How to get the width of the browser

How to get the width of a browser
What is the specific use method?

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JScript Code

JS Adjust page height document.getElementById ("Leftmenu"). style.height=window.screen.availheight;//menu navigation height equals browser height ; document.getElementById ("Rightmessage"). style.height=window.screen.availheight;//right message height equals browser height ; document.getElementById ("Leftmenu"). Style.height=document.getelementbyid ("Rightmessage"). style.height;// Make the left and right sides height equal;//Use the height percentage in the div to set the parent element of the div to be 100%
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HTML DOM innerheight, innerwidth properties
A read-only property that declares the height and width of the window's document display, measured in pixels.
The width and height do not include the height of the menu bar, toolbars, and scroll bars.
IE does not support these properties. It is substituted with the clientwidth and clientheight attributes of Document.documentelement or ducument.body (related to the version of IE).


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