:20

0 Answers0