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Sum a list of numbers in Python
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Question 1: So you want (element 0 + element 1) / 2, (element 1 + element 2) / 2, ... etc.
We make two lists: one of every element except the first, and one of every element except the last. Then the averages we want are the averages of each pair taken from...
jQuery If DIV Doesn't Have Class “x”
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answered Feb 6 '09 at 13:24
alphadoggalphadogg
11.8k66 gold badges4444 silver badges8080 bronze badges
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What's the difference between console.dir and console.log?
...dir(/foo/);
* /foo/
global: false
ignoreCase: false
lastIndex: 0
...
You can also see a clear difference with arrays (e.g., console.dir([1,2,3])) which are logged differently from normal objects:
> console.log([1,2,3])
[1, 2, 3]
> console.dir([1,2,3])
* Array[3]
0: 1
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Why is String.chars() a stream of ints in Java 8?
...tten with Java 8.
In Java 7 I would have done it like this:
for (int i = 0; i < hello.length(); i++) {
System.out.println(hello.charAt(i));
}
And I think a reasonable method to do it in Java 8 is the following:
hello.chars()
.mapToObj(i -> (char)i)
.forEach(System.out:...
What is the minimum length of a valid international phone number?
... pretty good!
Taking an example:
String phoneNumberE164Format = "+14167129018"
PhoneNumberUtil phoneUtil = PhoneNumberUtil.getInstance();
try {
PhoneNumber phoneNumberProto = phoneUtil.parse(phoneNumberE164Format, null);
boolean isValid = phoneUtil.isValidNumber(phoneNumberProto); // return...
What's the meaning of Base SDK, iOS deployment target, Target, and Project in xcode
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The base SDK is what you build your app against (i.e. include and library files and frameworks)....
p vs puts in Ruby
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answered Aug 10 '09 at 14:52
sepp2ksepp2k
331k4747 gold badges636636 silver badges653653 bronze badges
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Differences between detach(), hide() and remove() - jQuery
... Jacob RelkinJacob Relkin
147k2929 gold badges330330 silver badges312312 bronze badges
7
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Why does int num = Integer.getInteger(“123”) throw NullPointerException?
... of the Puzzlers: Schlock and Awe (TS-5186), Josh Bloch and Neal Gafter's 2009 JavaOne Technical Session presentation. Here's the concluding slide:
The Moral
Strange and terrible methods lurk in libraries
Some have innocuous sounding names
If your code misbehaves
Mak...