You need to concatenate your string. document.getElementById(tabName).style.backgroundImage = 'url(buttons/' + imagePrefix + '.png)';. ... <看更多>

In this video, you will learn how to set or change background image in javascript. ... <看更多>

Simple JavaScript Library to add parallax image to background-image - GitHub - appleple/backpax: Simple JavaScript Library to add parallax image to ... ... <看更多>

Javacript is Javascript. So Brilliant. Javascript course at Treehouse is going well. ... backgroundImage = imgArray[counter]; counter++; ... ... <看更多>