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Press alt + numeric in bash and you get (arg [numeric]) what is that?
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The term you want to google for is:
"readline arguments"
This will lead to, for example, this chapter from the bash reference manual:
You can pass numeric arguments to Readline commands. Sometimes the argument acts as a repeat count, other t...
How is it possible to declare nothing inside main() in C++ and yet have a working application after
...fibs(), 0);
int main() {}
In this code, the global variable ignore has to be initialized before entering into main() function. Now in order to initialize the global, print_fibs() needs to be executed where you can do anything — in this case, compute fibonacci numbers and print them! A similar ...
Proper package naming for testing with the Go language
...seen several different test package naming strategies within Go and wanted to know what pros and cons of each are and which one I should use.
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Difference between $(this) and event.target?
I'm new to jQuery, and was making tabbed panels, following the tutorial in JavaScript and jQuery : The Missing Manual , there's that first line when the author does this :
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Javascript foreach loop on associative array object
...key in arr_jq_TabContents) {
console.log(arr_jq_TabContents[key]);
}
To be safe, it's a good idea in loops like that to make sure that none of the properties are unexpected results of inheritance:
for (var key in arr_jq_TabContents) {
if (arr_jq_TabContents.hasOwnProperty(key))
console....
Get all non-unique values (i.e.: duplicate/more than one occurrence) in an array
I need to check a JavaScript array to see if there are any duplicate values. What's the easiest way to do this? I just need to find what the duplicated values are - I don't actually need their indexes or how many times they are duplicated.
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What is the difference between ArrayList.clear() and ArrayList.removeAll()?
...t<String> arraylist , is arraylist.removeAll(arraylist) equivalent to arraylist.clear() ?
9 Answers
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Check if full path given
Is there a method to check if given path is full path? Right now im doing this:
9 Answers
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How does grep run so fast?
I am really amazed by the functionality of GREP in shell, earlier I used to use substring method in java but now I use GREP for it and it executes in a matter of seconds, it is blazingly faster than java code that I used to write.(according to my experience I might be wrong though)
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Difference between Pig and Hive? Why have both? [closed]
...d use a SQL like Hive rather than Pig. He makes a very convincing case as to the usefulness of a procedural language like Pig (vs. declarative SQL) and its utility to dataflow designers.
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