add: Add JS Loop

JsLoops/do-while.md

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+# JavaScript Do-While Loop
+
+The `do-while` loop in JavaScript is a control flow statement that repeatedly executes a block of code as long as a specified condition is true. The key difference between a `do-while` loop and other loop structures is that it always executes the block of code at least once before checking the condition.
+
+## Syntax
+
+```javascript
+do {
+  // code block to be executed
+} while (condition);
+```
+## Use Cases
+1) When you need to execute a block of code at least once, regardless of the initial condition.<br/>
+2) When the loop's condition depends on the result of the code block's execution.
+
+### Example
+```javascript
+let count = 0;
+
+do {
+  console.log(`Count: ${count}`);
+  count++;
+} while (count < 5);
+```

JsLoops/for-each.md

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+# JavaScript forEach
+
+## Description
+The `forEach` method is used to iterate over elements in an array and execute a provided function once for each array element.
+
+## Syntax
+```javascript
+array.forEach(callback(currentValue [, index [, array]]) {
+  // Your code here
+}, thisArg);
+```
+### Parameters
+```callback:``` Function to execute for each element. <br/>
+```currentValue:``` The current element being processed in the array. <br/>
+```index (optional):``` The index of the current element being processed in the array. <br/>
+```array (optional):``` The array forEach was called upon. <br/>
+```thisArg (optional):``` Object to use as this when executing the callback. <br/>
+
+## Example
+```javascript
+const numbers = [1, 2, 3, 4, 5];
+
+numbers.forEach(function (num, index) {
+  console.log(`Element at index ${index}: ${num}`);
+});
+```
+Output :
+```
+Element at index 0: 1
+Element at index 1: 2
+Element at index 2: 3
+Element at index 3: 4
+Element at index 4: 5
+```

JsLoops/for-in-loop.md

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+# JavaScript For...In Loop
+
+The `for...in` loop in JavaScript is used to iterate over the properties of an object. It is particularly useful when you want to loop through the keys (property names) of an object.
+
+## Syntax
+
+```javascript
+for (variable in object) {
+  // code to be executed
+}
+```
+```variable:``` A variable that will be assigned the property name on each iteration. <br/>
+```object:``` The object whose enumerable properties are iterated.
+## Note
+The for...in loop iterates over enumerable properties, including inherited ones. <br/>
+It is recommended to use caution when using for...in with arrays, as it may iterate over array methods and not just array elements.
+
+### Example
+```javascript
+// Sample object
+const car = {
+  make: 'Toyota',
+  model: 'Camry',
+  year: 2022
+};
+
+// Using for...in loop to iterate over object properties
+for (let key in car) {
+  console.log(key + ': ' + car[key]);
+}
+
+```

JsLoops/for-loop.md

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+# JavaScript For Loop 
+
+## Description
+
+The JavaScript `for` loop is a control flow statement that allows you to execute a block of code repeatedly. It consists of three optional expressions: initialization, condition, and iteration. The loop continues to execute as long as the condition is true. Here's the basic syntax:
+
+```javascript
+for (initialization; condition; iteration) {
+  // code to be executed
+}
+```
+## Features
+Initialization: Declare and initialize a loop variable. <br/>
+Condition: Specify the condition to continue the loop. <br/>
+Iteration: Define how the loop variable changes after each iteration. <br/>
+## Example
+  ### Simple Numeric Loop
+  ```javascript
+for (let i = 0; i < 5; i++) {
+  console.log(i);
+}
+
+```
+This will output:
+```
+0
+1
+2
+3
+4
+```
+### Looping Through an Array
+```javascript
+const fruits = ['apple', 'orange', 'banana'];
+
+for (let i = 0; i < fruits.length; i++) {
+  console.log(fruits[i]);
+}
+```
+This will output:
+```
+apple
+orange
+banana
+```
+### Backward Loop
+```javascript
+for (let i = 5; i > 0; i--) {
+  console.log(i);
+}
+```
+This will output:
+```
+5
+4
+3
+2
+1
+```

JsLoops/for-of-loop.md

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+# JavaScript for...of Loop README
+
+## Description
+
+The `for...of` loop in JavaScript is used to iterate over iterable objects, such as arrays, strings, maps, sets, and more. It provides a concise and readable syntax for iterating through the elements of a collection.
+
+## Syntax
+
+```javascript
+for (variable of iterable) {
+  // code to be executed
+}
+```
+``` variable: ``` A variable to represent the current element of the iterable in each iteration. <br/>
+``` iterable: ``` The object or array-like structure to be iterated over.
+### Example
+#### Iterating over an Array
+```javascript
+const numbers = [1, 2, 3, 4, 5];
+
+for (const number of numbers) {
+  console.log(number);
+}
+
+```

JsLoops/while-loop.md

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+# JavaScript While Loop
+
+The JavaScript `while` loop is used to repeatedly execute a block of code as long as a specified condition is true. It is one of the fundamental control flow structures in JavaScript. <br/>
+The while loop provides a flexible way to repeat a block of code based on a condition. 
+
+## Syntax
+
+```javascript
+while (condition) {
+  // code to be executed
+}
+```
+### Example
+```javascript
+let count = 0;
+
+while (count < 5) {
+  console.log(`Current count: ${count}`);
+  count++;
+}
+
+console.log("Loop finished!");
+```
+## Infinite Loop
+when using while loops to avoid creating infinite loops. An infinite loop occurs when the condition always evaluates to true, leading to continuous execution of the loop.
+```javascript
+// Caution: Infinite Loop
+while (true) {
+  console.log("This is an infinite loop!");
+}
+```