Get screen visual area

 1 client: function () {

 2 if(window.innerWidth !== < span style="color: #0000ff;">null){ // the latest Browser

 3 return {

 4 "width": window.innerWidth,

 5 "height": window.innerHeight

 6 }

 7 }else if(document.compatMode ==='CSS1Compat'){ // W3C

 8 return {

 9 "width": document.documentElement.clientWidth,

10 "height": document.documentElement.clientHeight

11 }

12 }

13 return {

14 "width": document.body.clientWidth,

15 "height": document.body.clientHeight

16 }

17 }

1 console.log(window.innerWidth, window.innerHeight);

2 console.log(document.documentElement.clientWidth, document.documentElement .clientHeight);

3 console.log(document.body.clientWidth, document.body.clientHeight);