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Getting and removing the first character of a string
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170
See ?substring.
x <- 'hello stackoverflow'
substring(x, 1, 1)
## [1] "h"
substring(x, 2)
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In which order should floats be added to get the most precise result?
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11 Answers
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How to store standard error in a variable
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18 Answers
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Add st, nd, rd and th (ordinal) suffix to a number
...ate a string of text based on a current day. So, for example, if it is day 1 then I would like my code to generate = "Its the 1* st *".
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How can I pipe stderr, and not stdout?
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11 Answers
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Why do we need tuples in Python (or any immutable data type)?
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124
immutable objects can allow substantial optimization; this is presumably why strings are also...
How do I declare and initialize an array in Java?
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For primitive types:
int[] myIntArray = new int[3];
int[] myIntArray = {1, 2, 3};
int[] myIntArray = new int[]{1, 2, 3};
// Since Java 8. Doc of IntStream: https://docs.oracle.com/javase/8/docs/api/java/util/stream/IntStream.html
int [] myIntArray = IntStream.range(0, 100).toArray(); // From 0 ...
Export database schema into SQL file
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150
You can generate scripts to a file via SQL Server Management Studio, here are the steps:
Rig...
Why is “int i = 2147483647 + 1;” OK, but “byte b = 127 + 1;” is not compilable?
Why is int i = 2147483647 + 1; OK, but byte b = 127 + 1; is not compilable?
4 Answers
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Correct way to populate an Array with a Range in Ruby
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You can create an array with a range using splat,
>> a=*(1..10)
=> [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
using Kernel Array method,
Array (1..10)
=> [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
or using to_a
(1..10).to_a
=> [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
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