Delete node code example

Example 1: how to uninstall node.JS

How to remove/uninstall Node.js from Windows:
1. Run npm cache clean --force
2. Uninstall from Programs & Features with the uninstaller.
3. Reboot (or you probably can get away with killing all node-related processes from Task Manager).
4. Look for these folders and remove them (and their contents) if any still exist. Depending on the version you installed, UAC settings, and CPU architecture, these may or may not exist:
    C:\Program Files (x86)\Nodejs
    C:\Program Files\Nodejs
    C:\Users\{User}\AppData\Roaming\npm (or %appdata%\npm)
    C:\Users\{User}\AppData\Roaming\npm-cache (or %appdata%\npm-cache)
    C:\Users\{User}\.npmrc (and possibly check for that without the . prefix too)
    C:\Users\{User}\AppData\Local\Temp\npm-*
5. Check your %PATH% environment variable to ensure no references to Nodejs or npm exist.
6. If it's still not uninstalled, type where node at the command prompt and you'll see where it resides -- delete that (and probably the parent directory) too.
7. Reboot, for good measure.

Example 2: uninstall node

In IOS terminal:
brew uninstall node

Use sudo if ask for permitions

Example 3: how to remove a node from a linked list in c

typedef struct node{
    int value; //this is the value the node stores
    struct node *next; //this is the node the current node points to. this is how the nodes link
}node;

node *rmvNode(node *head, int index){
    node *tmp = head;
    node *rmv;
    int count = 0;

    //base case for if the user enters a value greater then or equal to the length of the head
    //base case for if the user enters a value with a list of length 1. because in this library a list MUST contain one value minimum
    if(index >= len(head) || len(head) == 1){
        return NULL;
    }
  
    //if you want to remove the first value
    if(index == 0){
        rmv = head; //stores the head at this given moment in time
        head = tmp->next; //this jumps the position of the head making sure that the beginning is no longer part of the head
        free(rmv); //this frees the memory given to the initial head
        return head;
    }

    //if you want to remove index position 1
    if(index == 1){
        rmv = head->next;
        head->next = tmp->next->next;
        free(rmv);
        return head;
    }

    //if you want to remove the last value
    if(index == -1){
        
        while(count < len(head)-2){ //we do -2 because we want to access the node before the last one
            tmp = tmp->next;
            count += 1;
        }
        rmv = tmp->next;
        tmp->next = NULL;
        free(rmv);
        return head;
    }

    //remove anything else
    while(count < index-1){
        tmp = tmp->next;
        count += 1;
    }
    rmv = tmp->next;
    tmp->next = tmp->next->next;
    free(rmv);
    return head;

}

Example 4: delete node in javascript

<ul id="shoppinglist">
        <li class="complete"> Apple [<a href="#">Delete</a>] </li>
        <li class="complete"> banana [<a href="#">Delete</a>]</li>
        <li class="complete"> mango [<a href="#">Delete</a>]</li>
        <li class="complete"> guava [<a href="#">Delete</a>]</li>
    </ul>
            

// Set up event listeners to call itemDone() on click
document.getElementById("shoppinglist").addEventListener('click', function(e) {
    deleteNode(e);
}, false);


function deleteNode(e) {
    var target, elParent, elGrandParent;

    //Remove Item From the list
    target = e.target;
    // alert(e.target.value);
    elParent = target.parentNode;
    elGrandParent = elParent.parentNode;

    alert(target.parentNode.innerHTML + " Removed From Cart")
    elGrandParent.removeChild(elParent);

    //prevent the link from taking you elsewhere
    e.preventDefault();
}