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feat: add pattern programming 1
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‎Topic4/index.html

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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8" />
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<meta name="viewport" content="width=device-width, initial-scale=1.0" />
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<title>Document</title>
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</head>
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<body>
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<script src="./index.js"></script>
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</body>
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</html>

‎Topic4/index.js

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console.log("hello");
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console.log("world");
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// "hello world"
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process.stdout.write("hello ");
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process.stdout.write("world\n");
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// i want this prompt to be shown in my terminal. so for that we have to install the package called prompt-sync
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let prompt = require("prompt-sync")();
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let a = Number(prompt("Enter a number "));
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process.stdout.write(`${a}\n`);
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process.stdout.write("*");
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process.stdout.write("*");
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process.stdout.write("*");
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process.stdout.write("*");
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process.stdout.write("*\n");
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for (let i = 1; i <= a; i++) {
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process.stdout.write("*");
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}
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console.log();
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for (let i = 1; i <= a; i++) {
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process.stdout.write("*");
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}
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console.log();
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for (let i = 1; i <= a; i++) {
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process.stdout.write("*");
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}
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console.log();
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for (let i = 1; i <= a; i++) {
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process.stdout.write("*");
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}
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console.log();
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for (let i = 1; i <= a; i++) {
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process.stdout.write("*");
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}
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console.log();
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for (let i = 1; i <= a; i++) {
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for (let j = 1; j <= a; j++) {
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process.stdout.write("* ");
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}
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console.log();
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}
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// right angel triangel star pattern
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for (let i = 1; i <= 10; i++) {
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for (let j = 1; j <= i; j++) {
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process.stdout.write("* ");
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}
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console.log();
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}
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// right angle triangel number pattern
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for (let i = 1; i <= 5; i++) {
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for (let j = 1; j <= i; j++) {
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process.stdout.write(`${j}`);
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}
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console.log();
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}
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// right angel triangle alphabet pattern
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for (let i = 1; i <= 5; i++) {
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let ascii = 65;
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for (let j = 1; j <= i; j++) {
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process.stdout.write(String.fromCharCode(ascii));
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ascii++;
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}
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console.log();
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}
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// Inverted right angle triangle
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for (let i = 1; i <= 5; i++) {
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for (let j = 5; j >= i; j--) {
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process.stdout.write("* ");
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}
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console.log();
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}

‎node_modules/.package-lock.json

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‎node_modules/ansi-regex/index.js

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‎node_modules/ansi-regex/license

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‎node_modules/ansi-regex/package.json

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‎node_modules/ansi-regex/readme.md

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‎node_modules/prompt-sync/LICENSE

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