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Where is JAVA_HOME on macOS Mojave (10.14) to Lion (10.7)?
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1062
With the Java optional package or Oracle JDK installed,
adding one of the following lines t...
Does the default constructor initialize built-in types?
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community wiki
10 revs, 5 users 87%AnT
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Deleting DataFrame row in Pandas based on column value
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10 Answers
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0.1 float is greater than 0.1 double. I expected it to be false [duplicate]
...its of precision, and double has 53. In binary, 0.1 is:
0.1₁₀ = 0.0001100110011001100110011001100110011001100110011…₂
^ ^ ^ ^
1 10 20 24
So if we round up at the 24th digit, we'll get
0.1₁₀ ~ 0.000110011001100110011001101
wh...
Converting bytes to megabytes
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edited Mar 2 '10 at 17:21
Cory Petosky
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Using Linq to get the last N elements of a collection?
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answered Aug 10 '10 at 20:48
kbrimingtonkbrimington
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how does array[100] = {0} set the entire array to 0?
How does the compiler fill values in char array[100] = {0}; ? What's the magic behind it?
4 Answers
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Centering a background image, using CSS
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310
background-image: url(path-to-file/img.jpg);
background-repeat:no-repeat;
background-position: ...
Converting an integer to a hexadecimal string in Ruby
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You can give to_s a base other than 10:
10.to_s(16) #=> "a"
Note that in ruby 2.4 FixNum and BigNum were unified in the Integer class.
If you are using an older ruby check the documentation of FixNum#to_s and BigNum#to_s
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Can I grep only the first n lines of a file?
...e very long log files, is it possible to ask grep to only search the first 10 lines?
12 Answers
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