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How can I determine the direction of a jQuery scroll event?
...is).scrollTop();
if (currentScroll > previousScroll){
alert('down');
} else {
alert('up');
}
previousScroll = currentScroll;
});
}()); //run this anonymous function immediately
...
How is a non-breaking space represented in a JavaScript string?
...f (p.text() == String.fromCharCode(160) && p.text() == '\xA0')
alert('Character 160');
Shows an alert, as the ASCII equivalent of the markup is returned instead.
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What is the difference between call and apply?
.../ This also has the unintentional side effect of adding a value to window:
alert(window.value); // Alerts NaN
Even though obj.addValues and f refer to the same function, they behave differently when called because the value of the receiver is different in each call. For this reason, when calling a...
How do I replace a character at a particular index in JavaScript?
...replacement.length);
}
And use it like this:
var hello = "Hello World";
alert(hello.replaceAt(2, "!!")); // Should display He!!o World
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How can I detect whether an iframe is loaded?
... load:function(){
$(this).show();
alert('iframe loaded !');
}
});
$('body').append(ifr);
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<button id='cli...
How can I do string interpolation in JavaScript?
... 'string' || typeof r === 'number' ? r : a;
}
);
};
// Usage:
alert("I'm {age} years old!".supplant({ age: 29 }));
alert("The {a} says {n}, {n}, {n}!".supplant({ a: 'cow', n: 'moo' }));
If you don't want to change String's prototype, you can always adapt it to be standalone, or place ...
QuotaExceededError: Dom exception 22: An attempt was made to add something to storage that exceeded
...totype.setItem;
Storage.prototype.setItem = function() {};
alert('Your web browser does not support storing settings locally. In Safari, the most common cause of this is using "Private Browsing Mode". Some settings may not save or some features may not work properly for you.');
}...
Undefined reference to symbol X509_free - C/C++ - 清泛网 - 专注C/C++及内核技术
...nce-to-symbol-x509-freeUndefined reference to symbol X509_free 编译错误的解决方法：链接库中增加 -lcrypto，而非 -lcrypt参考：https: stackoverflow com questions 33215936 undefined-reference-to-symbol-x509-freeUndefined reference to symbol X509_free 编译错误的解决方法：...
Detect rotation of Android phone in the browser with JavaScript
...e" : "resize";
window.addEventListener(orientationEvent, function() {
alert('HOLY ROTATING SCREENS BATMAN:' + window.orientation + " " + screen.width);
}, false);
Check the window.orientation property to figure out which way the device is oriented. With Android phones, screen.width or screen....
setTimeout or setInterval?
...ions or on a clock tick, then use setInterval().
function doStuff() {
alert("run your code here when time interval is reached");
}
var myTimer = setInterval(doStuff, 5000);
setTimeout()
setTimeout() is a time based code execution method that will execute a script only one time when the inter...