本文介绍了javascript - 检查页面上是否至少选择了一个单选按钮的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我正在检查是否至少有一个单选按钮在页面上被选中,它们在不同的组中,所以我试图创建一个所有组的aray并运行它们,但我似乎无法看到什么代码有错误的人知道我做错了什么?
i am trying to check that at least one of my radio buttons are checked on the page, they are in different groups so i have tried to create an aray of all the groups and run therough them but i cant seems to see what is wrong with the code anyone know what i am doing wrong ?
function atLeastOneRadio() {
var chx = document.getElementsByTagName('input');
var day = new array();
day[0] = "monday";
day[1] = "tuesday";
day[2] = "wednesday";
day[3] = "thursday";
day[4] = "friday";
for (var i=0; i<chx.length; i++) {
if (chx[i].type == 'radio' chx[i].name == day[i] && chx[i].checked) {
return true;
}
}
return false;
}
推荐答案
类似于:
Something like:
//returns number of elements checked
$("input:checked").size();
//if you need to check if the name of the element is equal to something
$("input:checked").each(function(i){
return($.inArray(this.name, days));
});
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