FontFaceSet.check()
The check()
method of the FontFaceSet
returns whether all
fonts in the given font list have been loaded and are available.
Syntax
aFontFaceSet.check(font);
aFontFaceSet.check(font, text);
Returns
A Boolean
value that is true
if the font list is available.
Parameters
font
-
a font specification using the CSS value syntax, for example
"italic bold 16px Roboto"
text
-
limit the font faces to those whose Unicode range contains at least one of the characters in text. This does not check for individual glyph coverage.
Examples
In the following example, the first line will print true
if the Courier font is available at 12px
. The second line will print true
if the font MyFont
contains the "ß" character.
console.log(document.fonts.check("12px courier"));
console.log(document.fonts.check("12px MyFont", "ß"));
Specifications
Specification |
---|
CSS Font Loading Module Level 3 # dom-fontfaceset-check |
Browser compatibility
BCD tables only load in the browser