使用例如动态创建单选按钮
var radioInput = document.createElement('input');
radioInput.setAttribute('type', 'radio');
radioInput.setAttribute('name', name);
适用于Firefox,但不适用于IE。为什么不?
发布于 2018-10-25 09:30:22
这是一个更通用的解决方案的例子,它可以预先检测IE并处理IE也有问题的其他属性,从DOMBuilder中提取:
var createElement = (function()
{
// Detect IE using conditional compilation
if (/*@cc_on @*//*@if (@_win32)!/*@end @*/false)
{
// Translations for attribute names which IE would otherwise choke on
var attrTranslations =
{
"class": "className",
"for": "htmlFor"
};
var setAttribute = function(element, attr, value)
{
if (attrTranslations.hasOwnProperty(attr))
{
element[attrTranslations[attr]] = value;
}
else if (attr == "style")
{
element.style.cssText = value;
}
else
{
element.setAttribute(attr, value);
}
};
return function(tagName, attributes)
{
attributes = attributes || {};
// See http://channel9.msdn.com/Wiki/InternetExplorerProgrammingBugs
if (attributes.hasOwnProperty("name") ||
attributes.hasOwnProperty("checked") ||
attributes.hasOwnProperty("multiple"))
{
var tagParts = ["<" + tagName];
if (attributes.hasOwnProperty("name"))
{
tagParts[tagParts.length] =
' name="' + attributes.name + '"';
delete attributes.name;
}
if (attributes.hasOwnProperty("checked") &&
"" + attributes.checked == "true")
{
tagParts[tagParts.length] = " checked";
delete attributes.checked;
}
if (attributes.hasOwnProperty("multiple") &&
"" + attributes.multiple == "true")
{
tagParts[tagParts.length] = " multiple";
delete attributes.multiple;
}
tagParts[tagParts.length] = ">";
var element =
document.createElement(tagParts.join(""));
}
else
{
var element = document.createElement(tagName);
}
for (var attr in attributes)
{
if (attributes.hasOwnProperty(attr))
{
setAttribute(element, attr, attributes[attr]);
}
}
return element;
};
}
// All other browsers
else
{
return function(tagName, attributes)
{
attributes = attributes || {};
var element = document.createElement(tagName);
for (var attr in attributes)
{
if (attributes.hasOwnProperty(attr))
{
element.setAttribute(attr, attributes[attr]);
}
}
return element;
};
}
})();
// Usage
var rb = createElement("input", {type: "radio", checked: true});
完整的DOMBuilder版本还处理事件侦听器注册和子节点规范。
发布于 2018-10-25 09:38:45
从Patrick的建议中迈出一步,使用一个临时节点,我们可以去掉try/catch:
function createRadioElement(name, checked) {
var radioHtml = '<input type="radio" name="' + name + '"';
if ( checked ) {
radioHtml += ' checked="checked"';
}
radioHtml += '/>';
var radioFragment = document.createElement('div');
radioFragment.innerHTML = radioHtml;
return radioFragment.firstChild;
}
https://stackoverflow.com/questions/-100000877
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