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jQuery map vs. each
...back arguments in the map function so be careful.
map(arr, function(elem, index) {});
// versus
each(arr, function(index, elem) {});
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How can you undo the last git add?
...adds since the last commit. git reset without a commit argument resets the index (unstages staged changes):
git reset
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Different types of thread-safe Sets in Java
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1) The CopyOnWriteArraySet is a quite simple implementation - it basically has a list of elements in an array, and when changing the list, it copies the array. Iterations and other accesses which are running at this time continue with the old array, avoiding necessity of synchronization between...
Find nearest value in numpy array
...ray,value):
'''Given an ``array`` , and given a ``value`` , returns an index j such that ``value`` is between array[j]
and array[j+1]. ``array`` must be monotonic increasing. j=-1 or j=len(array) is returned
to indicate that ``value`` is out of range below and above respectively.'''
...
jQuery remove options from select
...n use the following jquery:
var select_object = purchasing_table.rows[row_index].cells[cell_index].childNodes[1];
$(select_object).find('option[value='+site_name+']').remove();
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Choosing a Java Web Framework now? [closed]
...eb application with multiple web sites with similar functionality but radically different look and feel.
17 Answers
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How do I prevent node.js from crashing? try-catch doesn't work
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Other answers are really insane as you can read at Node's own documents at http://nodejs.org/docs/latest/api/process.html#process_event_uncaughtexception
If someone is using other stated answers read Node Docs:
Note that uncaughtException i...
Output data from all columns in a dataframe in pandas [duplicate]
...on.
paramdata.columns
stores the respective column names and
paramdata.index
stores the respective index (row names).
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Entity Framework: table without primary key
...nsert records ASAP. Having PK can be an issue when checking uniqueness and indexing happens. Also If your PK is IDENTITY so returning the generated value to the EF is another issue. using GUID instead? generation time and indexing/sorting is another issue!...SO IN some critical OLTP senarios(like Lo...
How to get a complete list of ticker symbols from Yahoo Finance? [closed]
...he list by iterating through the alphabetical groups:
AlphabeticIDIndexDownload dl1 = new AlphabeticIDIndexDownload();
dl1.Settings.TopIndex = null;
Response<AlphabeticIDIndexResult> resp1 = dl1.Download();
writeStream.WriteLine("Id|Isin|Name|Exchange|Type|Ind...