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Stripping out non-numeric characters in string
...round half a second, whereas LINQ consistently was in the 1/10 of a second range. Basically LINQ was 5 or more times faster on average.
– Chris Pratt
Mar 13 '18 at 13:29
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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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Homebrew install specific version of formula?
...mmits/master/Formula/docker.rb
View the file with this button:
Click the Raw button:
Copy the URL (docker.rb url in this example) from address bar
brew install <url> (may have to brew unlink first, e.g. brew unlink docker)
brew switch docker 1.3.3
Switch back to docker 1.4.1 brew switch doc...
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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What does Ruby have that Python doesn't, and vice versa?
... " + "strings " + "together"). Single-quoted strings are like Python’s r"raw strings".
There are no “new style” and “old style” classes. Just one kind.
You never directly access attributes. With Ruby, it’s all method calls.
Parentheses for method calls are usually optional.
There...
Can Protractor and Karma be used together?
... ones you want to mock. This also explains why it is a bad practice to put raw low level services like $http directly inside your controllers or any complicated business logic units. By wrapping those low level outside communication services into smaller dedicated services, you make it much easier t...