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What's the difference between backtracking and depth first search?
... and eliminate it, then backtrack to the next possible move, eliminate it, etc.
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Is False == 0 and True == 1 an implementation detail or is it guaranteed by the language?
...s to strings and number values, using == or != or <, > >=, <=, etc.
You can assign an integer to a variable and then get true or false based on that variable value.
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Best way to define error codes/strings in Java?
...blic String getDescription() {
return description;
}
public int getCode() {
return code;
}
@Override
public String toString() {
return code + ": " + description;
}
}
You may want to override toString() to just return the description instead - not sure. Anyway, the main p...
this.setState isn't merging states as I would expect
...l, which are lost.
When queue is empty, React determines whether to render etc. At this point you will render the changes made in the second setState call, and it will be as though the first setState call never happened.
If you need to use the current state (e.g. to merge data into a nested object...
How to keep environment variables when using sudo
...
Notice that you should never edit the etc/sudoers directly. Instead, use the visudo command, which syntax-checks your edits before overwriting the sudoers file. That way, you don't lock yourself out if you make a mistake while editing.
– Hen...
Java optional parameters
...e optional parameter, but you would need to check the length of the array, etc. so it's not super clean :| If you want "one parameter" optional parameter then you may as well just declare two methods (one overloaded doSomething() { doSomething(true); } no arrays to deal with, no ambiguity
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n-grams in python, four, five, six grams?
... click here
And when you just need a specific gram like bigram or trigram etc you can use the nltk.util.ngrams as mentioned in M.A.Hassan's answer.
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Unsupported major.minor version 52.0 [duplicate]
... up as a separate task.
Also, put all above environment variables in the /etc/environment file for auto loading on system boot.
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Only read selected columns
...ion and as a result, unconstrained. You will need to filter out blank rows etc upon import.
– Gavin Simpson
May 15 '17 at 18:53
1
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Why does .NET foreach loop throw NullRefException when collection is null?
...an be extended further in interesting ways (for loops, reversing, leaping, etc). Thanks for sharing.
– Lara
Feb 16 '17 at 17:08
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