Html select input select all options at once with JavaScript -
i have code
<!doctype html> <html> <body> <select multiple> <option value="volvo">volvo</option> <option value="saab">saab</option> <option value="opel">opel</option> <option value="audi">audi</option> </select> </body> </html> i want select option @ once javascript i've tried google , did not found
here 1 way it:
function selectall() { options = document.getelementsbytagname("option"); for ( i=0; i<options.length; i++) { options[i].selected = "true"; } } <!doctype html> <html> <head> </head> <body> <select multiple> <option value="volvo">volvo</option> <option value="saab">saab</option> <option value="opel">opel</option> <option value="audi">audi</option> </select> <button onclick="selectall();">select all</button> </body> </html>
Comments
Post a Comment