Why language.length is giving 0?What is wrong in this code ? I was expecting language.lenth = 2.

Question

https://code.sololearn.com/WF8Yq0RIRZ02/?ref=app

Answer 1

Remove that document.write which is creating problem used before var language
This is what is happening
https://www.w3schools.com/jsref/met_doc_write.asp

Answer 2

window.onsubmit = function() {

var skill = document.getElementsByName("skill");

var message = "You selected -"

for(var i=0;i<skill.length;i++){

if(skill[i].checked){

message = message + " " + skill[i].value

};
};

var language = document.getElementsByName('language');

var message1 = "<br/>Language -"

for(var j=0;j<language.length;j++){

if(language[j].checked){

message1 = message1 + " " + language[j].value

};
};

document.write(message ,message1 );

};

Answer 3

Thanks everyone.

You are awesome.

Answer 4

Abhay is right: document.write cause an implicite document.open() wich reset all your document content, so after writing, there's zero elements of name 'language' to be selected ^^

Answer 5

visph

Thanks once again.

One related question, when a form is submitted, if I want to show some graph or pie chart or something, to the client based on his/her input,which tools do I need?

Answer 6

you could handle it on client side, by your own, or using some dedicated js library:

https://www.sitepoint.com/best-javascript-charting-libraries/

Answer 7

Thanks for sharing the link, it is very helpful.