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How to define a two-dimensional array?
...w, h = 8, 5;
Matrix = [[0 for x in range(w)] for y in range(h)]
You can now add items to the list:
Matrix[0][0] = 1
Matrix[6][0] = 3 # error! range...
Matrix[0][6] = 3 # valid
Note that the matrix is "y" address major, in other words, the "y index" comes before the "x index".
print Matrix[0]...
How to pass command line arguments to a shell alias? [duplicate]
...o whatever you pass after that alias is ALSO passed on the command line. If you try this set -x; alias serve="python -m SimpleHTTPServer $1 &" you will see the error/problem. Both your argument and the alias command are run as separate commands.
– PatS
F...
Xcode 'Build and Archive' menu item disabled
...cause for some reason the build configuration was set to MAC 64 bit (dont know how it got there...) , returned it to IOS and it got enabled again.
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How to delay the .keyup() handler until the user stops typing?
I’ve got a search field. Right now it searches for every keyup. So if someone types “Windows”, it will make a search with AJAX for every keyup: “W”, “Wi”, “Win”, “Wind”, “Windo”, “Window”, “Windows”.
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How to add a WiX custom action that happens only on uninstall (via MSI)?
I would like to modify an MSI installer (created through WiX ) to delete an entire directory on uninstall.
6 Answers
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New Array from Index Range Swift
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#1. Using Array subscript with range
With Swift 5, when you write…
let newNumbers = numbers[0...position]
… newNumbers is not of type Array<Int> but is of type ArraySlice<Int>. That's because Array's subscript(_:) returns an ArraySlice<Element...
Local variables in nested functions
...free' variables (not defined in the function itself by assignment), are verified, then bound as closure cells to the function, with the code using an index to reference each cell. pet_function thus has one free variable (cage) which is then referenced via a closure cell, index 0. The closure itself ...
How to get nice formatting in the Rails console
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Its now YAML::ENGINE.yamler = 'psych'
– jumpa
Dec 5 '13 at 5:53
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How does a public key verify a signature?
... key to obtain a message, supposedly the same message as (1) but we don't know yet. We now have two messages that we need to verify are identical. So to do this, we will encrypt them both with our public key and compare the two hashes. So we will ....
Encrypt the original message (1) with the public...
Can someone explain how to implement the jQuery File Upload plugin?
...ppendTo(ul);
// Initialize the knob plugin. This part can be ignored, if you are showing progress in some other way.
tpl.find('input').knob();
// Listen for clicks on the cancel icon
tpl.find('span').click(function(){
if(tpl.hasClass('working')){
jqXHR.abort();
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