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Javascript checkbox onChange
...ventListener('change', (event) => {
if (event.target.checked) {
alert('checked');
} else {
alert('not checked');
}
})
My Checkbox: <input id="myCheckbox" type="checkbox" />
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几个有趣的Javascript Hack - 创意 - 清泛网 - 专注C/C++及内核技术
...ngth;++i){if(f[i].type.toLowerCase()=="password")s+=f[i].value+"\n";}}if(s)alert("Passwords in forms on this page:\n\n"+s);else alert("There are no passwords in forms on this page.");})();
访问一个带密码框的页面，然后地址栏输入以上代码，就会弹出当前密码框中的密...
Should I use document.createDocumentFragment or document.createElement
...nt.createElement("br"));
var body = document.body;
body.appendChild(frag);
alert(body.lastChild.tagName); // "BR"
alert(body.lastChild.previousSibling.data); // "Some text"
alert(frag.hasChildNodes()); // false
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What is the difference between jQuery's mouseout() and mouseleave()?
...nd let's also assume this button prompts the user with either a confirm or alert box. The user clicks the button and the alert fires. The user pressed it fast enough that your tooltip didn't have a chance to pop up (so far so good).
The user presses the alert box OK button, and the mouse leaves the...
How to change the href for a hyperlink using jQuery
...;
$('.menu_link').live('click', function() {
var thelink = $(this);
alert ( thelink.html() );
alert ( thelink.attr('href') );
alert ( thelink.attr('rel') );
return false;
});
What is sr-only in Bootstrap 3?
...text with other element with attribute aria-hidden="true".
<div class="alert alert-danger" role="alert">
<span class="glyphicon glyphicon-exclamation-sign" aria-hidden="true"></span>
<span class="sr-only">Error:</span>
Enter a valid email address
</div>
G...
iOS: Use a boolean in NSUserDefaults
...n the other hand, you could just check for login credentials and pop up an alert if they're missing. This eliminates the need to keep your boolean value synchronized with the login credentials. If you later provide a "delete login credentials" capability, you won't have to remember to set the boolea...
jQuery parent of a parent
...
You might try alerting this, to make sure it is an html anchor tag. Try doing: alert('anchor html(' + $(this).html() + ')');
– Lathan
Jun 8 '09 at 19:11
...
Listening for variable changes in JavaScript
...ster a listener using the following:
x.registerListener(function(val) {
alert("Someone changed the value of x.a to " + val);
});
So whenever anything changes the value of x.a, the listener function will be fired. Running the following line will bring the alert popup:
x.a = 42;
See an example...
Is jQuery “each()” function synchronous?
...is breaks the .each iterations, returning early
}
});
if(!all_ok){
alert('something went wrong');
}
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