Spring Certification Exam Tutorial is a video series course, in which I am going through Spring Certification Exam Study guide published by Pivotal. For each exam question I am providing detailed explanation followed by good code examples for you to get deep understanding of the topic. Spring Certification Exam Tutorial will give you all knowledge and skills required to pass Spring Certification Exam.
Simple game logic and random result generation. Phase 2: Interactive Components & Animations (21–40)
: For managing state, handling drag-and-drop events, coordinating asynchronous chunking, and managing network sockets. Step 1: Crafting the Modern CSS3 & HTML5 Interface
The journey from building a simple counter app or a background image scroll effect to creating a fully functional, secure, large‑file transfer system is shorter than you think. Both rely on the same core technologies: for structure, CSS3 for presentation, and vanilla JavaScript for behavior.
[Sender Browser] <--- Signaling Server (Metadata Only) ---> [Receiver Browser] [Sender Browser] ==============[ Secure WebRTC Data Channel ]==============> [Receiver Browser] Simple game logic and random result generation
String manipulation and random number generation for security. Password Strength Indicator: Real-time regex validation.
You have 60 projects under your belt. Now, you need to send a 10 GB video file to a client. Email fails. Cloud storage has size limits and privacy concerns. What do you do?
We use CSS3 Flexbox and transitions for a smooth user experience. Both rely on the same core technologies: for
Use a element or a custom div that updates its width via JavaScript as the upload proceeds. 2. Handling Large Files with Vanilla JS
async function decryptChunk(packedArrayBuffer, cryptoKey) const dataView = new Uint8Array(packedArrayBuffer); // Extract the 12-byte IV header const iv = dataView.slice(0, 12); // Extract the pure ciphertext remaining const ciphertext = dataView.slice(12); try const decryptedRaw = await window.crypto.subtle.decrypt( name: "AES-GCM", iv: iv , cryptoKey, ciphertext.buffer ); return decryptedRaw; // returns standard ArrayBuffer clear text catch (err) console.error("Decryption failed. Invalid Key Integrity Check.", err); throw err; Use code with caution. Free Dynamic Storage via Streams API
<!-- index.html --> <input type="file" id="fileInput" /> <button id="sendBtn">Send File</button> <script src="webrtc.js"></script> // webrtc.js - Simplified core logic const peerConnection = new RTCPeerConnection(); const dataChannel = peerConnection.createDataChannel("fileTransfer"); You have 60 projects under your belt
button background: linear-gradient(95deg, #0f2b3d, #0f172a); border: 1px solid #2dd4bf; color: #cffafe; font-weight: 600; cursor: pointer; margin-top: 0.6rem;
button:disabled background: #ccc; cursor: not-allowed;
Speed: 0 MB/s
const encryptedChunks = []; const ivs = []; let processed = 0;
The "60 HTML CSS JS projects" curriculum is a popular modern web development course (often found on Udemy ) designed to build a professional portfolio using , CSS3 , and Vanilla JavaScript .
Simple game logic and random result generation. Phase 2: Interactive Components & Animations (21–40)
: For managing state, handling drag-and-drop events, coordinating asynchronous chunking, and managing network sockets. Step 1: Crafting the Modern CSS3 & HTML5 Interface
The journey from building a simple counter app or a background image scroll effect to creating a fully functional, secure, large‑file transfer system is shorter than you think. Both rely on the same core technologies: for structure, CSS3 for presentation, and vanilla JavaScript for behavior.
[Sender Browser] <--- Signaling Server (Metadata Only) ---> [Receiver Browser] [Sender Browser] ==============[ Secure WebRTC Data Channel ]==============> [Receiver Browser]
String manipulation and random number generation for security. Password Strength Indicator: Real-time regex validation.
You have 60 projects under your belt. Now, you need to send a 10 GB video file to a client. Email fails. Cloud storage has size limits and privacy concerns. What do you do?
We use CSS3 Flexbox and transitions for a smooth user experience.
Use a element or a custom div that updates its width via JavaScript as the upload proceeds. 2. Handling Large Files with Vanilla JS
async function decryptChunk(packedArrayBuffer, cryptoKey) const dataView = new Uint8Array(packedArrayBuffer); // Extract the 12-byte IV header const iv = dataView.slice(0, 12); // Extract the pure ciphertext remaining const ciphertext = dataView.slice(12); try const decryptedRaw = await window.crypto.subtle.decrypt( name: "AES-GCM", iv: iv , cryptoKey, ciphertext.buffer ); return decryptedRaw; // returns standard ArrayBuffer clear text catch (err) console.error("Decryption failed. Invalid Key Integrity Check.", err); throw err; Use code with caution. Free Dynamic Storage via Streams API
<!-- index.html --> <input type="file" id="fileInput" /> <button id="sendBtn">Send File</button> <script src="webrtc.js"></script> // webrtc.js - Simplified core logic const peerConnection = new RTCPeerConnection(); const dataChannel = peerConnection.createDataChannel("fileTransfer");
button background: linear-gradient(95deg, #0f2b3d, #0f172a); border: 1px solid #2dd4bf; color: #cffafe; font-weight: 600; cursor: pointer; margin-top: 0.6rem;
button:disabled background: #ccc; cursor: not-allowed;
Speed: 0 MB/s
const encryptedChunks = []; const ivs = []; let processed = 0;
The "60 HTML CSS JS projects" curriculum is a popular modern web development course (often found on Udemy ) designed to build a professional portfolio using , CSS3 , and Vanilla JavaScript .