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How to validate date with format “mm/dd/yyyy” in JavaScript?
...sValidDate(dateString)
{
// First check for the pattern
if(!/^\d{1,2}\/\d{1,2}\/\d{4}$/.test(dateString))
return false;
// Parse the date parts to integers
var parts = dateString.split("/");
var day = parseInt(parts[1], 10);
var month = parseInt(parts[0], 10);
va...
Creating range in JavaScript - strange syntax
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264
+1000
Under...
Array extension to remove object by value
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As of Swift 2, this can be achieved with a protocol extension method.
removeObject() is defined as a method on all types conforming
to RangeReplaceableCollectionType (in particular on Array) if
the elements of the collection are Equatabl...
App Inventor 2 中的“2”是什么意思？ - App Inventor 2 中文网 - 清泛IT...
2010年12月App Inventor对外公测，此版本也称为App Inventor 1 或 App Inventor Classic，简称AI1。
2013年12月App Inventor 2发布，简称AI2。
AI两个版本的区别：
1、功能区别：AI1官方不再开发更新，因此功能及新组件没有AI2多。
2、代码编辑...
App Inventor 2 连接调试器的几种方式的比较 - App Inventor 2 中文网 - 清...
...扫二维码测试；否则使用最新版的AIStarter模拟器也可以。2、对于没有安卓手机的或需要一屏展示效果的，建议第二种：使用商业模拟器，速度快，模拟的场景也较AIStarter模拟器多一些。3、对于学生教学场景，功能测试要求不高...
App Inventor 2 自定义拍照及录像媒体文件的路径，进行目录规整 · App Inventor 2 中文网
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App Inventor 2 自定义拍照及录像媒体文件的路径，进行目录规整
App Inventor 2 自定义拍照图片文件的路径
思路
为什么失败？
什么是A...
How to log request and response body with Retrofit-Android?
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92
I used setLogLevel(LogLevel.FULL).setLog(new AndroidLog("YOUR_LOG_TAG")), it helped me.
UPDATE. ...
Is it possible to GROUP BY multiple columns using MySQL?
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296
GROUP BY col1, col2, col3
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Memoization in Haskell?
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259
We can do this very efficiently by making a structure that we can index in sub-linear time.
B...
How to determine the longest increasing subsequence using dynamic programming?
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OK, I will describe first the simplest solution which is O(N^2), where N is the size of the collection. There also exists a O(N log N) solution, which I will describe also. Look here for it at the section Efficient algorithms.
I will assume the indices of the array are from 0 to N - 1...