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How can I get the URL of the current tab from a Google Chrome extension?
I'm having fun with Google Chrome extension, and I just want to know how can I store the URL of the current tab in a variable?
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Differences in boolean operators: & vs && and | vs ||
...;& and || but what are & and | ? Please explain these to me with an example.
11 Answers
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if/else in a list comprehension
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You can totally do that. It's just an ordering issue:
[unicode(x.strip()) if x is not None else '' for x in row]
In general,
[f(x) if condition else g(x) for x in sequence]
And, for list comprehensions with if conditions only,
[f(x) for x in s...
How to capitalize the first letter in a String in Ruby
The upcase method capitalizes the entire string, but I need to capitalize only the first letter.
8 Answers
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iTextSharp - Sending in-memory pdf in an email attachment
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Have you tried:
PdfWriter writer = PdfWriter.GetInstance(doc, memoryStream);
// Build pdf code...
writer.CloseStream = false;
doc.Close();
// Build email
memoryStream.Position = 0;
mm.Attachments.Add(new Attachment(memoryStream, "test.pdf"));...
How to Use slideDown (or show) function on a table row?
...for their visible display
property. The .hide() and .show()
methods, without animation, are always
safe to use with table rows. As of
jQuery version 1.1.3, .fadeIn() and
.fadeOut() can be used as well.
You can wrap your td contents in a div and use the slideDown on that. You need to ...
Dynamically creating keys in a JavaScript associative array
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Use the first example. If the key doesn't exist it will be added.
var a = new Array();
a['name'] = 'oscar';
alert(a['name']);
Will pop up a message box containing 'oscar'.
Try:
var text = 'name = oscar'
var dict = new Array()
var keyValuePair = text.replace(/ /g,'').s...
Eclipse - no Java (JRE) / (JDK) … no virtual machine
...rying to get Eclipse v3.5 (Galileo) to re-run on my computer - I have run it before with no problems, but now I keep getting this error:
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JRE 1.7 - java version - returns: java/lang/NoClassDefFoundError: java/lang/Object
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This problem stems from an improper Java installation.
Possibility 1
NOTE: This scenario only applies to Java 8 and prior. Beginning with Java 9, the JRE is structured differently. rt.jar and friends no longer exist, and Pack200 is no longer used.
The Java standard library is conta...
How to pass password to scp?
I know it is not recommended, but is it at all possible to pass the user's password to scp?
17 Answers
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