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What is the recommended way to delete a large number of items from DynamoDB?
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What I ideally want to do is call LogTable.DeleteItem(user_id) -
Without supplying the range, and have it delete everything for me.
An understandable request indeed; I can imagine advanced operations like these might get added over...
parseInt(null, 24) === 23… wait, what?
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It's converting null to the string "null" and trying to convert it. For radixes 0 through 23, there are no numerals it can convert, so it returns NaN. At 24, "n", the 14th letter, is added to the numeral system. At 31, "u", the 21st letter, is added and...
Limit file format when using ?
...tioned here, but is not the default in the dropdown. The default filter is All files (*).]
You can also use asterisks in MIME-types. For example:
<input type="file" accept="image/*" /> <!-- all image types -->
<input type="file" accept="audio/*" /> <!-- all audio types --&g...
Static Vs. Dynamic Binding in Java
...le in Java
public class StaticBindingTest {
public static void main(String args[]) {
Collection c = new HashSet();
StaticBindingTest et = new StaticBindingTest();
et.sort(c);
}
//overloaded method takes Collection argument
public Collection sort(Collection ...
Cannot make a static reference to the non-static method
...ding a multi-language application in Java. Getting an error when inserting String value from R.string resource XML file:
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Accept server's self-signed ssl certificate in Java client
...eckClientTrusted(
java.security.cert.X509Certificate[] certs, String authType) {
}
public void checkServerTrusted(
java.security.cert.X509Certificate[] certs, String authType) {
}
}
};
// Install the all-trusting trust manager
try {
S...
Can you animate a height change on a UITableViewCell when selected?
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I found a REALLY SIMPLE solution to this as a side-effect to a UITableView I was working on.....
Store the cell height in a variable that reports the original height normally via the tableView: heightForRowAtIndexPath:, then when you wa...
What does @: (at symbol colon) mean in a Makefile?
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It means "don't echo this command on the output." So this rule is saying "execute the shell command : and don't echo the output.
Of course the shell command : is a no-op, so this is saying "do nothing, and don't tell."
Why?
The trick here is that you'...
How to obtain the last path segment of a URI
I have as input a string that is a URI . how is it possible to get the last path segment (that in my case is an id)?
12 An...
How can I programmatically determine if my app is running in the iphone simulator?
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Watch the #if and #ifdef difference. For me it was the cause of incorrect behavior.
– Anton
Jan 9 '10 at 9:32
7
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