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What is the performance cost of having a virtual method in a C++ class?
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104
I ran some timings on a 3ghz in-order PowerPC processor. On that architecture, a virtual functi...
Rails: How to list database tables/objects using the Rails console?
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308
You are probably seeking:
ActiveRecord::Base.connection.tables
and
ActiveRecord::Base.conne...
Using the Underscore module with Node.js
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answered Apr 17 '11 at 10:07
Mike ScottMike Scott
4,34111 gold badge1818 silver badges1212 bronze badges
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Xcode 4 and Core Data: How to enable SQL Debugging
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150
You should be looking at the same place you get NSLOGS
And you should Go to Product -> Edit ...
Reading a delimited string into an array in Bash
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answered Feb 15 '12 at 13:06
kevkev
129k3434 gold badges233233 silver badges253253 bronze badges
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Clearing a string buffer/builder after loop
...ete method as follows:
StringBuffer sb = new StringBuffer();
for (int n = 0; n < 10; n++) {
sb.append("a");
// This will clear the buffer
sb.delete(0, sb.length());
}
Another option (bit cleaner) uses setLength(int len):
sb.setLength(0);
See Javadoc for more info:
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How do I find out which computer is the domain controller in Windows programmatically?
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answered Dec 9 '08 at 20:55
MZywitzaMZywitza
3,06311 gold badge1414 silver badges1111 bronze badges
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Get data from file input in JQuery
...files` property of file inputs.");
}
else if (!input.files[0]) {
alert("Please select a file before clicking 'Load'");
}
else {
var file = input.files[0];
var fr = new FileReader();
fr.onload = receivedText;
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How to list all properties of a PowerShell object
...ist * -Force" to truly see all the error information, for example,
$error[0] | Format-List * -force
Note that the wildcard can be used like a traditional wilcard this:
Get-WmiObject -Class "Win32_computersystem" | Format-List M*
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