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How do Google+ +1 widgets break out of their iframe?
... JavaScript widget is running within the context of your website and therefore is not constrained by the Origin Inheritance Rules for iframes. Therefore this JavaScript widget can set whatever DOM events it wants on the parent site even though it appears to be just a simple iframe.
Another thing,...
How to replace multiple strings in a file using PowerShell
I am writing a script for customising a configuration file. I want to replace multiple instances of strings within this file, and I tried using PowerShell to do the job.
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String length in bytes in JavaScript
In my JavaScript code I need to compose a message to server in this format:
13 Answers
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How to get the current date and time
...guments; this will assign the current date and time to the new object.
import java.util.Date;
Date d = new Date();
In the words of the Javadocs for the zero-argument constructor:
Allocates a Date object and initializes it so that it represents the time at which it was allocated, measured to ...
Inject errors into already validated form?
After my form.Form validates the user input values I pass them to a separate (external) process for further processing. This external process can potentially find further errors in the values.
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How to close current tab in a browser window?
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Note: the current tab is implied. This is equivalent:
window.close();
or you can specify a different window.
So:
function close_window() {
if (confirm("Close Window?")) {
close();
}
}
with HTML:
<a href="javascript:close_window();">close</a>
or:
<a href="#" onclic...
How to print the contents of RDD?
... view the content of a RDD, one way is to use collect():
myRDD.collect().foreach(println)
That's not a good idea, though, when the RDD has billions of lines. Use take() to take just a few to print out:
myRDD.take(n).foreach(println)
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TypeScript function overloading
... So, TypeScript restricts us from creating such functions.
TypeScript supports overloading based on number of parameters, but the steps to be followed are a bit different if we compare to OO languages. In answer to another SO question, someone explained it with a nice example: Method overloading?.
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Is there a (repeat-last-command) in Emacs?
Frequently, I've dug into apropos and docs looking for something like the following only to give up to get back to the task at hand:
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How do I check (at runtime) if one class is a subclass of another?
... edited Oct 8 '18 at 18:32
Trevor Boyd Smith
14.6k2323 gold badges9999 silver badges150150 bronze badges
answered Feb 6 '11 at 11:31
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