A non-capturing group groups a subpattern, allowing you to apply a quantifier to the entire group or use disjunctions within it. It acts like the grouping operator in JavaScript expressions, and unlike capturing groups, it does not memorize the matched text, allowing for better performance and avoiding confusion when the pattern also contains useful capturing groups.

The fr attribute defines the radius of the focal point for the radial gradient.

The from attribute indicates the initial value of the attribute that will be modified during the animation.

The points attribute defines a list of points. Each point is defined by a pair of number representing a X and a Y coordinate in the user coordinate system. If the attribute contains an odd number of coordinates, the last one will be ignored.

The pointsAtY attribute represents the y location in the coordinate system established by attribute primitiveUnits on the <filter> element of the point at which the light source is pointing.

# Contributors by commit history https://github.com/mdn/content/commits/main/files/en-us/web/svg/reference/attribute/calcmode/index.md # Original Wiki contributors Sebastianz Jeremie 184

The [Symbol.hasInstance]() method of Function instances specifies the default procedure for determining if a constructor function recognizes an object as one of the constructor's instances. It is called by the instanceof operator.

The __proto__ accessor property of Object instances exposes the [[Prototype]] (either an object or null) of this object.

The propertyIsEnumerable() method of Object instances returns a boolean indicating whether the specified property is this object's enumerable own property.

# Contributors by commit history https://github.com/mdn/content/commits/main/files/en-us/web/svg/reference/element/text/index.md # Original Wiki contributors olibre Jeremie Tigt APerson241 fscholz ...