Filtering A Mapped Object Based On React Router

I'm trying to filter my map array by the :reviewId in my router(v4) url the code works if I set it manually to the routeId parameter {review.items.filter(item => item.id === 2)`

Solution 1:

I think, this is a type mismatch issue, this.props.match.params.reviewId will return a string value, and id is an integer value.

So instead of === use ==.

Like this:

item.id == this.props.match.params.reviewId

Reason:=== checks the value and type both.

To verify this use:

console.log(typeOf(this.props.match.params.reviewId), typeOf(item.id))

inside filter and check the result.

Try this:

render() {
    const revs = reviews.map(review =><div><divkey={review.id} />
        {
          review.items.filter(item => {
              console.log(typeOf(this.props.match.params.reviewId), typeOf(item.id)) 
              return item.id == this.props.match.params.reviewId; 
          })
          .map(item =>
            <divclassName="cell"><divkey={item.id}><imgsrc={item.img}alt={item.name} /><div>{item.text}</div></div></div>
        )}
      </div>
)