javascript - Remove href attribute if value is null in angularjs - Stack Overflow

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I am trying to apply a condition to href or ng-href.

The condition is if email !== null

My code looks like this:

<a ng-attr-href="{{email !== null}}" href="mailto:{{email | lowercase}}">{{email | lowercase | nullValue}}</a>

This is evaluating to either href="true" or href="false".

This seems close to working, but I still get the href attribute being there if the value is null:

ng-attr-href="mailto:{{email !== null ? email: email | lowercase}}"

How do I remove the href entirely if the value from the data is null? Is it possible to wrap the entire condition around the html href attribute?

I am trying to apply a condition to href or ng-href.

The condition is if email !== null

My code looks like this:

<a ng-attr-href="{{email !== null}}" href="mailto:{{email | lowercase}}">{{email | lowercase | nullValue}}</a>

This is evaluating to either href="true" or href="false".

This seems close to working, but I still get the href attribute being there if the value is null:

ng-attr-href="mailto:{{email !== null ? email: email | lowercase}}"

How do I remove the href entirely if the value from the data is null? Is it possible to wrap the entire condition around the html href attribute?

• javascript
• angularjs
• attributes

Share Improve this question Follow asked Sep 24, 2015 at 11:35 lharbylharby 3,27766 gold badges2626 silver badges6565 bronze badges

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2 Answers 2

Sorted by: Reset to default 4

There are several ways of solving your problem. I prefer this:

<a ng-if="email !== null" href="mailto:{{email | lowercase}}">{{email | lowercase | nullValue}}</a>
<a ng-if="email == null">{{email | lowercase | nullValue}}</a>

You can easily wrap this into a directive if you need more plex conditions or attribute toggles.

You can also use something similar to your ng-attr-href as before but instead with only ng-href :

<a ng-href="{{email ? 'mailto:'+(email | lowercase) : ''}}">
{{email | lowercase | nullValue}}
</a>

While this would always create the ng-href attribute in the anchor tag, without an email it would be empty and would not create the href attribute. The end results would look like the following:

<a ng-href="mailto:tests" href="mailto:tests">tests</a>
<a ng-href></a>

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