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On localhost, how do I pick a free port number?
I'm trying to play with inter-process communication and since I could not figure out how to use named pipes under Windows I thought I'll use network sockets. Everything happens locally. The server is able to launch slaves in a separate process and listens on some port. The slaves do their work and s...
How can I have two fixed width columns with one flexible column in the center?
I'm trying to set up a flexbox layout with three columns where the left and right columns have a fixed width, and the center column flexes to fill the available space.
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How can I load an object into a variable name that I specify from an R data file?
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Do saveRDS and readRDS, correspondingly, save and restore all object's attributes, including ones created by an application (via attr)? I tried to use this approach instead of save and load, trying to find a workaround for my problem. H...
Get elements by attribute when querySelectorAll is not available without using libraries?
...
You could write a function that runs getElementsByTagName('*'), and returns only those elements with a "data-foo" attribute:
function getAllElementsWithAttribute(attribute)
{
var matchingElements = [];
var allElements = document.getElementsByTagName('*');
for (var i = 0, n = allEle...
Map over object preserving keys
...h Underscore
Underscore provides a function _.mapObject to map the values and preserve the keys.
_.mapObject({ one: 1, two: 2, three: 3 }, function (v) { return v * 3; });
// => { one: 3, two: 6, three: 9 }
DEMO
With Lodash
Lodash provides a function _.mapValues to map the values and pre...
Execute and get the output of a shell command in node.js
...ode.js, I'd like to find a way to obtain the output of a Unix terminal command. Is there any way to do this?
5 Answers
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Some font-size's rendered larger on Safari (iPhone)
...le of how to apply this to your body, just for the iPhone:
@media screen and (max-device-width: 480px){
body{
-webkit-text-size-adjust: none;
}
}
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Add … if string is too long PHP [duplicate]
I have a description field in my MySQL database, and I access the database on two different pages, one page I display the whole field, but on the other, I just want to display the first 50 characters. If the string in the description field is less than 50 characters, then it won't show ... , but if...
Xcode 5.1 - No architectures to compile for (ONLY_ACTIVE_ARCH=YES, active arch=x86_64, VALID_ARCHS=i
...:
Delete the "Pods" project from the workspace in the left pane of Xcode and close Xcode.
Run "pod install" from the command line to recreate the "Pods" project.
Re-open Xcode and make sure "Build Active Architecture Only" is set to "No" in the build settings of both the "Pods" project and your ow...
Automatic counter in Ruby for each?
I want to use a for-each and a counter:
8 Answers
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