Glossary Index

Explore the glossary map Open a larger visual map of glossary categories and related terms without adding weight to the initial index load.
Showing 1–50 of 123 terms.
M
123 terms
Macaroon
An authorization credential that supports delegated restriction through cryptographically chained caveats.
Main axis
The main axis in flexbox is defined by the direction set by the flex-direction property.
Main thread
The main thread is where a browser processes user events and paints.
Map
The Map object holds key-value pairs and remembers the original insertion order of the keys.
Map() constructor
Parameters: iterable If an iterable object (such as an array) is passed, all of its elements will be added to the new Map.
Map.groupBy()
Note: In some versions of some browsers, this method was implemented as the method Array.prototype.groupToMap().
Map.prototype.delete()
The delete() method of Map instances removes the entry specified by the key from this Map.
Map.prototype.forEach()
The forEach() method of Map instances executes a provided function once per each key/value pair in this map, in insertion order.
Map.prototype.get()
The get() method of Map instances returns the value corresponding to the key in this Map, or undefined if there is none.
Map.prototype.getOrInsert()
The getOrInsert() method of Map instances returns the value corresponding to the specified key in this Map.
Map.prototype.has()
The has() method of Map instances returns a boolean indicating whether an entry with the specified key exists in this Map or not.
Map.prototype.set()
The set() method of Map instances adds a new entry with a specified key and value to this Map, or updates an existing entry if the key already exists.
Map.prototype[Symbol.iterator]()
The Symbol.iterator method of Map instances implements the iterable protocol and allows Map objects to be consumed by most syntaxes expecting iterables, such as the spread syntax and for...of loops.
Map[Symbol.species]
The Map[Symbol.species] static accessor property is an unused accessor property specifying how to copy Map objects.
map_deep()
map_deep(): Maps a function to all non-iterable elements of an array or an object.
map_meta_cap()
map_meta_cap(): Maps a capability to the primitive capabilities required of the given user to satisfy the capability being checked.
margin
The margin CSS shorthand property sets the margin area on all four sides of an element.
margin-block
The margin-block CSS shorthand property defines the logical block start and end margins of an element, which maps to physical margins depending on the element's writing mode, directionality, and text orientation.
margin-block-end
The margin-block-end CSS property defines the logical block end margin of an element, which maps to a physical margin depending on the element's writing mode, directionality, and text orientation.
margin-block-start
The margin-block-start CSS property defines the logical block start margin of an element, which maps to a physical margin depending on the element's writing mode, directionality, and text orientation.
margin-bottom
The margin-bottom CSS property sets the margin area on the bottom of an element.
margin-inline
The margin-inline CSS shorthand property defines both the logical inline start and end margins of an element, which maps to physical margins depending on the element's writing mode, directionality, and text orientation.
margin-inline-end
The margin-inline-end CSS property defines the logical inline end margin of an element, which maps to a physical margin depending on the element's writing mode, directionality, and text orientation.
margin-inline-start
The margin-inline-start CSS property defines the logical inline start margin of an element, which maps to a physical margin depending on the element's writing mode, directionality, and text orientation.
margin-left
The margin-left CSS property sets the margin area on the left side of an element.
margin-right
The margin-right CSS property sets the margin area on the right side of an element.
margin-top
The margin-top CSS property sets the margin area on the top of an element.
margin-trim
The margin-trim property allows the container to trim the margins of its children where they adjoin the container's edges.
marker
The marker CSS property points to a marker that will be drawn on the first, middle, and last vertices of the element's path; that is, at all of its vertices.
marker-end
The marker-end CSS property points to a marker that will be drawn on the last vertex of the element's path; that is, at its ending vertex.
marker-mid
The marker-mid CSS property points to a marker that will be drawn on the middle vertices of the element's path; that is, at each of its vertices between the start and end vertices.
marker-start
The marker-start CSS property points to a marker that will be drawn on the first vertex of the element's path; that is, at its starting vertex.
Markup
A markup language is one that is designed for defining and presenting text.
mask
The mask CSS shorthand property hides an element (partially or fully) by masking or clipping a specified area of the image.
mask-border
The mask-border CSS shorthand property lets you create a mask along the edge of an element's border.
mask-border-mode
The mask-border-mode CSS property specifies the blending mode used in a mask border.
mask-border-outset
The mask-border-outset CSS property specifies the distance by which an element's mask border is set out from its border box.
mask-border-repeat
The mask-border-repeat CSS property specifies how the images for the sides and the middle part of the mask border image are scaled and tiled.
mask-border-slice
The mask-border-slice CSS property divides the image set by mask-border-source into regions.
mask-border-source
The mask-border-source CSS property sets the source image used to create an element's mask border.
mask-border-width
The mask-border-width CSS property sets the width of an element's mask border.
mask-clip
The mask-clip CSS property determines the area which is affected by a mask.
mask-composite
The mask-composite CSS property represents a compositing operation used on the current mask layer with the mask layers below it.
mask-image
The mask-image CSS property sets the image that is used as the mask layer for an element, hiding sections of the element on which the masking image is set based on the alpha channel of the mask image and, depending on the mask-mode property value, the…
mask-mode
The mask-mode CSS property is set on the element being masked.
mask-origin
The mask-origin CSS property sets the origin of a mask.
mask-position
The mask-position CSS property sets the initial position, relative to the mask position layer set by mask-origin, for each defined mask image.
mask-repeat
The mask-repeat CSS property sets how mask images are repeated.
mask-size
The mask-size CSS property specifies the sizes of specified mask images.