how can i get the value in a map by key in angular js

Question

I am a newer in angular. I am trying to learn to use angular js. I have a problem here. I have a map with name "nameMap" and its key->value following

    {
    1:su,
    2:mo,
    3:neptune
    }

what I want is when I get a key "key" such as "1", then display its mapped value "su" in page.

{{nameMap | key}}

I know I can do it if I achieve a filter myself. But I think this usage is so common that angular may do it with little code。 anyone who can help me ?

adiga · Accepted Answer · 2017-11-04 18:04:11Z

15

You can just use {{nameMap[key]}}

edited Nov 4, 2017 at 18:04

adiga

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answered Jul 12, 2013 at 14:43

rooftop

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2 Comments

Artan Over a year ago

I use Angular 2 and this didn't work. The answer from Mark worked for me.

djangojazz Over a year ago

That's doesn't work for types of Map<number, boolean> in Angular2+

adiga · Accepted Answer · 2017-11-04 18:05:24Z

13

The correct answer would be to use nameMap.get(key) as of Angular 2.

edited Nov 4, 2017 at 18:05

adiga

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answered Nov 4, 2017 at 17:46

Mark

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