ronaldaug · April 26, 2023 10:22 · Apr 26, 2023 · Apr 26, 2023 · Jan 16, 2023 · Nov 24, 2021
diff --git a/useful-node.md b/useful-node.md
@@ -72,7 +72,7 @@ function copyFolderSync(from, to) {
 
 ```
 
-## Get Found word line
+## Found word's line number
 
 ```javascript
 

diff --git a/useful-node.md b/useful-node.md
@@ -70,4 +70,19 @@ function copyFolderSync(from, to) {
     });
 }
 
+```
+
+## Get Found word line
+
+```javascript
+
+const content = `Lorem ipsum dolor, sit amet consectetur adipisicing elit. \n Facilis deleniti abc ipsam quibusdam odit.`;
+
+const lineNumbers = (needle, haystack) => haystack
+    .split(/^/gm)
+    .map((v, i) => v.match(needle) ? i + 1 : 0)
+    .filter(a => a);
+
+console.log(lineNumbers('abc',content)) // [2]
+
 ```
diff --git a/useful-node.md b/useful-node.md
@@ -59,23 +59,15 @@ function readFileContents(dir) {
 
 ```javascript
 
-async function copyDir(src, dest) {
-    const doneCheck = new Promise(async(resolve,reject)=>{
-
-        await fs.mkdir(dest, { recursive: true });
-        let entries = await fs.readdir(src, { withFileTypes: true });
-
-        for (let entry of entries) {
-            let srcPath = path.join(src, entry.name);
-            let destPath = path.join(dest, entry.name);
-
-            entry.isDirectory() ?
-                await copyDir(srcPath, destPath) :
-                await fs.copyFile(srcPath, destPath);
+function copyFolderSync(from, to) {
+    fs.mkdirSync(to);
+    fs.readdirSync(from).forEach(element => {
+        if (fs.lstatSync(path.join(from, element)).isFile()) {
+            fs.copyFileSync(path.join(from, element), path.join(to, element));
+        } else {
+            copyFolderSync(path.join(from, element), path.join(to, element));
         }
-        resolve('done');
-    })
-    return doneCheck;
+    });
 }
 
 ```
diff --git a/useful-node.md b/useful-node.md
@@ -47,7 +47,7 @@ init();
 function readFileContents(dir) {
     const files = [];
     fs.readdirSync(dir).forEach(filename => {
-        const data = fs.readFileSync(dir+filename, 'utf-8')
+        const data = fs.readFileSync(dir+'/'+filename, 'utf-8')
         files.push(data)
     });
     return files;

diff --git a/copydir.md b/copydir.md
@@ -1,24 +0,0 @@
-Copy Directory 
-
-```javascript
-
-async function copyDir(src, dest) {
-    const doneCheck = new Promise(async(resolve,reject)=>{
-
-        await fs.mkdir(dest, { recursive: true });
-        let entries = await fs.readdir(src, { withFileTypes: true });
-
-        for (let entry of entries) {
-            let srcPath = path.join(src, entry.name);
-            let destPath = path.join(dest, entry.name);
-
-            entry.isDirectory() ?
-                await copyDir(srcPath, destPath) :
-                await fs.copyFile(srcPath, destPath);
-        }
-        resolve('done');
-    })
-    return doneCheck;
-}
-
-```

diff --git a/useful-node.md b/useful-node.md
@@ -0,0 +1,81 @@
+## Prompt to get the value
+
+```javascript
+
+const { stdin, stdout } = process;
+
+// Prompt function
+function prompt(question) {
+  return new Promise((resolve, reject) => {
+    stdin.resume();
+    stdout.write(question);
+
+    stdin.on('data', data => resolve(data.toString().trim()));
+    stdin.on('error', err => reject(err));
+  });
+}
+
+// Init
+async function init() {
+    try {
+
+      let value = await prompt('Please type something')
+
+      console.log(value)
+
+      stdin.pause();
+
+    } catch(error) {
+      console.log("There's an error!");
+      console.log(error);
+    }
+    process.exit();
+}
+
+init();
+
+```
+
+
+## Read File Content
+
+```javascript
+
+/**
+ * Read Files Content
+ */
+function readFileContents(dir) {
+    const files = [];
+    fs.readdirSync(dir).forEach(filename => {
+        const data = fs.readFileSync(dir+filename, 'utf-8')
+        files.push(data)
+    });
+    return files;
+}
+
+```
+
+## Copy Directory 
+
+```javascript
+
+async function copyDir(src, dest) {
+    const doneCheck = new Promise(async(resolve,reject)=>{
+
+        await fs.mkdir(dest, { recursive: true });
+        let entries = await fs.readdir(src, { withFileTypes: true });
+
+        for (let entry of entries) {
+            let srcPath = path.join(src, entry.name);
+            let destPath = path.join(dest, entry.name);
+
+            entry.isDirectory() ?
+                await copyDir(srcPath, destPath) :
+                await fs.copyFile(srcPath, destPath);
+        }
+        resolve('done');
+    })
+    return doneCheck;
+}
+
+```
diff --git a/copydir.md b/copydir.md
@@ -0,0 +1,24 @@
+Copy Directory 
+
+```javascript
+
+async function copyDir(src, dest) {
+    const doneCheck = new Promise(async(resolve,reject)=>{
+
+        await fs.mkdir(dest, { recursive: true });
+        let entries = await fs.readdir(src, { withFileTypes: true });
+
+        for (let entry of entries) {
+            let srcPath = path.join(src, entry.name);
+            let destPath = path.join(dest, entry.name);
+
+            entry.isDirectory() ?
+                await copyDir(srcPath, destPath) :
+                await fs.copyFile(srcPath, destPath);
+        }
+        resolve('done');
+    })
+    return doneCheck;
+}
+
+```