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Return the current URL

Use Window.location.href to get the URL of the current page.

Arrays are container-like values that can hold other values. The values inside an array are called elements.

This function returns forward if user selected text from the left to right. It returns backward in the other case.

Get a style, and then if this style is not set as an inline style directly on the element, it returns an empty string.

Instead of writing an if-else on multiple lines, you can use the ternary operator to write the whole statement with one line of code.

Use Window.getSelection() and Selection.toString() to get the currently selected text.

Conditional statements control behavior in JavaScript and determine whether or not pieces of code can run.

The following function returns the default value of CSS property for given tagName.

Here is how to loop through arrays and array-like objects using JavaScript.

When you’re working with JavaScript, sometimes you need to access query string parameters in your script.