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Convert integer into its character equivalent, where 0 => a, 1 => b, etc
...7 with 65 (uppercase 'A'). Note that if n > 25, you will get out of the range of letters.
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Converting a List to a comma separated string
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Seems reasonablly fast.
IList<int> listItem = Enumerable.Range(0, 100000).ToList();
var result = listItem.Aggregate<int, StringBuilder, string>(new StringBuilder(), (strBuild, intVal) => { strBuild.Append(intVal); strBuild.Append(","); return strBuild; }, (strBuild) => ...
How to sort an array based on the length of each element?
... list(d.values())
b.sort()
c = []
for i in b:
for j in range(num):
if j in list(d.keys()):
if d[j] == i:
c.append(a[j])
d.pop(j)
return c
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Round a Floating Point Number Down to the Nearest Integer?
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and does not work for number beyond the integer range such as 600851475143, it will basically flag a memory error.
– Muyide Ibukun
Jan 20 '16 at 15:26
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How to insert a text at the beginning of a file?
...oldfile > newfile
I've included the latter so that you know how to do ranges of lines. Both of these "replace" the start line marker on their affected lines with the text you want to insert. You can also (assuming your sed is modern enough) use:
sed -i 'whatever command you choose' filename
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Convert Json Array to normal Java list
...y array = new JSONArray(jsonString);
List<String> result = IntStream.range(0, array.length())
.mapToObj(array::get)
.map(Object::toString)
.collect(Collectors.toList());
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Saving timestamp in mysql table using php
... you, and the other way with strtotime. edit: btw, timestamp only covers a range of all possible dates (1970-01-01 to xx-xx-2032 I think)
– Carlos Campderrós
Apr 12 '11 at 8:58
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Show diff between commits
... the resulting diff.
git diff compares two endpoints (instead of a commit range).
Since the OP want to see the changes introduced by k73ud, he/she needs to difference between the first parent commit of k73ud: k73ud^ (or k73ud^1 or k73ud~).
That way, the diff results will include changes since k73u...
UnicodeDecodeError: 'utf8' codec can't decode byte 0xa5 in position 0: invalid start byte
...ASCII you should just encode everything. For characters in the 7-bit ASCII range this encoding will be an identity mapping.
– Tadeusz A. Kadłubowski
Mar 6 '14 at 7:47
35
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How to reset sequence in postgres and fill id column with new data?
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FYI: If you need to specify a new startvalue between a range of IDs (256 - 10000000 for example):
SELECT setval('"Sequence_Name"',
(SELECT coalesce(MAX("ID"),255)
FROM "Table_Name"
WHERE "ID" < 10000000 and "ID" >= 256)+1
);
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