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What is the difference between a string and a byte string?
...e stored in a computer.
On the other hand, a character string, often just called a "string", is a sequence of characters. It is human-readable. A character string can't be directly stored in a computer, it has to be encoded first (converted into a byte string). There are multiple encodings through ...
Can modules have properties the same way that objects can?
...is? When I put this code in one file x.py and import it from another, then calling x.y results in AttributeError: 'NoneType' object has no attribute 'c', since _M somehow has value None...
– Stephan202
May 19 '09 at 1:35
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App Inventor 2 SQLite 拓展：超流行兼容主流SQL语法的迷你本地数据库引擎 ...
...：
cn.fun123.SQLite.aix
SQLite
SQLite 是 Android 内置的小型、快速、独立的 SQL（结构化查询语言）数据库引擎。
SQL 语句用于创建、选择、更新和删除一个或多个表中的数据。SQL 允许表之间建立复杂的关系，并提供...
Java Array Sort descending?
... used directly to sort primitive arrays in descending order. If you try to call the Arrays.sort() method by passing reverse Comparator defined by Collections.reverseOrder() , it will throw the error
no suitable method found for sort(int[],comparator)
That will work fine with 'Array of Objects...
Recommended SQL database design for tags or tagging [closed]
...heard of a few ways to implement tagging; using a mapping table between TagID and ItemID (makes sense to me, but does it scale?), adding a fixed number of possible TagID columns to ItemID (seems like a bad idea), Keeping tags in a text column that's comma separated (sounds crazy but could work). I'v...
jQuery find parent form
..., there is a new 'form' attribute which allows you to have the element outside the parent form. This should be checked first.
– mcintyre321
Aug 4 '15 at 11:00
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How to change the Push and Pop animations in a navigation based app
... popping off?)
You must include transitionDuration (trivial) and the main call, animateTransition
In fact you must write two different routines for inside animateTransition. One for the push, and one for the pop. Probably name them animatePush and animatePop. Inside animateTransition, just branc...
How to break out of jQuery each Loop
...ak a $.each or $(selector).each loop, you have to return false in the loop callback.
Returning true skips to the next iteration, equivalent to a continue in a normal loop.
$.each(array, function(key, value) {
if(value === "foo") {
return false; // breaks
}
});
// or
$(selector)...
Removing list of vms in vagrant cache
...
You should use the following command to remove invalid entries from the global index:
vagrant global-status --prune
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Why does C++ require a user-provided default constructor to default-construct a const object?
...ucted base class of T is const-default-constructible.
If a program calls for the default-initialization of an object of a
const-qualified type T, T shall be a const-default-constructible class
type or array thereof.
This wording essentially means that the obvious code works. If you ini...