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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 may I sort a list alphabetically using jQuery?
...ng references to the elements are lost. All event listeners bound from JavaScript are lost. It would be better to store the elements instead of innerHTML, use a sort function (vals.sort(function(a, b) {return b.innerHTML < a.innerHTML;})) and appendChild to move elements.
– ...
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...
++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 ...
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
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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...
REST authentication and exposing the API key
...then if it's just the sign that's passed...isn't that still exposed in javascript...so if I put a flicker photo on my webpage via their API (called by javascript), and you visit my page, aren't I exposing my API key to anyone who visits my page?
– tjans
Mar 29 ...
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
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How to display a Yes/No dialog box on Android?
Yes, I know there's AlertDialog.Builder, but I'm shocked to know how difficult (well, at least not programmer-friendly) to display a dialog in Android.
...
Check whether variable is number or string in JavaScript
... This is not correct! There are two possible representations of a string. alert(typeof new String()) will output "Object". Worse, javascript will occasionally convert back and forth between the two representations behind the scenes for optimization purposes
– George Mauer
...