css
/* Center a div with CSS Grid - the modern way */
.center-me {
  display: grid;
  place-items: center;
}

<p class="typewriter">Hello, I'm typing...</p>

.typewriter {
  overflow: hidden;
  border-right: 2px solid;
  white-space: nowrap;
  animation: typing 3s steps(20), blink 0.5s step-end infinite;
}
@keyframes typing {
  from { width: 0 }
  to { width: 100% }
}
@keyframes blink {
  50% { border-color: transparent }
}

function debounce(func, delay) {
    let timeout;
    return function() {
        clearTimeout(timeout);
        timeout = setTimeout(() => func.apply(this, arguments), delay);
    };
}

// Usage example:
const search = debounce((query) => {
    console.log(`Searching for: ${query}`);
    // Your API call here
}, 500);

const test = debounce((msg) => console.log(msg), 1000);
test("Hello"); test("Hello"); test("Hello");

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

contract HelloWorld {
    string public greeting;

    constructor() {
        greeting = "Hello, Blockchain World!";
    }

    function updateGreeting(string memory _newGreeting) public {
        greeting = _newGreeting;
    }
}