arrays - Get key names if values is true -

i need keys has value true, , return me key name.

question: need use underscore or can not in simpler way?

{"desenvolvimento": true, "artigos": false, "design": true}

resolved: more simple.

<span ng-repeat="(key, value) in item.tax.categorias" ng-if="value">{{key}}</span>

simply use in loop , test prop!

for(var prop in obj){  if(obj[prop] === true){    // true  } }

i encourage read through mdn ways can interact objects , arrays

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