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jQuery .ready in a dynamically inserted iframe
...omeone clicks on a picture. In this iframe, we are using galleria a javascript library to display multiple pictures.
10 ...
How to install mongoDB on windows?
...in to one single Collection.
If you want to try out you can use below test scripts
***********************
TEST INSERT SCRIPT
*********EMPLOYEE******
db.test.save( { EmployeId: "1", EmployeFirstName: "Kodoth", EmployeLastName:"KodothLast", EmployeAge:"14" } )
db.test.save( { EmployeId: "2", Emp...
Two versions of python on linux. how to make 2.7 the default
...
Your distro installed a standard system Python in /usr/bin, and may have scripts that depend on this being present, and selected by #! /usr/bin/env python. You can usually get away with running Python 2.6 scripts in 2.7, but do you want to risk it?
On top of that, monkeying with /usr/bin can brea...
ES6 class variable alternatives
... return this.constructor.MY_CONST;
}
constructor() {
alert(this.MY_CONST === this.constructor.MY_CONST);
}
}
alert(MyClass.MY_CONST);
new MyClass
// alert: string ; true
But if MY_CONST is reference type like static get MY_CONST() {return ['string'];} alert output is str...
Does IE9 support console.log, and is it a real function?
...red to inherit from Object, nor its methods from Function, like native ECMAScript functions and objects do. This is the reason apply and call are undefined on those methods. In IE 9, most DOM objects were improved to inherit from native ECMAScript types. As the developer tools are considered an e...
Check if a key exists inside a json object
...(("merchant_id" in thisSession)==false)
{
// do nothing.
}
else
{
alert("yeah");
}
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/in
http://www.w3schools.com/jsref/jsref_operators.asp
...
Javascript communication between browser tabs/windows [duplicate]
What's the most reliable way to have Javascript communicate between tabs/windows of the same browser? For example, when Tab 2 starts audio playback, Tab 1 somehow knows about this and can pause it's player.
...
Getting a better understanding of callback functions in JavaScript
...) {
// "this" may be different depending how you call the function
alert(this);
};
callback(argument_1, argument_2);
callback.call(some_object, argument_1, argument_2);
callback.apply(some_object, [argument_1, argument_2]);
The method you choose depends whether:
You have the arguments...
How can I get a list of locally installed Python modules?
...p > 10.0!
My 50 cents for getting a pip freeze-like list from a Python script:
import pip
installed_packages = pip.get_installed_distributions()
installed_packages_list = sorted(["%s==%s" % (i.key, i.version)
for i in installed_packages])
print(installed_packages_list)
As a (too long) on...
How can I detect if a selector returns null?
...
if ( $("#anid").length ) {
alert("element(s) found")
}
else {
alert("nothing found")
}
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