MediaQueryListEvent.media - Web APIs 编辑

The media read-only property of the MediaQueryListEvent interface is a DOMString representing a serialized media query.

Syntax

var media = MediaQueryListEvent.media;

Value

A DOMString representing a serialized media query.

Examples

var mql = window.matchMedia('(max-width: 600px)');

function screenTest(e) {
  if (e.matches) {
    /* the viewport is 600 pixels wide or less */
    para.textContent = 'This is a narrow screen — less than 600px wide.';
    document.body.style.backgroundColor = 'red';
  } else {
    /* the viewport is more than than 600 pixels wide */
    para.textContent = 'This is a wide screen — more than 600px wide.';
    document.body.style.backgroundColor = 'blue';
  }

  console.log(e.media);
}

mql.addListener(screenTest);

Specifications

Browser compatibility

BCD tables only load in the browser

See also

• Media queries
• Using media queries from code
• window.matchMedia()
• MediaQueryList
• MediaQueryListEvent