create a sha256 hash from a string in javascript

One way to create a SHA256 hash from a string in Javascript is by using the CryptoJS library.

You can install the library via npm or include it in your HTML file using a script tag.

Here's an example code block that shows how to use CryptoJS to create a SHA256 hash from a string:

index.tsx
const CryptoJS = require("crypto-js");

const myString = "hello world";
const hash = CryptoJS.SHA256(myString).toString();

console.log(hash);
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In this example, we first import the CryptoJS library using the Node.js require() function. We then create a string variable myString containing the text we want to hash.

Next, we use the CryptoJS.SHA256(myString) function to calculate the SHA256 hash of myString. We call the toString() function on the resulting hash object to convert it to a string. Finally, we log the hash to the console.

You can customize the hash output by using the CryptoJS.MD5, CryptoJS.SHA1, CryptoJS.SHA512, etc. to meet your needs.