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Handling optional parameters in javascript
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You can know how many arguments were passed to your function and you can check if your second argument is a function or not:
function getData (id, parameters, callback) {
if (arguments.length == 2) { // if only two arguments were s...
How do you append an int to a string in C++? [duplicate]
...d::ostringstream oss;
oss << a << b;
return oss.str();
}
Now, as long as object b has a defined stream output, you can append it to your string (or, at least, a copy thereof).
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What's a good (free) visual merge tool for Git? (on windows) [closed]
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On Windows, a good 3-way diff/merge tool remains kdiff3 (WinMerge, for now, is still 2-way based, pending WinMerge3)
See "How do you merge in GIT on Windows?" and this config.
Update 7 years later (Aug. 2018): Artur Kędzior mentions in the comments:
If you guys happen to use Visual Studio ...
PreparedStatement with list of parameters in a IN clause [duplicate]
...the select string (the 'IN (?)' part) by a simple for loop as soon as you know how many values you need to put inside the IN clause. You can then instantiate the PreparedStatement.
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How do I invert BooleanToVisibilityConverter?
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Write your own is the best solution for now. Here is an example of a Converter that can do both way Normal and Inverted. If you have any problems with this just ask.
[ValueConversion(typeof(bool), typeof(Visibility))]
public class InvertableBooleanToVisibilityConv...
How can I reverse the order of lines in a file?
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There's the well-known sed tricks:
# reverse order of lines (emulates "tac")
# bug/feature in HHsed v1.5 causes blank lines to be deleted
sed '1!G;h;$!d' # method 1
sed -n '1!G;h;$p' # method 2
(Explanation: prepen...
How can I index a MATLAB array returned by a function without first assigning it to a local variable
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well what do you know! though i agree it's pretty ugly, and probably less readable than a temp-var solution. +1 for impressive obscure matlab knowledge!
– second
Sep 2 '10 at 16:02
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ssh: Could not resolve hostname [hostname]: nodename nor servname provided, or not known
...rent for different routers though, so look up directions for your router.
Now, when I am outside of my home network I connect to my pi by typing:
ssh pi@[hostname]
Then I am able to input my password and connect.
sh...
angular js unknown provider
I'm trying to "customize" the mongolab example to fit my own REST API. Now I'm running into this error and I am not sure what I am doing wrong:
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Set Page title using UI-Router
...nother way of doing this by combining most of the answers here already. I know this is already answered but I wanted to show the way I dynamically change page titles with ui-router.
If you take a look at ui-router sample app, they use the angular .run block to add the $state variable to $rootScope....