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JavaScript in <head> or <body> You can place any number of scripts in an HTML document. Scripts can be placed in the <body> , or in the <head> section of an HTML page, or in both.
Create a New Function with the Function Constructor const code = "alert('Hello World'); let x = 100"; const F = new Function(code); F(); to create the code string and store it into the code variable. Then we pass code into the Function constructor to create a function from it. And then we call F to run the function.
To include an external JavaScript file, we can use the script tag with the attribute src . You've already used the src attribute when using images. The value for the src attribute should be the path to your JavaScript file. This script tag should be included between the <head> tags in your HTML document.
In JavaScript, there are three ways to write a string — they can be written inside single quotes ( ' ' ), double quotes ( " " ), or backticks ( ` ` ).
I've been trying some tricks in javascript and came to a ridiculous problem: I can't use <script> as a substring in a javascript string! Here is an example:
<html> <head> <script> alert("<script></script>"); </script> </head> </html> It supposed to print out <script></script>, but instead, I get this:
"); Printed out on the page, as HTML.
Question: How can I use <script> followed by </script> substrings in Javascript, and why is it acting that way?
Here is JSFiddle of it.
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