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How do I compare strings in Java?
...th the safe navigation operator (groovy.codehaus.org/…), ?.. That would convert nullString1?.equals(nullString2); into an entirely null statement. However, it doesn't help if you have validString?.equals(nullString); -- that still throws an exception.
– Charles Wood
...
return query based on date
...we do it all in one shot: new Date(new Date().getTime()-60*5*1000)
...then convert to ISO string: .toISOString()
new Date(new Date().getTime()-60*5*1000).toISOString() gives us 2017-01-14T08:53:17.586Z
Of course this is a little easier with variables if you're using the node-mongodb-native driver,...
How to get a subset of a javascript object's properties
... Is there any function to exclude only certain fields instead of selecting? so I have about 50 fields in my json and want everything except just 2 fields.
– Shrikant Prabhu
Jul 3 '18 at 1:01
...
Process escape sequences in a string in Python
...string, things will go wrong.
unicode_escape is fundamentally designed to convert bytes into Unicode text. But in many places -- for example, Python source code -- the source data is already Unicode text.
The only way this can work correctly is if you encode the text into bytes first. UTF-8 is the...
Configuring IntelliJ IDEA for unit testing with JUnit
...or or by using Ctrl+Shift+T keyboard shortcut.
A dialog appears where you select what testing framework to use and press Fix button for the first time to add the required library jars to the module dependencies. You can also select methods to create the test stubs for.
You can find more detail...
Using NumberPicker Widget with Strings
...wrap true or false, try it you will know the difference
pickers.setWrapSelectorWheel(false);
//create button to test selected text string
btnPicker.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
//get position (int)...
WinDbg基础资料（日本語） - IT优秀资料 - 清泛网 - 专注C/C++及内核技术
...ックする、
「Atach to Process」画面の「Atach to」の「Select..」ボタンをクリックする。
「Select Code Type」画面で、「Debug these code type:」のRadio BoxをCheck ONにして、
「Managed」と「Native」をCheck ONにして、OKボタンで画...
How to retrieve an element from a set without removing it?
...e PEP 20 zealot in me that the most verbose solution is the best. At least converting a set into a list just to extract the first element of the set is as horrible as expected. Thank Guido, may his light continue to guide us.
Surprisingly, the RNG-based solution is absolutely horrible. List convers...
C++ include and import difference
...type libraries or .tlbs (COM stuff).
The content of the type library is converted into C++ classes, mostly describing the COM interfaces for you automatically, and then it is included into your file.
The #import directive was introduced by Microsoft as an extension to the C++ language. You ca...
Plot a bar using matplotlib using a dictionary
...e code does not work with Python 3. For Python 3, the D.keys() needs to be converted to a list.
import matplotlib.pyplot as plt
D = {u'Label1':26, u'Label2': 17, u'Label3':30}
plt.bar(range(len(D)), D.values(), align='center')
plt.xticks(range(len(D)), list(D.keys()))
plt.show()
...