export default arrow function

ByAnurag batra July 1, 2022June 30, 2022

// You can only export anonymous functions directly
export default () => console.log("Hello World.");

// If you want named exports, you have to export it seperately
const App = () => console.log("This is an app.");
export default App;

Here is what the above code is Doing:
1. We’re exporting a function that logs “Hello World” to the console.
2. We’re exporting a function that logs “This is an app” to the console.

The first export is an anonymous function, so we can export it directly.
The second export is a named function, so we have to export it seperately.

The default export is the first export.

Javascript Examples

window.location.search ignore ?

ByAnurag batra July 5, 2022June 30, 2022

window.location.search.substr(1); Here is what the above code is Doing: 1. We’re using the window.location.search property to get the query string from the URL. 2. We’re using the substr() method to remove the ‘?’ character from the beginning of the query string. 3. We’re using the split() method to split the query string into a list…

Javascript Examples

string in js

ByAnurag batra July 6, 2022June 30, 2022

let str1 = ‘hello’ let str2 = ‘hello’ let strObj1 = new String(‘hello’); let strObj2 = new String(‘hello’); console.log(str1 === str2) // true console.log(str1 == strObj1) // true console.log(str1 === strObj1) // false console.log(strObj1 == strObj2) // false Here is what the above code is Doing: 1. str1 and str2 are both primitive strings. 2….

Javascript Examples

javascript clear sembols

ByAnurag batra July 14, 2022June 30, 2022

str.replace(/[~`!@#$%^&*()+={}\[\];:\’\”.,\/\\\?-_]/g, ”); Here is what the above code is Doing: 1. We’re using the replace() method to replace all the non-alphanumeric characters with an empty string. 2. We’re using the global flag to replace all occurrences of the non-alphanumeric characters. 3. We’re using the character set [~`!@#$%^&*()+={}\[\];:\’\”.,\/\\\?-_] to match all the non-alphanumeric characters.

Javascript Examples

react router Link does work

ByAnurag batra July 23, 2022June 30, 2022

import { Link } from ‘react-router-dom’; Here is what the above code is Doing: 1. We’re importing the React library, which is required for all React components. 2. We’re importing the Component class from the React library. We’ll use this class to create our component. 3. We’re importing the Link component from the react-router-dom library….

compare string camelcase and lowercase javascript

Javascript Examples

compare string camelcase and lowercase javascript

ByAnurag batra August 7, 2022June 30, 2022

var text = ‘helloThereMister’; var result = text.replace( /([A-Z])/g, ” $1″ ); var finalResult = result.charAt(0).toUpperCase() + result.slice(1); console.log(finalResult); Here is what the above code is Doing: 1. We’re using the replace() method to replace all capital letters with a space and the capital letter. 2. We’re using the charAt() method to get the first…

Javascript Examples

google maps js on map load

ByAnurag batra July 7, 2022June 30, 2022

google.maps.event.addListenerOnce(map, ‘idle’, function(){ // do something only the first time the map is loaded }); Here is what the above code is Doing: 1. Create a new map object 2. Set the map’s center to the coordinates of the city of San Francisco 3. Set the map’s zoom level to 12 4. Add a marker…

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