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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...
How to send a message to a particular client with socket.io
... I believe security is compromised here. What if I change the email in the script on the client side. Now I am able to read other private messages too. What are you saying?
– Gopinath Shiva
Mar 3 '16 at 4:03
...
Is there a way to do method overloading in TypeScript?
...rameter && typeof stringOrNumberParameter == "number")
alert("Variant #2: numberParameter = " + stringOrNumberParameter + ", stringParameter = " + stringParameter);
else
alert("Variant #1: stringParameter = " + stringOrNumberParameter);
}
}
...
Accessing member of base class
... Animal {
constructor(public name) {
}
move(meters) {
alert(this.name + " moved " + meters + "m.");
}
}
class Snake extends Animal {
move() {
alert(this.name + " is Slithering...");
super.move(5);
}
}
class Horse extends Animal {
move() {
...
jQuery: outer html() [duplicate]
...
No siblings solution:
var x = $('#xxx').parent().html();
alert(x);
Universal solution:
// no cloning necessary
var x = $('#xxx').wrapAll('<div>').parent().html();
alert(x);
Fiddle here: http://jsfiddle.net/ezmilhouse/Mv76a/
...
How do you rename a MongoDB database?
... renamed to db2 to achieve rename Database name.
you can do it in this Js script
var source = "source";
var dest = "dest";
var colls = db.getSiblingDB(source).getCollectionNames();
for (var i = 0; i < colls.length; i++) {
var from = source + "." + colls[i];
var to = dest + "." + colls[i];
db....
How to get a value of an element by name instead of ID
...n(){
var eventCategory=$("input[name=txtCategory]").val();
alert(eventCategory);
});
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Input text dialog Android
...
Sounds like a good opportunity to use an AlertDialog.
As basic as it seems, Android does not have a built-in dialog to do this (as far as I know). Fortunately, it's just a little extra work on top of creating a standard AlertDialog. You simply need to create an E...
Check if URL has certain string with PHP
...in the echo, be sure to use ' ' instead of " ".
I use this code to show an alert on my webpage https://geaskb.nl/
where the URL contains the word "Omnik"
but hide the alert on pages that do not contain the word "Omnik" in the URL.
...
How to Use slideDown (or show) function on a table row?
...down', 500); //slide speed
$('#row_id').slideRow('down', 500, function() { alert('Row available'); }); // slide speed and callback function
$('#row_id').slideRow('down', 500, 'linear', function() { alert('Row available'); }); slide speed, easing option and callback function
$('#row_id').slideRow('do...