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Convert Elixir string to integer or float
...o_integer works nicely but String.to_float is tougher:
iex()> "1 2 3 10 100" |> String.split |> Enum.map(&String.to_integer/1)
[1, 2, 3, 10, 100]
iex()> "1.0 1 3 10 100" |> String.split |> Enum.map(&String.to_float/1)
** (ArgumentError) argument error
:erlang.binary_to...
Python list directory, subdirectory, and files
...allFiles+=[os.path.join(folder,file)]
return allFiles
for i in range(100): files = listFiles1("src") # warm up
start = time.time()
for i in range(100): files = listFiles1("src") # listdir
print("Time taken: %.2fs"%(time.time()-start)) # 0.28s
start = time.time()
for i in range(100): files = ...
How to add text inside the doughnut chart using Chart.js?
...Config.sidePadding || 20;
var sidePaddingCalculated = (sidePadding / 100) * (chart.innerRadius * 2)
// Start with a base font of 30px
ctx.font = "30px " + fontStyle;
// Get the width of the string and also the width of the element minus 10 to give it 5px side padding
v...
Pickle or json?
...SON being faster is outdated by a few years. stackoverflow.com/a/39607169/1007353
– JDiMatteo
Sep 22 '16 at 1:34
|
show 3 more comments
...
Which is more preferable to use: lambda functions or nested functions ('def')?
...ll me what this does:
str(reduce(lambda x,y:x+y,map(lambda x:x**x,range(1,1001))))[-10:]
I wrote it, and it took me a minute to figure it out. This is from Project Euler - i won't say which problem because i hate spoilers, but it runs in 0.124 seconds :)
...
Block Comments in a Shell Script
...sing vi (yes, vi) you can easily comment from line n to m
<ESC>
:10,100s/^/#/
(that reads, from line 10 to 100 substitute line start (^) with a # sign.)
and un comment with
<ESC>
:10,100s/^#//
(that reads, from line 10 to 100 substitute line start (^) followed by # with noting /...
Oracle 11.2.0.4 RAC FOR redhat 6.4 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
...st localhost.localdomain localhost6 localhost6.localdomain6
172.16.110.100 dmjyrac1
172.16.110.101 dmjyrac1-vip
172.16.110.110 dmjyrac2
172.16.110.111 dmjyrac2-vip
172.16.110.102 dmjyrac-cluster dmjyrac-cluster-scan
10.10.120.100 dmjyrac1-priv
10.10.120.110 dmjyr...
Site stopped working in asp.net System.Web.WebPages.Razor.Configuration.HostSection cannot be cast t
...rsions. Cheers!
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
<!--some more bidings-->
<dependentAssembly>
<assemblyIdentity name="System.Web.WebPages.Razor"
publicKeyToken="31bf3856ad364e35" />
<bindingRedirect oldVersion="1....
How do I manage conflicts with git submodules?
...ubmodule, when you merge changes from master git does not know which ref - v1.0 or v1.1 - should be kept and tracked by the one.one branch of supery.
If that is the case, then you need to select the ref that you want and commit that change to resolve the conflict. Which is exactly what you are doin...
C++ performance challenge: integer to std::string conversion
...lt;0);
unsigned int val = (n^sign)-sign;
int size;
if(val>=10000)
{
if(val>=10000000)
{
if(val>=1000000000)
size=10;
else if(val>=100000000)
size=9;
else
size=8;
...