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Add Foreign Key to existing table
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Reasons help me understand and remember. This is because you can't add a foreign key to an non-unsigned field, correct?
– PixMach
Sep 28 '15 at 21:25
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How do you include Xml Docs for a class library in a NuGet package?
I am creating a NuGet package for a C# class library, and I would like to include generated Xml Documentation with the library. This is my nuspec file:
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if…else within JSP or JSTL
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Should I use JSTL ?
Yes.
You can use <c:if> and <c:choose> tags to make conditional rendering in jsp using JSTL.
To simulate if , you can use:
<c:if test="condition"></c:if>
To simulate if...else, you can use:
<c:choose>
<c:when test...
How do I read the source code of shell commands?
I would like to read the actual source code which the linux commands are written with. I've gained some experience using them and now I think it's time to interact with my machine at a deeper level.
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Left padding a String with Zeros [duplicate]
I've seen similar questions here and here .
20 Answers
20
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How to check if an int is a null
.... you need to do
if (person != null){ // checks if person is not null
}
and
if(person.equals(null))
The above code would throw NullPointerException when person is null.
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CSS Input Type Selectors - Possible to have an “or” or “not” syntax?
...syntax. At the time this question was asked, we needed a fall-back for IE7 and IE8. One option was to use a polyfill like IE9.js. Another was to exploit the cascade in CSS:
input {
// styles for most inputs
}
input[type=checkbox] {
// revert back to the original style
}
input.checkbox {
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Indexes of all occurrences of character in a string
...e final result, this seems to output -1 at the end an I don't quite understand why! thanks!!
– Trufa
Feb 17 '11 at 20:55
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How can I replace a regex substring match in Javascript?
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I would get the part before and after what you want to replace and put them either side.
Like:
var str = 'asd-0.testing';
var regex = /(asd-)\d(\.\w+)/;
var matches = str.match(regex);
var result = matches[1] + "1" + matches[2];
// With ES6:
var ...
Make maven's surefire show stacktrace in console
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You can use the following command to see the stack trace on console instead of report files in the target/surefire-reports folder:
mvn -Dsurefire.useFile=false test
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