typescript 离子条件类css
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Ionic conditional class css
提问by Richard
I am using Ionic3, and have:
我正在使用 Ionic3，并且有：
<span class="char-left">{{REVIEW_MAX_LENGTH-ratingModel.review.length}} characters left</span>
I would like to conditionally change the classvalue when another value is populated, i.e when ratingForm.controls.review.length > 0change the values to class="char-left-error".
我想class在填充另一个值时有条件地更改该值，即将ratingForm.controls.review.length > 0值更改为class="char-left-error".
I did look at ng-class, but cannot seem to get it to work.
我确实看过ng-class，但似乎无法让它发挥作用。
Any help appreciated.
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