StylePropertyMapReadOnly

The StylePropertyMapReadOnly interface of the CSS Typed Object Model API provides a read-only representation of a CSS declaration block that is an alternative to CSSStyleDeclaration. Retrieve an instance of this interface using Element.computedStyleMap().

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Extended by

• StylePropertyMap

Methods

[iterator]()

iterator: StylePropertyMapReadOnlyIterator<[string, Iterable<CSSStyleValue, any, any>]>;

Returns

StylePropertyMapReadOnlyIterator<[string, Iterable<CSSStyleValue, any, any>]>

---

entries()

entries(): StylePropertyMapReadOnlyIterator<[string, Iterable<CSSStyleValue, any, any>]>;

Returns

StylePropertyMapReadOnlyIterator<[string, Iterable<CSSStyleValue, any, any>]>

---

forEach()

forEach(callbackfn, thisArg?): void;

Parameters

Parameter	Type
callbackfn	(value, key, parent) => void
thisArg?	any

Returns

void

---

get()

get(property): CSSStyleValue | undefined;

The get() method of the StylePropertyMapReadOnly interface returns a CSSStyleValue object for the first value of the specified property.

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Parameters

Parameter	Type
property	string

Returns

CSSStyleValue | undefined

---

getAll()

getAll(property): CSSStyleValue[];

The getAll() method of the StylePropertyMapReadOnly interface returns an array of CSSStyleValue objects containing the values for the provided property.

MDN Reference

Parameters

Parameter	Type
property	string

Returns

CSSStyleValue[]

---

has()

has(property): boolean;

The has() method of the StylePropertyMapReadOnly interface indicates whether the specified property is in the StylePropertyMapReadOnly object.

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Parameters

Parameter	Type
property	string

Returns

boolean

---

keys()

keys(): StylePropertyMapReadOnlyIterator<string>;

Returns

StylePropertyMapReadOnlyIterator<string>

---

values()

values(): StylePropertyMapReadOnlyIterator<Iterable<CSSStyleValue, any, any>>;

Returns

StylePropertyMapReadOnlyIterator<Iterable<CSSStyleValue, any, any>>

Properties

size

readonly size: number;

The size read-only property of the StylePropertyMapReadOnly interface returns an unsigned long integer containing the size of the StylePropertyMapReadOnly object.

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