/Html/Document.getElementByClassName("preview").innerHTML=src;

Document.getElementByClassName("preview").innerHTML=src;

function update(previewPic){
/* In this function I should 
    1) change the URL for the background image of the div with the id = "image" 
    to the source file of the preview image

    2) Change the text of the div with the id = "image" 
    to the alt text of the preview image 
    */
   document.getElementById("image").setAttribute('style', 'background-image: url(' +  previewPic.getAttribute("src") + ')');
   document.getElementById("image").innerHTML = previewPic.getAttribute("alt");
}


function undo(){
    document.getElementById("image").style.backgroundImage = "";
    document.getElementById("image").title = "";
}

Source: stackoverflow.com

Similar codes

1 vote190 views1 answer
Allow xlsx and csv files rails file field accept values
Html
0 vote160 views1 answer
In html the color for red
Html
0 vote174 views2 answers
Reveal CSS Animations
Html
0 vote158 views2 answers
Html insert html snippets
Html
0 vote159 views1 answer
Html video multiple elements
Html
5 votes164 views6 answers
Bootstrap nav tabs example
Html
0 vote172 views1 answer
Html insert pdf
Html
0 vote168 views1 answer
How to align input line in html forms
Html
1 vote175 views2 answers
Salesforce aura toggle input
Html
0 vote177 views2 answers
Laravel route explicit binding
Html