如何填写输入，如果如此接近字段集，如何检查输入是否已填写。 [英] How do I check if inputs are filled in, if so close the field set.

问题描述

Really new to JavaScript and html. I would like to be able to create a function that checks if the input field is filled out and if so it closes down the field set. I have written the closing  field-set part I just cant figure out how to validate whether the user has filled out the input fields.

<fieldset>
        <legend><a href="#" onclick="doit()">Tell us who you are</a></legend>
        <div id="one">
            <div>
                <label> An injured worker</label>   
                <input type="radio" name="group1" value="injure"/> 
            </div>
            <div>
                <label> An employer </label>
                <input type="radio" name="group1" value="employee"/>
            </div>
            <div>
                <label> An injured worker and employer </label>
                <input type="radio" name="group1" value="both"/> 
            </div>
        </div>
    </fieldset>

我的尝试：



函数doit（）{

if（document.getElementById（'one'）。style.display =='none'）{

document.getElementById（'one'）。style.display ='block';

} else {

document.getElementById（'one'） .style.display ='none';

}

}

What I have tried:

function doit() {
if(document.getElementById('one').style.display == 'none'){
document.getElementById('one').style.display = 'block';
} else {
document.getElementById('one').style.display = 'none';
}
}

推荐答案

function check（）{

var r = document.getElementsByName（group1）

var c = -1



for（var I = 0;我< r.length; i ++）{

if（r [i] .checked）{

c = i;

}

}

if（c == -1）alert（请选择收音机）;

}

function check() {
var r = document.getElementsByName("group1")
var c = -1

for(var i=0; i < r.length; i++){
if(r[i].checked) {
c = i;
}
}
if (c == -1) alert("please select radio");
}

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