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Most efficient way to store thousand telephone numbers
...ers" for the data structure: the first is a constant for the first five digits (17 bits); so from here on, each phone number has only the remaining five digits left. We view these remaining five digits as 17-bit binary integers and store k of those bits using one method and 17 - k = m with a differe...
What do parentheses surrounding an object/function/class declaration mean? [duplicate]
...
It is a self-executing anonymous function. The first set of parentheses contain the expressions to be executed, and the second set of parentheses executes those expressions.
It is a useful construct when trying to hide varia...
How to correctly save instance state of Fragments in back stack?
...e instance state by overriding onSaveInstanceState() and restore in onActivityCreated():
class MyFragment extends Fragment {
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
...
if (savedInstanceState ...
Validate that end date is greater than start date with jQuery
...ions answer. this extension method works using the jQuery validate plugin. It will validate dates and numbers
jQuery.validator.addMethod("greaterThan",
function(value, element, params) {
if (!/Invalid|NaN/.test(new Date(value))) {
return new Date(value) > new Date($(params).val());...
Any way to delete in vim without overwriting your last yank? [duplicate]
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Pass to the _ register, the black hole.
To delete a line without sticking it in the registers:
"_dd
See also :help registers.
It's probably safest, if you want to paste something over and over again, to yank it into a "named" register.
"aY
Yanks a line into the a register. P...
How do I replace text in a selection?
...ly found the answer I was looking for, on a mac if you do ⌘ + option + F it will bring up a Find-Replace bar at the bottom of your editor which is local to the file you have open.
There is an icon option which when hovered over says "In Selection" that you can select to find and replace within a ...
How to edit a JavaScript alert box title?
I'm generating a JavaScript alert with following code in C# .NET page:
11 Answers
11
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What is SELF JOIN and when would you use it? [duplicate]
What is self join and when would you use it? I don't understand self joins so a layman explanation with an example would be great.
...
How to create JSON string in JavaScript?
...omething like this, I am trying to create JSON string just to play around. It's throwing error, but if I put all the name, age, married in one single line (line 2) it doesn't. Whats the problem?
...
Parse (split) a string in C++ using string delimiter (standard C++)
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You can use the std::string::find() function to find the position of your string delimiter, then use std::string::substr() to get a token.
Example:
std::string s = "scott>=tiger";
std::string delimiter = ">=";
std::string token = s.substr(0, s.find(delimiter)); // token is "sc...