block scoped in js

ByAnurag batra August 6, 2022June 30, 2022

The area of the code which is within {curley brackets} is called a block
if (true) {  ///block start 
  var x = 2;
  let y = 2;
}  // block end

Here is what the above code is Doing:
1. The if statement is checking if the condition is true.
2. If the condition is true, then the code within the block is executed.
3. The code within the block is executed.
4. The code within the block is finished executing.
5. The block is finished executing.
6. The if statement is finished executing.

Javascript Examples

how to update node in terminal

ByAnurag batra August 4, 2022June 30, 2022

//First, clear the npm cache: npm cache clean -f //Install n, Node’s version manager: npm install -g n //With the n module installed, you can use it to: Install the latest stable version: n stable Install the latest release: n latest Here is what the above code is Doing: 1. First, we’re clearing the npm…

Javascript Examples

react-native text overflow ellipsis

ByAnurag batra July 23, 2022June 30, 2022

Here is what the above code is Doing: 1. We’re using the Text component to display the text. 2. We’re using the numberOfLines prop to limit the number of lines to 1. 3. We’re using the ellipsizeMode prop to add an ellipsis at the end of the text.

Javascript Examples

change img src css

ByAnurag batra July 10, 2022June 30, 2022

// You cannot do it with CSS alone // You can with JS element.style.src = “someImage.jpg”; // Or with jQuery $(‘some-element’).attr(‘src’, ‘someImage.jpg’); Here is what the above code is Doing: 1. We’re selecting the element with the id of ‘some-element’ 2. We’re changing the src attribute of that element to ‘someImage.jpg’

Javascript Examples

counterup cdn

ByAnurag batra July 7, 2022June 30, 2022

//call counter $(‘.counter’).counterUp(); //call counter $(‘.counter’).counterUp({ delay: 10, time: 1000 }); Here is what the above code is Doing: 1. We’re including the jQuery library, the Waypoints library, and the Counter-Up library. 2. We’re calling the counterUp() function on the elements with the counter class. 3. We’re passing in an object with two properties: delay…

Javascript Examples

concatenate javascript array

ByAnurag batra July 18, 2022June 30, 2022

const fruits = [‘apple’, ‘orange’, ‘banana’]; const joinedFruits = fruits.join(); console.log(joinedFruits); // apple,orange,banana Here is what the above code is Doing: 1. We create an array called fruits. 2. We call the join() method on the fruits array. 3. We store the result in a variable called joinedFruits. 4. We log the value of joinedFruits…

how to check the extension of a file in javascript

Javascript Examples

how to check the extension of a file in javascript

ByAnurag batra August 5, 2022June 30, 2022

return filename.split(‘.’).pop(); Here is what the above code is Doing: 1. We’re using the split() method to split the filename into a list of strings. 2. We’re using the pop() method to remove the last item from the list. 3. We’re returning the last item from the list.

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