大约有 44,000 项符合查询结果（耗时：0.0290秒） [XML]
How can I sanitize user input with PHP?
...re is a built-in FILTER_VALIDATE_EMAIL type
My own filter class (uses JavaScript to highlight faulty fields) can be initiated by either an ajax request or normal form post. (see the example below)
/**
* Pork.FormValidator
* Validates arrays or properties by setting up simple arrays.
* ...
How can I check if a key is pressed during the click event with jQuery?
...vent properties;
$("button").click(function(evt) {
if (evt.ctrlKey)
alert('Ctrl down');
if (evt.altKey)
alert('Alt down');
// ...
});
See quirksmode for more properties. If you want to detect other keys, see cletus's answer.
...
++someVariable vs. someVariable++ in JavaScript
...+ evaluates the value, then increments and stores it.
var n = 0, m = 0;
alert(n++); /* Shows 0, then stores n = 1 */
alert(++m); /* Shows 1, then stores m = 1 */
Note that there are slight performance benefits to using ++x where possible, because you read the variable, modify it, then evaluate ...
Set cursor position on contentEditable
...set);
} else {
// Failure here, not handled by the rest of the script.
// Probably IE or some older browser
}
};
// Recalculate selection while typing
editable.onkeyup = captureSelection;
// Recalculate selection after clicking/drag-selecting
editable.onmousedown = function...
Form inside a form, is that alright? [duplicate]
... know. I've implemented it in the past with custom data attributes and javascript when I could have just included a html5 shim library.
– Jon Hulka
Mar 22 '17 at 18:10
9
...
Check whether an input string contains a number in javascript
... implementing
var val = $('yourinputelement').val();
if(isNumeric(val)) { alert('number'); }
else { alert('not number'); }
Update: To check if a string has numbers in them, you can use regular expressions to do that
var matches = val.match(/\d+/g);
if (matches != null) {
alert('number');
}
...
Programmatically Request Access to Contacts
...k];
} else {
// User denied access
// Display an alert telling user the contact could not be added
}
});
}
else if (ABAddressBookGetAuthorizationStatus() == kABAuthorizationStatusAuthorized) {
// The user has previously given access, add the contact
[s...
What is the preferred syntax for defining enums in JavaScript?
...Script anymore. See my blog post for more details: Enums in JavaScript.
Alerting the name is already possible:
if (currentColor == my.namespace.ColorEnum.RED) {
// alert name of currentColor (RED: 0)
var col = my.namespace.ColorEnum;
for (var name in col) {
if (col[name] == col.RED...
JavaScript: clone a function
... {
temp[key] = this[key];
}
}
return temp;
};
alert(x === x.clone());
alert(x() === x.clone()());
alert(t === t.clone());
alert(t(1,1,1) === t.clone()(1,1,1));
alert(t.clone()(1,1,1));
share
...
Tools for JPEG optimization? [closed]
...DLL available if you want to incorporate it into your own programs or java script / c++ program.
Another alternative is http://pnggauntlet.com/ PNGGAUNTLET takes forever but it does a pretty good job.
[WINDOWS ONLY]
share
...