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Measure and Benchmark Time for Ruby Methods
...justments to the system clock, so it's a best practice to use Process.clock_gettime(Process::CLOCK_MONOTONIC) instead. But for rough calculations this doesn't matter. blog.dnsimple.com/2018/03/elapsed-time-with-ruby-the-right-way
– Patrick Brinich-Langlois
Feb ...
Import multiple csv files into pandas and concatenate into one DataFrame
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If you have same columns in all your csv files then you can try the code below.
I have added header=0 so that after reading csv first row can be assigned as the column names.
import pandas as pd
import glob
path = r'C:\DRO\DCL_rawdata_files' # use you...
Case insensitive replace
...ld be useful if the to-replace value was passed into a function, so it's really more of a good example than anything else.
– Blair Conrad
Nov 9 '14 at 23:19
2
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In PowerShell, how do I define a function in a file and call it from the PowerShell commandline?
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What you are talking about is called dot sourcing. And it's evil. But no worries, there is a better and easier way to do what you are wanting with modules (it sounds way scarier than it is). The major benefit of using modules is that you can unload them fr...
Reset Entity-Framework Migrations
... I used IgnoreChanges on the initial migration, but now I want to delete all my migrations and start with an initial migration with all of the logic.
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How to set focus on input field?
...nction ($timeout, $parse) {
return {
//scope: true, // optionally create a child scope
link: function (scope, element, attrs) {
var model = $parse(attrs.focusMe);
scope.$watch(model, function (value) {
console.log('value=', value);
...
Compelling examples of custom C++ allocators?
What are some really good reasons to ditch std::allocator in favor of a custom solution? Have you run across any situations where it was absolutely necessary for correctness, performance, scalability, etc? Any really clever examples?
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How to get started on TDD with Ruby on Rails? [closed]
...the concepts (took testing classes in college), but I am not sure how to really use them yet since I never worked on a "real" TDD project.
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When do you use the “this” keyword? [closed]
...declare extension methods
To pass parameters between constructors
To internally reassign value type (struct) value.
To invoke an extension method on the current instance
To cast itself to another type
To chain constructors defined in the same class
You can avoid the first usage by not having membe...
How to index characters in a Golang string?
...)) and may reconvert the string on each iteration for, O(n²). Just do for _, r := range word { fmt.Printf("%c", r) }. If you really wanted to loop with an index for x := 0; x < limit; x++. Please learn the basics of a language before answering questions.
– Dave C
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