Java script

Contents

Java script#

This section focuses on the Javascript programming language.

Js in jupyter#

This site uses jupyter as the main source of page construction. Fortunately, there are ready tools that allow to use java script inside jupyter notebooks ijavascript. Finally, you’ll be able to use Java script in Jupyter Notebook.

console.log("hello world")

hello world

Fetch#

fetch is a command that allows you to request a specific resource.

The following cell fetches google.com. At first we got promise.

response = fetch("http://google.com")
console.log(response.text())

Promise { <pending> }

Here is an example of getting the body of the request.

fetch("http://google.com")
  .then(response => {
    // Check if the response is okay (status code is in the range 200-299)
    if (!response.ok) {
      throw new Error('Network response was not ok');
    }
    return response.text(); // or response.json() if the body is JSON
  })
  .then(data => {
    console.log(data); // This is the body of the response
  })
  .catch(error => {
    console.error('There was a problem with the fetch operation:', error);
  });

Promise { <pending> }

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