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How to do Base64 encoding in node.js?
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Buffers can be used for taking a string or piece of data and doing base64 encoding of the result. For example:
> console.log(Buffer.from("Hello World").toString('base64'));
SGVsbG8gV29ybGQ=
> console.log(Buffer.from("SGVsbG8gV29ybGQ=", 'base64').toString('ascii'))
Hello Worl...
Grep only the first match and stop
... you. btw - are all those other arguments necessary that I have in the command? and what if I can't pipe it by chance (just in case).
– Tim Kamm
Dec 30 '12 at 18:48
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Default value of function parameter
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If you put the declaration in a header file, and the definition in a separate .cpp file, and #include the header from a different .cpp file, you will be able to see the difference.
Specifically, suppose:
lib.h
int Add(int a, int b);
lib.cpp
int Add(int a, int b = ...
Undo a git stash
... the state before I stashed? How could I do this? I've closed the terminal and my laptop is shut down. I've done some researched and it seems there's no way to do this.
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remove objects from array by object property
...u need to do to fix the bug is decrement i for the next time around, then (and looping backwards is also an option):
for (var i = 0; i < arrayOfObjects.length; i++) {
var obj = arrayOfObjects[i];
if (listToDelete.indexOf(obj.id) !== -1) {
arrayOfObjects.splice(i, 1);
i--...
Why can I access private variables in the copy constructor?
...eiterating what behaviour's valid. "access modifiers work on class level, and not on object level." - yes, but why?
The overarching concept here is that it's the programmer(s) designing, writing and maintaining a class who is(are) expected to understand the OO encapsulation desired and empowered t...
Size of font in CSS with slash
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This actually sets two properties and is equivalent to:
font-size: 100%;
line-height: 120%;
To quote the official documentation:
The syntax of this property is based on a traditional typographical shorthand notation to set multiple properties related t...
Argmax of numpy array returning non-flat indices
...oblem is, that I would like to find the biggest element in the whole array and get the indices of that.
3 Answers
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instanceof Vs getClass( )
I see gain in performance when using getClass() and == operator over instanceOf operator.
4 Answers
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Open application after clicking on Notification
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See below code. I am using that and it is opening my HomeActivity.
NotificationManager notificationManager = (NotificationManager) context
.getSystemService(Context.NOTIFICATION_SERVICE);
Notification notification = new Notification(ico...