Welcome to a quick tutorial and example on how to post form data using Javascript Fetch. So you have just started with the Javascript Fetch API, and wondering how to send data with it? To post form data using Javascript Fetch, simply set the send method to “post”, and set the form data in the …
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Welcome to a tutorial and example on how to create a NodeJS live chat application with WebSockets. Yes, it is possible to build an entire live chat driven by pure Javascript. The general mechanics of a live chat are: Create a WebSocket server to accept and manage the connections. Create a live chat page that …
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Welcome to a quick tutorial on how to create an HTTP web server with NodeJS. Yes, you read that right. It is possible to run a simple web server with NodeJS if you are lazy to install a full-featured server stack. One of the easiest ways to set up a NodeJS HTTP web server without …
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Welcome to a tutorial and example on how to do a Javascript Fetch request with HTTP basic auth. To perform Fetch with HTTP basic auth, simply include the authorization headers in the request. var credentials = btoa(“USER:PASSWORD”); var auth = { “Authorization” : `Basic ${credentials}` }; fetch(“http://site.com/protected/”, { headers : auth }); That covers the …
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Welcome to a tutorial on how to read and parse a CSV file into an array or object in Javascript. Need to read a CSV file in your project? Yes, it is possible to do so in modern Javascript. No server-side scripts nor third-party libraries are required – Read on for the examples! ⓘ I …
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Welcome to a short tutorial on how to add leading and trailing zeroes to numbers in Javascript. So you have some numbers that require padding of zeroes? The easy way to add leading or trailing zeroes in Javascript is to: Concatenate the number with a string of zeroes. var num = “000” + 123; var …
How To Add Leading & Trailing Zeroes To Numbers In Javascript Read More »
Welcome to a tutorial and example of how to download a file using Javascript Fetch. Want to initiate a file download using Javascript Fetch? Yes, it is possible. To download a file using Javascript fetch, return the result as a blob, and create a download link to the blob object. fetch(“URL”) .then((res) => { return …
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Welcome to a quick tutorial and examples of how to toggle fullscreen mode with Javascript. Yes, the old grandmother’s age of the Internet is over now. Modern web browsers can be switched to full-screen mode in Javascript easily. To enter fullscreen mode for the entire page – document.documentElement.requestFullscreen() To enter fullscreen mode for a specific …
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Welcome to a quick tutorial on how to check if a value exists in an object in Javascript. So you have probably tried to do a includes(“VALUE”) to check if an object contains a certain value. But as it turns out, objects don’t have that very convenient function. The common ways to check if a …
2 Ways To Check If Value Exists In Javascript Object Read More »
Welcome to a tutorial on how to pass variables between pages in Javascript. Need to pass some data between different pages? An easy way to pass variables between pages is to use a query string: On the first page: var para = new URLSearchParams(); para.append(“KEY”, “VALUE”); location.href = “HTTP://SITE.COM/PAGE.HTML?” + para.toString(); On the second page: …
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