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How can I conditionally require form inputs with AngularJS?
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As a side note, you can also use a function and do more complex logic there.
– Leandro Zubrezki
Nov 22 '15 at 12:47
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How to sort a Ruby Hash by number value?
... results, since it would not sort by string value... You should reverse a1 and a2 in your example
Best way in any case (as per Mladen) is:
metrics = {"sitea.com" => 745, "siteb.com" => 9, "sitec.com" => 10 }
metrics.sort_by {|_key, value| value}
# ==> [["siteb.com", 9], ["sitec.com",...
Create JSON-object the correct way
...' => $post_data), JSON_FORCE_OBJECT);
"{}" brackets specify an object and "[]" are used for arrays according to JSON specification.
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How to use Bash to create a folder if it doesn't already exist?
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First, in bash "[" is just a command, which expects string "]" as a last argument, so the whitespace before the closing bracket (as well as between "!" and "-d" which need to be two separate arguments too) is important:
if [ ! -d /home/mlzboy/b2c2/shared/db...
使用App Inventor 2 控制物联网设备/低功耗蓝牙设备(BLE) · App Inventor 2 中文网
...块并将其拖放到基于 Web 浏览器的平台上即可创建自己的 Android 移动应用程序 [2]。 这种简单易用的编程界面支持超过 450 万用户，使每个人（即使是没有任何编程经验的人）都能够快速创建自己的移动应用程序。 与传统的Android...
When do you need to explicitly call a superclass constructor?
...Well there's a difference between requiring the constructor to be present, and requiring an explicit delegation to the parameterless super-constructor. The latter is a matter of style - whether you prefer to be explicit/obvious or brief.
– Jon Skeet
Dec 11 '17 ...
No startswith,endswith functions in Go?
Just curious to findout: why aren't there standard functions like startswith, endswith, etc as part of the standard libraries in the Go programming language?
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Matplotlib (pyplot) savefig outputs blank image
...ould adjust the values I pass to plt.subplot(); maybe try values 131, 132, and 133, or values that depend whether or not T0 exists.
Second, after plt.show() is called, a new figure is created. To deal with this, you can
Call plt.savefig('tessstttyyy.png', dpi=100) before you call plt.show()
Save ...
Add a new line in file?
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Check that you have "\n" and not '\n'
– Marklar
Dec 19 '12 at 11:12
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Why does JavaScript only work after opening developer tools in IE once?
...anks! I'd say it's a bug since you should have the same conditions to test and debug your website with the console open and close.
– Chnoch
Mar 6 '15 at 11:35
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