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Properly escape a double quote in CSV
...riginal question doesn't ask about PHP. This only seems to be true for the string delimiter (and only for the chosen delimiter) when a program, such as Open Office, allows you to change it.
– Dave F
Dec 1 '18 at 22:07
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Create Directory When Writing To File In Node.js
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Node <= 10.11.0
You can solve this with a package like mkdirp or fs-extra. If you don't want to install a package, please see Tiago Peres França's answer below.
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How to avoid warning when introducing NAs by coercion
...roblematic characters to NA first. For your particular problem, taRifx::destring does just that. This way if you get some other, unexpected warning out of your function, it won't be suppressed.
> library(taRifx)
> x <- as.numeric(c("1", "2", "X"))
Warning message:
NAs introduced by coerc...
Call PowerShell script PS1 from another PS1 script inside Powershell ISE
...lit-Path : Cannot bind argument to parameter 'Path' because it is an empty string. At line:4 char:25 + $ScriptPath = Split-Path <<<< $MyInvocation.InvocationName + CategoryInfo : InvalidData: (:) [Split-Path], ParameterBindingValidationException + FullyQualifiedErrorId ...
Convert JS object to JSON string
... easily as that:
var j = {
"name": "binchen"
};
console.log(JSON.stringify(j));
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Hiding elements in responsive layout?
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New visible classes added to Bootstrap
Extra small devices
Phones (<768px) (Class names : .visible-xs-block, hidden-xs)
Small devices
Tablets (≥768px) (Class names : .visible-sm-block, hidden-sm)
Medium devices
Desktops (≥992px) (Class names : .visible-md...
Floating point vs integer calculations on modern hardware
...application. If you are developing for the x86 architecture, and you need extra performance, you might want to look into using the SSE extensions. This can greatly speed up single-precision floating point arithmetic, as the same operation can be performed on multiple data at once, plus there is a ...
How to enter a multi-line command
...t is preceded by a valid statement:
return
5
will not work.
Finally, strings (in all varieties) may also extend beyond a single line:
'Foo
bar'
They include the line breaks within the string, then.
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What are these ^M's that keep showing up in my files in emacs?
... fix them yourself.
Edit: I found the following Python sample code here:
string.replace( str, '\r', '' )
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Is there any kind of hash code function in JavaScript?
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JavaScript objects can only use strings as keys (anything else is converted to a string).
You could, alternatively, maintain an array which indexes the objects in question, and use its index string as a reference to the object. Something like this:
var Ob...