fetch get authorization header

ByAnurag batra August 7, 2022October 23, 2022

fetch('URL_GOES_HERE', { 
   method: 'post', 
   headers: new Headers({
     'Authorization': 'Basic '+btoa('username:password'), 
     'Content-Type': 'application/x-www-form-urlencoded'
   }), 
   body: 'A=1&B=2'
 });

Here is what the above code is Doing:
1. We’re using the fetch API to make a POST request to the URL.
2. We’re setting the Authorization header to the value of ‘Basic ‘+btoa(‘username:password’).
3. We’re setting the Content-Type header to the value of ‘application/x-www-form-urlencoded’.
4. We’re setting the body of the request to the value of ‘A=1&B=2’.

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javascript get 2nd child element

ByAnurag batra August 1, 2022June 30, 2022

//you can use the css nth-child property like this: var second-child = document.querySeletorAll(‘[your element name]:nth-child(2)’); Here is what the above code is Doing: 1. We’re selecting all the elements with the class name “box” 2. We’re looping through each of the elements 3. We’re adding a click event listener to each of the elements 4….

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javascript regex tester online

ByAnurag batra October 19, 2022September 6, 2022

very good help Here is what the above code is Doing: 1. We create a list of all the numbers from 1 to 100. 2. We iterate through the list and check if the number is divisible by 3 or 5. 3. If the number is divisible by 3 or 5, we add it to…

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array to string javascript

ByAnurag batra July 19, 2022June 30, 2022

const arr = [1, 2, ‘a’, ‘1a’]; const str = arr.toString(); console.log(str); //> “1,2,a,1a” Here is what the above code is Doing: 1. We create an array called arr. 2. We call the toString() method on arr. 3. We store the result in a variable called str. 4. We log str to the console.

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hot get access_token instead of url

ByAnurag batra September 27, 2022September 6, 2022

var urlString = ‘http://localhost:3000/_oauth/google#access_token=ya29.5HxuYol1Io8JLeGePDznbfkkwu_PC4uodKwG8_1clFYAn9AgdOV1WGpOTNQP3s76HAsn7Y4zWw&token_type=Bearer&expires_in=3600’; var url = new URL(urlString); // OR: If you want to use the current page’s URL var url = window.location; var access_token = new URLSearchParams(url.search).get(‘access_token’); Here is what the above code is Doing: 1. We create a new URL object, passing in the URL string we want to parse. 2. We…

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this.props undefined react native

ByAnurag batra October 3, 2022September 6, 2022

I think you’re missing the following, try replacing your constructor: constructor(props) { super(props); console.log(this.props) } Here is what the above code is Doing: 1. We’re creating a new class called App and extending the React.Component class. 2. We’re creating a new method called render() which returns some JSX. 3. We’re creating a new component called…

why to use arrow functions over normal function

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why to use arrow functions over normal function

ByAnurag batra July 5, 2022June 30, 2022

// => why to choose arrow function over normal function 1. short syntax, good as callback functions ([].map(() => {}) is better than [].map(function () {})) 2. when using class component, with arrow functions no need to bind this // example: -// this will be undefined button.addEventListener(‘click’, () => {console.log(this); }) // this will refer…

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