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What does map(&:name) mean in Ruby?
...want to do things point-free style. An example is to check if there is any string in an array that is equal to the string "foo". There is the conventional way:
["bar", "baz", "foo"].any? { |str| str == "foo" }
And there is the point-free way:
["bar", "baz", "foo"].any?(&"foo".method(:==))
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How do I check if an HTML element is empty using jQuery?
... A slightly more compressed version can take advantage of empty string's falsy-ness: if(!$.trim($("selector").html())
– Brandon Belvin
Aug 8 '13 at 15:41
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How do I check if I'm running on Windows in Python? [duplicate]
...s the system/OS name, e.g. 'Linux', 'Windows' or 'Java'.
An empty string is returned if the value cannot be determined.
If that isn't working, maybe try platform.win32_ver and if it doesn't raise an exception, you're on Windows; but I don't know if that's forward compatible to 64-bit, sin...
What do we mean by Byte array? [closed]
... 16-bit unsigned int from 0..65535), international character sets, textual strings ("hello"), or part/all of a compiled computer programs.
The crucial thing about a byte array is that it gives indexed (fast), precise, raw access to each 8-bit value being stored in that part of memory, and you can o...
ASP.NET MVC - passing parameters to the controller
...lt ViewNextItem(int? id) makes the id integer a nullable type, no need for string<->int conversions.
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What is the difference between integration and unit tests?
...re classes. Another case is that most classes use third-party classes (the String/string class, collection classes, etc.) which don't make sense to be mocked or isolated from; we simply regard them as stable and reliable dependencies which are outside the testing scope.
– Rogé...
How to get thread id from a thread pool?
...rt java.util.concurrent.*;
class ThreadIdTest {
public static void main(String[] args) {
final int numThreads = 5;
ExecutorService exec = Executors.newFixedThreadPool(numThreads);
for (int i=0; i<10; i++) {
exec.execute(new Runnable() {
public void run() {
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Django template tag to truncate text
...mplate filter, that add "..." to the end of (last word of) the (truncated) string as well:
from django import template
register = template.Library()
@register.filter("truncate_chars")
def truncate_chars(value, max_length):
if len(value) > max_length:
truncd_val = value[:max_length]
...
How to escape double quotes in a title attribute
I am trying to use a string that contains double quotes in the title attribute of an anchor. So far I tried these:
8 Answer...
Add up a column of numbers at the Unix shell
...nt(x) for x in sys.stdin))" Traceback (most recent call last): File "<string>", line 1, in <module> File "<string>", line 1, in <genexpr> ValueError: invalid literal for int() with base 10: '\n'
– don bright
Jun 28 at 1:10
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