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How to get the Full file path from URI
...i, projection, selection, selectionArgs, null);
int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
if (cursor.moveToFirst()) {
return cursor.getString(column_index);
}
} catch (Exception e) {
...
Removing nan values from an array
... everywhere that x is a valid number.
Lastly we use this logical array to index into the original array x, to retrieve just the non-NaN values.
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What does ^M character mean in Vim?
... the case the defaults remap the "special character escape" key it to Ctrl+Q.
– R. Martinho Fernandes
May 1 '11 at 17:45
9
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Git submodule head 'reference is not a tree' error
...s commit that modified the submodule and then reseting the super-project's index to refer to a different submodule commit.
Inside, Out
If you already know which commit you want the submodule to use, cd to the submodule, check out the commit you want, then git add and git commit it back in the supe...
How can I use optional parameters in a T-SQL stored procedure?
...fference, can have massive performance implications. The key is to use an index, ignore compact code, ignore worrying about repeating code, you must make a good query execution plan (use an index).
Read this and consider all the methods. Your best method will depend on your parameters, your data,...
open() in Python does not create a file if it doesn't exist
...losed at the block's end, even if an exception is raised on the way. It's equivalent to try-finally, but much shorter.
with open("file.dat","a+") as f:
f.write(...)
...
a+ Opens a file for both appending and reading. The file pointer is
at the end of the file if the file exists. The ...
编程基础与事件状态 07：同一屏幕组织专注、统计和设置 · App Inventor 2 中文网
...、统计、设置；初始化设置导航项目。
ItemSelected 根据 index 设置三个面板 Visible，统计读取现有记录。
运行任务期间切三页；截止不变。保存有效时长后开始下一项，确认新参数生效。
图来自本课最终工程执行积木后的状...
Access-Control-Allow-Origin wildcard subdomains, ports and protocols
...Leaving it up to each individual user to build their own shim using custom PHP code, rewrite rules, or what-have-you is a recipe for fragmentation, bugs, and disaster. Server devs should know better than that; and if they don't, the CORS spec should force them to.
– aroth
...
How to implement a ConfigurationSection with a ConfigurationElementCollection
...igurationElementCollection
{
public LaneConfigElement this[int index]
{
get { return (LaneConfigElement)BaseGet(index); }
set
{
if (BaseGet(index) != null)
{
BaseRemoveAt(index);
...
Force R not to use exponential notation (e.g. e+10)?
...the appropriate notes. It can be confusing to someone who is looking for a quick solution (and Google shows the first one as the result).
– xbsd
Feb 11 '19 at 21:51
add a comm...