Server My Nightmare with Magento Part I This is a recent incident that happened on me. It was one of my worst nightmare dealing with the mess. You are currently reading Part 1.
Server SSH into Private Server via Bastion Host (jumper) using PuTTY This post shows you how to establish connection to your private server via bastion host (jumper or jump server) using Tunnel in PuTTY.
Salesforce Salesforce Sharing and Visibility Designer Exam Preparation: Programmatic Sharing Programmatic Sharing weighs 17% of total score in Sharing and Visibility Designer exam, which covers sharing with Apex, security risk in programmatic customizations, CRUD/FLS permission enforcement and etc.
Salesforce Salesforce Sharing and Visibility Designer Exam Preparation: Performance and Scalability Performance and Scalability only makes up 7% of total score in Sharing and Visibility Designer exam. Even though it might be 4 questions roughly, who knows that might be what you need to pass the exam? So better be prepared as well!
Salesforce Salesforce Sharing and Visibility Designer Exam Preparation: Declarative Sharing Declarative Sharing consists of 76% of total score in Salesforce Sharing and Visibility Designer exam. This section covers mostly about declarative sharing and security and it is the greatest portion of this exam!
Salesforce Import data with Unicode characters to Salesforce via Data Loader Are you having issues uploading data that contains Unicode characters into Salesforce via Data Loader? This post will help you with this issue, so please read on!
Server Setup Netdata for your Apache/Nginx Server This post will guide you to set up Netdata on your server. If you are also running Apache/Nginx server on Amazon EC2 Instance, then this tutorial might be perfect for you!
Salesforce Salesforce Advanced File Upload Component Salesforce provides standard file upload component for us, but it is not sufficient. For example, we can't view the files that we uploaded or delete the files as needed. Today, we are going to build our own advanced file upload component to solve this problem.
Algorithm 2Sum, 3Sum, 4Sum ... x-Sum and their variants x-Sums are very famous interview question which can be solved using two pointers method. Today, we are going to take a deep dive on this topic. Let's do it!
Personal Huel, is it worth it? I have tried Huel for over a month now and here's my two cents: go for it if you are seriously thinking about getting a viable meal replacement solution. Read on to find out more!
Algorithm Deep copy a Linked List with random pointers If I ask you to deep copy a Linked List, it will be very simple but if the list contains random pointer, how would you do? In this post, I am providing both w/ and w/o hashmap solution. Read on to find out!
Algorithm Reverse nodes in k-group in Linked List We have learned about reversing the whole Linked List, reversing nodes from m to n in a Linked List, and now, we need to reverse nodes in k-group. Though the difficulty is set to hard, but the concept still applies. Read on to master it!
Algorithm Sorting a Linked List Can you sort a Linked List in O(nlogn) time without allocating new space? Sorting list is very similar to sorting array, you use divide and conquer method to sort and merge the lists. Read on to find out more!
Algorithm Can you reorder a Linked List? We all know how to find the middle node of a linked list, or reverse a linked list, or even merge two lists together. In this question, you will be doing all these at once! Read on to find out how!
Algorithm Can you rotate a Linked List by k places? Given a linked list, can you rotate the list by k places? The challenge is to reconnect the rotated list with the unrotated list. Read on to find out how!
Algorithm Find the cycle in a Linked List Can you find out if a linked list has cycle in it? If so, can you find out the node where the cycle begins? Read on to find out!
Algorithm Find the intersection of two Linked Lists If I am giving you two linked lists, will you be able to find where their intersection node is? Read on if you are interested!
Algorithm Reverse a Linked List Reverse a Linked List is the one of the most common operations on Linked Lists. Knowing how to reverse a linked list can almost solve 80% of linked list problems. So let's master it!
Algorithm Design a Binary Search Tree Iterator Design a Binary Search Tree Iterator which allows us to retrieve the next smallest number and check if there exists the next smallest number in the BST.
Algorithm Course Schedule Course schedule is one of the most famous interview questions of all time. The idea is to use topological sorting to find out if you can finish all courses.
Algorithm Topological sorting, do you really know it? Toplogical sorting is a very important topic in graph. One must know how toplogical sorting works before they can claim that they know how to do graph problems. New to this and ready? Let's go!
Salesforce How to show Local Time for Account? Are you still looking for solution to display local time for the account? If yes, you have come to the right place! I am sure you will get a lot from this post, so please read on!
Salesforce Salesforce Advanced Flow Footer Navigation Interested to implement a more advanced footer for your flow screen? This post might help you with designing your own custom flow footer.
Algorithm Lowest Common Ancestor of Binary Tree Lowest Common Ancestor (LCA) is a very popular question in an interview. Not only you need to understand what LCA is, you will also need to know its application as well.
Algorithm Identify a Balanced Binary Tree Given a binary tree, can you determine whether it is a height-balanced binary tree? What methods can we apply on this question? Read on to find out!