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Why aren't variables declared in “try” in scope in “catch” or “finally”?
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Timo Tijhof
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answered Sep 18 '08 at 18:01
John ChristensenJohn Christensen
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How do I calculate the date in JavaScript three months prior to today?
... works for January. Run this snippet:
var d = new Date("January 14, 2012");
console.log(d.toLocaleDateString());
d.setMonth(d.getMonth() - 3);
console.log(d.toLocaleDateString());
There are some caveats...
A month is a curious thing. How do you define 1 month? 30 days? Most peo...
What's “wrong” with C++ wchar_t and wstrings? What are some alternatives to wide characters?
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+50
What is wchar_t?
wchar_t is defined such that any locale's char encoding can be converted to a wchar_t representation where every wch...
Skip first entry in for loop in python?
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answered Apr 9 '12 at 20:17
agfagf
140k3232 gold badges260260 silver badges222222 bronze badges
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使用Activity启动器组件 · App Inventor 2 中文网
...n
使用预先指定的消息启动邮件程序
2020 年 1 月 26 日：此示例已更新以适应 android 中的更改。 此处显示的电子邮件发送代码将在下一个应用程序发明者版本中运行，但尚未运行。
要启动 Android 邮件程序应用...
How to Validate a DateTime in C#?
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270
DateTime.TryParse
This I believe is faster and it means you dont have to use ugly try/catches ...
Is there a query language for JSON?
...have different conceptual models (hierarchic vs object/struct).
EDIT Sep-2015: Actually there is now JSON Pointer standard that allows very simple and efficient traversal of JSON content. It is not only formally specified, but also supported by many JSON libraries. So I would call it actual real us...
How to design a product table for many kinds of product where each product has many parameters
...is overkill. Class Table Inheritance would be my first choice.
Update 2019: The more I see people using JSON as a solution for the "many custom attributes" problem, the less I like that solution. It makes queries too complex, even when using special JSON functions to support them. It takes a lot...
Getting a list of associative array keys
...Object.keys(obj)
Example:
var dictionary = {
"cats": [1, 2, 37, 38, 40, 32, 33, 35, 39, 36],
"dogs": [4, 5, 6, 3, 2]
};
// Get the keys
var keys = Object.keys(dictionary);
console.log(keys);
See reference below for browser support. It is supported in Firefox 4.20, Chrome 5, and Inter...
Why does git perform fast-forward merges by default?
...itched to branch 'develop'
$ git merge --no-ff myfeature
Updating ea1b82a..05e9557
(Summary of changes)
$ git branch -d myfeature
Deleted branch myfeature (was 05e9557).
$ git push origin develop
The --no-ff flag causes the merge to always create a new commit object, even if the merge could be ...