Revise paste 06. Blog

function attachEvents() {
    let btnLoadPosts = document.getElementById("btnLoadPosts");
    let btnViewPost = document.getElementById("btnViewPost");
    let sel = document.getElementById("posts");
    let postTitleh = document.getElementById("post-title");
    let postBody = document.getElementById("post-body");
    let commentsUl = document.getElementById("post-comments");
 
    btnLoadPosts.addEventListener("click", loadPosts);
    btnViewPost.addEventListener("click", viewPost);

//get all coments 
        fetch("http://localhost:3030/jsonstore/blog/comments", requestOptions)
            .then(response => response.json())
            .then(result => renderComments(result, neededId))
            .catch(error => console.log('error', error)); 
    }
 
    function getPostDetails(data, neededId) {
        //get needed post
        let arr = Object.entries(data);
        let post = arr.find(a => a[0] == neededId); 
        postTitleh.textContent = "";
        postTitleh.textContent = post[1].title;
        postBody.textContent = post[1].body;
    }
  
    function renderComments(data, neededId) { 
        commentsUl.innerHTML = "";
        let arrData = Object.entries(data);    
        //filter comments
        let relevantComments = arrData.filter(a => a[1].postId == neededId);
        relevantComments.forEach(c => {
            let comLi = document.createElement("li");
            comLi.id = c.id;
            comLi.textContent = c[1].text;
            commentsUl.appendChild(comLi)
        }) 
    }
}
 
 
attachEvents();