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Formatting a number with exactly two decimals in JavaScript
...); // Returns 1.27
This genericity also provides some cool stuff:
round(1234.5678, -2); // Returns 1200
round(1.2345678e+2, 2); // Returns 123.46
round("123.45"); // Returns 123
Now, to answer the OP's question, one has to type:
round(10.8034, 2).toFixed(2); // Returns "10.80"
round...
How do I use shell variables in an awk script?
...f the environment variable ("${v}"):
% awk -vv="${v}" 'BEGIN { print v }'
123test
Or to make it clearer (with far fewer vs):
% environment_variable=123test
% awk -vawk_variable="${environment_variable}" 'BEGIN { print awk_variable }'
123test
...
Collisions when generating UUIDs in JavaScript?
...
Mark Amery
98.9k4848 gold badges336336 silver badges379379 bronze badges
answered Aug 25 '11 at 4:49
broofabroof...
Why does Javascript getYear() return 108?
...fication, getYear returns the year minus 1900, originally meant to return "98" for 1998. getYear was deprecated in ECMAScript Version 3 and replaced with getFullYear().
Internet Explorer changed getYear() to work like getFullYear() and make it Y2k-compliant, while Mozilla kept the standard behavior....
How to query nested objects?
...r is a subdocument that contains only the field company with the value 'ABC123' and the field address with the value '123 Street', in the exact order:
db.inventory.find( {
producer: {
company: 'ABC123',
address: '123 Street'
}
});
...
Decimal number regular expression, where digit after decimal is optional
...pace & comments in regular expression)
For example, it will match:
123
23.45
34.
.45
-123
-273.15
-42.
-.45
+516
+9.8
+2.
+.5
And will reject these non-numbers:
. (single decimal point)
-. (negative decimal point)
+. (plus decimal point)
(empty string)
The simpler solutions can incorre...
App Inventor 2 最新QA汇总 - App Inventor 2 中文网 - 清泛IT社区，有思想、有深度
...进了文档，是官方的中文化升级版本。参考：https://www.fun123.cn/reference/info/ReleaseNotes.html
Q：ai2Starter模拟器中AI伴侣版本过旧，可否升级到最新版本？
A：有办法，但是过程较为复杂，需要一定的技术功底。而且这个模拟器速...
分享几个App Inventor 2“隐藏”的非常的实用的小技巧 - App Inventor 2 中...
...1Xj41147cn/
4、代码块导出图像，以及还原：https://www.fun123.cn/reference/other/download-pngs.html
5、iOS界面外观
6、过程参数，鼠标悬停时，可直接拖动获取和设置的代码块；参数可变：https://www.fun123.cn/reference/concepts/mutators.html...
2024 全“心”出发 -- 全新App Inventor 2 移动社区开启新征程 - App Inven...
...努力！
为什么使用两个独立的域名：bbs.tsingfun.com 和 fun123.cn？
fun123.cn 作为纯粹的App Inventor 2 中文编程平台，及中文文档教程平台；bbs.tsingfun.com作为社区及App Inventor 2之外技术的讨论，看起来独立，实际则是可以融为一体的。...
Appinventor的人工智能组件在哪里？ - App Inventor 2 中文网 - 清泛IT社区，为创新赋能！
...个是AI绘图。
更多指导，请查看中文文档：https://www.fun123.cn/reference/ ... mental.html#ChatBot
另外，除了调用ChatGPT外，还有很多拓展可以自行训练AI数据集，自行实现AI功能，
详见：[hide]https://www.fun123.cn/reference/extensions/[/hide]
...