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Array.push() if does not exist?
... it doesn't then just push the item into the array:
var newItem = "NEW_ITEM_TO_ARRAY";
var array = ["OLD_ITEM_1", "OLD_ITEM_2"];
array.indexOf(newItem) === -1 ? array.push(newItem) : console.log("This item already exists");
console.log(array)
...
How to do URL decoding in Java?
... {
String result = java.net.URLDecoder.decode(url, StandardCharsets.UTF_8.name());
} catch (UnsupportedEncodingException e) {
// not going to happen - value came from JDK's own StandardCharsets
}
Java 10 added direct support for Charset to the API, meaning there's no need to catch Unsuppor...
Identify if a string is a number
...ld use double.TryParse, since we want to know if it represents a number at all.
– John Gietzen
May 21 '09 at 18:31
6
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Not equal != operator on NULL
...dicates for such situations.
This behavior is not specific to SQL Server. All standards-compliant SQL dialects work the same way.
Note: To compare if your value is not null, you use IS NOT NULL, while to compare with not null value, you use <> 'YOUR_VALUE'. I can't say if my value equals or ...
How do you explicitly set a new property on `window` in TypeScript?
...2, no need for .d.ts file as mentioned above
– tanguy_k
Sep 3 '17 at 20:29
6
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Extracting extension from filename in Python
...
@klingt.net Well, in that case, .asd is really the extension!! If you think about it, foo.tar.gz is a gzip-compressed file (.gz) which happens to be a tar file (.tar). But it is a gzip file in first place. I wouldn't expect it to return the dual extension at all.
...
What is the real overhead of try/catch in C#?
... to make here:
Firstly, there is little or NO performance penalty in actually having try-catch blocks in your code. This should not be a consideration when trying to avoid having them in your application. The performance hit only comes into play when an exception is thrown.
When an exception is th...
VS2005中SetUnhandledExceptionFilter函数应用 - C/C++ - 清泛网 - 专注C/C++及内核技术
...在以下三种情况出现。
（1）调用abort函数，并且设置了_CALL_REPORTFAULT选项（这个选项在Release版本是默认设置的）。
（2）启用了运行时安全检查选项，并且在软件运行时检查出安全性错误，例如出现缓存溢出。（安全检查选项 ...
Sleep until a specific time/date
...
Thanks for that, I wrote a small shell-script to get a "sleepuntil" command.
– theomega
Mar 14 '09 at 15:20
1
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Java Security: Illegal key size or default parameters?
...
Most likely you don't have the unlimited strength file installed now.
You may need to download this file:
Java Cryptography Extension (JCE) Unlimited Strength Jurisdiction Policy Files 6
Java Cryptography Extension (JCE) Unlimited Strength Jurisdiction Policy Files 7 Download
Ja...