# Contributors by commit history https://github.com/mdn/content/commits/main/files/en-us/web/javascript/reference/global_objects/weakset/index.md # Original Wiki contributors mfuji09 fscholz Zearin...

The has() method of WeakSet instances returns a boolean indicating whether an object exists in this WeakSet or not.

The blink() method of String values creates a string that embeds this string in a <blink> element (<blink>str</blink>), which used to cause a string to blink in old browsers.

The String.raw() static method is a tag function of template literals. This is similar to the r prefix in Python, or the @ prefix in C# for string literals. It's used to get the raw string form of template literals — that is, substitutions (e.g. ${foo}) are processed, but escape sequences (e.g. \n) are not.

# Contributors by commit history https://github.com/mdn/content/commits/main/files/en-us/web/svg/namespaces_crash_course/index.md # Original Wiki contributors RicardsVeveris somascope octopusinvitr...

# Contributors by commit history https://github.com/mdn/content/commits/main/files/en-us/web/svg/tutorial/index.md # Original Wiki contributors chrisdavidmills abuilham Tigt Manojkr trevorh Jeremie...

The Math.asin() static method returns the inverse sine (in radians) of a number. That is,

The Math.hypot() static method returns the square root of the sum of squares of its arguments. That is,

In this example, we use XHTML, SVG, JavaScript, and the DOM to animate a swarm of "motes". These motes are governed by two basic principles. First, each mote tries to move towards the mouse cursor, and second each mote tries to move away from the average mote position. Combined, we get this very natural-looking behavior.

The Math.sin() static method returns the sine of a number in radians.