The utilization of the .find method does not yield the desired object when parsing JSON data

Currently, I am utilizing Vue.js 3 for my project, however, I do not believe this is the root cause of the issue I am facing. The problem lies in my attempt to access a JSON array of post objects stored in localStorage. After parsing the array and extracting the id from the route, I use the .find method to search for the corresponding post object. Unfortunately, the search operation seems to be returning undefined.

Within the Post.vue file

    created() {
        this.postId = this.$route.params.id;
        console.log("****** POST ID *******");
        console.log(this.postId);

        var posts = JSON.parse(localStorage.getItem("posts"));
        console.log("****** POSTS ARRAY *******");
        console.log(posts);

        this.post = posts.find(post => post.id === this.postId);
        console.log("****** POST *******");
        console.log(this.post);
        
    }

Check out the Console Log for more details.

Answer №1

It appears that the type of this.postId is a string, while the type of each object's id in the posts array is a number. In this case, you have the option to use == instead of ===, or change the type of this.postId to a number by utilizing parseInt.

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