How do I run code I have written in JavaScript?
Question
I am a beginner, all I have done is practiced writing code in Codecademy. After extensive searches of google for how to run a .js file, I turned up nothing. I assume I am asking the wrong question, and I am sure it is simple, but I couldn't find anything.
6 answers
solution1
8 2015-08-07 21:52:00
- open an editor. Simplest one is notepad
Write basic HTML there like below
<html> <head> </head> <body> Hello World! </body> </html>Add a script tag and write your js inside it like below
<html> <head> <script> alert("hello"); </script> </head> <body> Hello World! </body> </html>or you can write your js code in a file and save as .js file and link that in the above code
<html> <head> <script src="myScript.js"></script> </head> <body> Hello World! </body> </html>Save this as yourfile.HTML and open in any browser
Here's a link to learn more: http://www.w3schools.com/js/js_whereto.asp .
solution2
2 2015-08-07 21:54:14
Run javascript in your browser simply use this methods:
1 . use jsfiddle.net
2 . use developer console your browser (how to open console in Chrome/Firefox/Safari you can read in Wiki)
3 . write your own file with extention .html and put it:
<script>
alert('Hello world!');
</script>
into the file, save file and open on browser.
Every method have own benefits when you discover JS. We developers use every day all of this methods.
solution3
2 2015-08-07 22:00:36
This is an addition to previous answers.
If you want to practice simple JavaScript instructions and code snippets like you did in Codecademy you can use:
- Your browser console, I believe pressing F12 will open it on all popular browsers
- JS Console
- Node.js 's REPL ( installation instructions )
solution4
1 2015-08-07 21:51:13
You are to create a file with extension .html, so open up notepad or similar program and write the following:
<!DOCTYPE html>
<html>
<head>
<title></title>
</head>
<body>
<script type="text/javascript">
//Your code
alert("You made your fist javascript!");
</script>
</body>
</html>
Your javascript actions and codes go inside the <script> tag.
solution5
1 2015-08-07 21:53:05
When running a .js file, you just need to add it in your web page. Example.
If you have this as the content of a .js file say hello.js
alert('Yow!');
to use it, you create an HTML file
<html>
<body>
<script src="hello.js"></script>
</body>
</html>
solution6
0 2018-12-05 06:12:24
First install and setup Nodejs in your machine. Then write your javascript and save it in a folder. Open the command prompt inside the folder and write the command to execute.
node a.js
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