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How to find whether or not a variable is empty in Bash
...fic situation not directly mentioned in the question: if the variable is unset and the set -u option has been activated, this test will fail with unbound variable. In this case, you might prefer @alexli's solution.
– anol
May 26 '15 at 16:34
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How to check if an object is serializable in C#
...may be overkill in some cases though were serialization is not expected to set some members: stackoverflow.com/questions/236599/…
– VoteCoffee
May 18 at 12:12
add a comment
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How to Implement DOM Data Binding in JavaScript
...tElementById("foo"), "20");
// simulate some JS based changes.
var i = 0;
setInterval(function() {
obj.change(parseInt(obj.element.value) + ++i);
}, 3000);
DEMO: http://jsfiddle.net/RkTMD/
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WheelView 拓展：滚轮选择框扩展，滚轮日历选择框和旋转日历扩展 · App In...
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WheelView, like number picker, but can be any strings.
original code from WheelView: 效果类似android4.0以上原生的DatePicker 18
Thanks @wildcontrol to sponsor this extension
Demo picture:
this demo used 3 extensions
Download link here;
aix拓展
cn.kevinkun.WheelView.aix
demo
W...
What is sharding and why is it important?
...izontal partitioning is a less specific term, of which "Sharding" is a subset. Again using mySQL as an example, a mySQL partition is handled by a single db instance, which is 100% transparent to the application. A sharding approach would involve either a proxy or an application that intelligently c...
Import package.* vs import package.SpecificType [duplicate]
...ports list small so I can tell what is going on at a glance. To do this, I set the threshold at 4 classes. Above that, Eclipse will use * for my code. I find this keeps my package imports readable, and I tend to refer to them as the first thing I do when I look at a class, to answer the question: Wh...
Can I change the fill color of an svg path with CSS?
I have the following code:
8 Answers
8
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What is a “batch”, and why is GO used?
...ot sure about what Oracle does), signalling to the client program that the set of commands that were input into it up till the "go" need to be sent to the server to be executed.
Why/when do you need it?
GO in MS SQL server has a "count" parameter - so you can use it as a "repeat N times" shortcut.
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Handling JSON Post Request in Go
So I have the following, which seems incredibly hacky, and I've been thinking to myself that Go has better designed libraries than this, but I can't find an example of Go handling a POST request of JSON data. They are all form POSTs.
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In a Git repository, how to properly rename a directory?
...):
git mv <old name> <new name>
Case sensitive rename—eg. from casesensitive to CaseSensitive—you must use a two step:
git mv casesensitive tmp
git mv tmp CaseSensitive
(More about case sensitivity in Git…)
…followed by commit and push would be the simplest way to rename a...