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Get yesterday's date using Date [duplicate]
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Then, modify your method to the following:
private String getYesterdayDateString() {
DateFormat dateFormat = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss");
return dateFormat.format(yesterday());
}
See
IDEOne Demo
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What is a elegant way in Ruby to tell if a variable is a Hash or an Array?
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If you want to test if an object is strictly or extends a Hash, use:
value = {}
value.is_a?(Hash) || value.is_a?(Array) #=> true
But to make value of Ruby's duck typing, you could do something like:
value = {}
value.respond_to?(:[]) ...
jQuery to loop through elements with the same class
I have a load of divs with the class testimonial and I want to use jquery to loop through them to check for each div if a specific condition is true. If it is true, it should perform an action.
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Is there an online name demangler for C++? [closed]
...demangler cannot demangle ref qualifiers for Itanium. I am looking at _ZNR4test1fEv generated by Clang.
– Puppy
Jun 20 '14 at 20:53
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Best practice for Python assert
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Asserts should be used to test conditions that should never happen. The purpose is to crash early in the case of a corrupt program state.
Exceptions should be used for errors that can conceivably happen, and you should almost always create your own ...
How to determine if one array contains all elements of another array
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@CubaLibre Interesting. Do you have some test data to reproduce this? Fom my tests it seemed as if the resulting array retains the order of elements from the first array (hence my most recent edit to my answer). However, if this is indeed not the case, I'd like to l...
Adding a legend to PyPlot in Matplotlib in the simplest manner possible
...ot() calls, and then call legend(loc='upper left').
Consider this sample (tested with Python 3.8.0):
import numpy as np
import matplotlib.pyplot as plt
x = np.linspace(0, 20, 1000)
y1 = np.sin(x)
y2 = np.cos(x)
plt.plot(x, y1, "-b", label="sine")
plt.plot(x, y2, "-r", label="cosine")
plt.legend(...
Opening port 80 EC2 Amazon web services [closed]
...to your instance using security group rules." docs.aws.amazon.com/AWSEC2/latest/WindowsGuide/…
– foxontherock
Apr 21 '16 at 18:20
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What is Java String interning?
... why you get equals! if you execute the below piece of code.
String s1 = "testString";
String s2 = "testString";
if(s1 == s2) System.out.println("equals!");
If you want to compare Strings you should use equals(). The above will print equals because the testString is already interned for you by t...
Can someone explain Microsoft Unity?
...our class to a specific concrete version of the IMyService, you can't unit test it easily, you can't change it easily, etc.)
With an IoC container you "configure" the container to resolve those dependencies for you. So with a constructor-based injection scheme, you just pass the interface to the IM...