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How to generate random SHA1 hash to use as ID in node.js?
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function generateId(len = 40) {
var arr = new Uint8Array(len / 2);
window.crypto.getRandomValues(arr);
return Array.from(arr, byteToHex).join("");
}
console.log(generateId())
// "1e6ef8d5c851a3b5c5ad78f96dd086e4a77da800"
console.log(generateId(20))
// "d2180620d8f781178840"
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Can't pickle when using multiprocessing Pool.map()
...ew release is nearly ready… now almost everything in pathos also runs on windows, and is 3.x compatible.
– Mike McKerns
Jul 24 '15 at 10:01
1
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How to allow keyboard focus of links in Firefox?
...ocus preference on the mac, so you'll have to make one. Right click in the window, create a new "integer" pref, and set it to 7.
Neither of these are terribly obvious. Also, neither of these are a server-side solution for developers, which is frustrating.
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When to call activity context OR application context?
...d from anywhere with in your application and is not attached to a specific window. But there are many exceptions, one exception is when you need to use or pass the activity context.
Activity context is associated with to the activity and can be destroyed if the activity is destroyed -- there may be ...
Color different parts of a RichTextBox string
...cting text as said from somebody, may the selection appear momentarily.
In Windows Forms applications there is no other solutions for the problem, but today I found a bad, working, way to solve: you can put a PictureBox in overlapping to the RichtextBox with the screenshot of if, during the selectio...
Android device does not show up in adb list [closed]
I have a HP Slate 21 that is connected to my Windows box using a USB cable. USB debugging is enabled on the device. After adding the proper %SingleAdbInterface% and %CompositeAdbInterface% entries to the android_winusb.inf file, I now see "Android ADB Interface" in my Device Manager. However, ru...
Mechanisms for tracking DB schema changes [closed]
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The product is GPL and is based on Eclipse so it runs on Linux, Mac and windows. It also support Oracle, Mysql and Postgresql at the moment (DB2 support is on the way). Have a look at the wiki where you will find more detailed information :
http://www.nextep-softwares.com/wiki
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Are Stored Procedures more efficient, in general, than inline statements on modern RDBMS's? [duplica
... performance benefit of stored procedures.
Ad Hoc SQL
Just open a console window to your DBMS and type in a SQL statement. In the past, these were the "worst" performers (on average) since the DBMS had no way of pre-optimizing the queries as in the parameterized/stored proc method.
Still a disadva...
How to get jQuery dropdown value onchange event
...it").hide();
$("#page-changer select").change(function() {
window.location = $("#page-changer select option:selected").val();
})
});
</script>
</head>
share
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What is the easiest way to get current GMT time in Unix timestamp format?
...that with CPython on modern platforms, including Linux, BSD, Mac OS X, and Windows, will all return UTC for time.time(). This mirrors the behavior of the C standard library's time function on these OS's.
– Edmond Burnett
May 26 '13 at 7:21
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