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Sending data back to the Main Activity in Android
...eturn Intent. The data is extracted using a key-value pair.
MainActivity.java
public class MainActivity extends AppCompatActivity {
private static final int SECOND_ACTIVITY_REQUEST_CODE = 0;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedI...
What is a mixin, and why are they useful?
...xins only exist in multiple-inheritance languages. You can't do a mixin in Java or C#.
Basically, a mixin is a stand-alone base type that provides limited functionality and polymorphic resonance for a child class. If you're thinking in C#, think of an interface that you don't have to actually impl...
How to run cron job every 2 hours
... crontab :
crontab -e
write this into the file:
0 */2 * * * python/php/java yourfilepath
Example :0 */2 * * * python ec2-user/home/demo.py
and make sure you have keep one blank line after the last cron job in your crontab file
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How to add target=“_blank” to JavaScript window.location?
...2f%2fstackoverflow.com%2fquestions%2f18476373%2fhow-to-add-target-blank-to-javascript-window-location%23new-answer', 'question_page');
}
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Generate a Hash from string in Javascript
I need to convert strings to some form of hash. Is this possible in JavaScript?
22 Answers
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HQL ERROR: Path expected for join
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Deprecated ManagedQuery() issue
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How to hide a View programmatically?
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Check whether variable is number or string in JavaScript
... anyone know how can I check whether a variable is a number or a string in JavaScript?
32 Answers
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Meaning of …interface{} (dot dot dot interface)
...nterface implemented by all variables in Go.
This is sort of analogous to java.lang.Object or System.Object in C#, but is instead inclusive of every variable type in the language. So it lets you pass in anything to the method.
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