如何获取所有控件(单选按钮、选择、文本字段等)并将其状态设置为启用?
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717 次
2 回答
2
于 2012-08-28T15:13:13.983 回答
0
如果您不关心旧版浏览器,可以使用:
(function (slice) {
"use strict";
var elems;
//select the elements
elems = document.querySelectorAll('button, input, select, textarea');
//cast to an array
elems = slice.call(elems);
//iterate over the array
elems.forEach(function (el) {
//enable each element
el.disabled = false;
});
}(Array.prototype.slice));
否则,您将需要使用document.getElementsByTagName
并遍历每个标签:
(function (slice) {
"use strict";
var elems,
elem,
i,
l;
function getElemArr(tag) {
var els;
//get the elements
els = document.getElementsByTagName(tag);
//cast to array
els = slice.call(els);
return els;
}
//select each type
elems = [].concat(
getElemArr('button'),
getElemArr('input'),
getElemArr('select'),
getElemArr('textarea')
);
//loop over every element
for (i = 0, l = elems.length; i < l; i += 1) {
elem = elems[i];
elem.disabled = false;
}
}(Array.prototype.slice));
于 2012-08-28T15:14:15.240 回答