types typescript inside for loop local loop variable not respecting type

Question

this.venuelist has type Venue

venuelist:Venue[] = [];

Type Venue has the property neighborhood on it.

I have the following for loop

for(let venue in this.venuelist){
      let remove = false;
      if(this.filters.neighborhood != ''){
        if(venue.neighborhood != this.filters.neighborhood){
          remove = true;
        }
      }
    }

calling venue.neighborhood called in the second `if statement` is not working

the error is: Property 'neighborhood' does not exist on type 'string.

for why? Why must it do this. Why can't it play nice? How do I make it place nice?

Haifeng Zhang · Accepted Answer · 2017-11-29 20:42:51Z

1

for(let venue in this.venuelist){}

for...in doesn't iterate over the array items, it iterates over the keys of the object passed in. You should use for...of

answered Nov 29, 2017 at 20:42

Haifeng Zhang

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Amit Wagner · Accepted Answer · 2017-11-29 20:44:15Z

0

for(let venue in this.venuelist){
      let remove = false;
      if(this.filters.neighborhood != ''){
        if(this.venuelist[venue].neighborhood != this.filters.neighborhood){
          remove = true;
        }
      }
    }

answered Nov 29, 2017 at 20:44

Amit Wagner

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