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Confused about __str__ on list in Python [duplicate]
... when you set a list element equal to a list or element within a list, the new list only stores the reference to the memory location (it doesn't actually create new memory space specific to that new variable). This is where deepcopy comes in handy!
...
How can you find the height of text on an HTML canvas?
.../ Canvas can tell us the width
var w = ctx.measureText(message).width;
// New function gets the other info we need
var h = getTextHeight(font);
testLine(ctx, x, y, w, 'red');
testLine(ctx, x, y + h.ascent, w, 'green');
testLine(ctx, x, y + h.height, w, 'blue');
...
SSH Private Key Permissions using Git GUI or ssh-keygen are too open
...veryone else.
If you can't remember what the original settings are, add a new user and create a set of SSH keys for that user, thus creating a new .ssh folder which will have default permissions. You can use that new .ssh folder as the reference for permissions to reset your .ssh folder and files ...
Android: Bitmaps loaded from gallery are rotated in ImageView
...ample...
First you need to create an ExifInterface:
ExifInterface exif = new ExifInterface(filename);
You can then grab the orientation of the image:
orientation = exif.getAttributeInt(ExifInterface.TAG_ORIENTATION, 1);
Here's what the orientation values mean:
http://sylvana.net/jpegcrop/exif...
PostgreSQL Autoincrement
...
Yes, SERIAL is the equivalent function.
CREATE TABLE foo (
id SERIAL,
bar varchar);
INSERT INTO foo (bar) values ('blah');
INSERT INTO foo (bar) values ('blah');
SELECT * FROM foo;
1,blah
2,blah
SERIAL is just a create table time macro around sequences. You can not alter SERIAL...
Send POST data using XMLHttpRequest
...
The code below demonstrates on how to do this.
var http = new XMLHttpRequest();
var url = 'get_data.php';
var params = 'orem=ipsum&name=binny';
http.open('POST', url, true);
//Send the proper header information along with the request
http.setRequestHeader('Content-type', 'appli...
Proper way to return JSON using node or Express
...": "sqswqswqs",
"timestamp": "2019-11-29T12:46:21.633Z",
"_id": "5de1131d8f7be5395080f7b9",
"name": "topics test xqxq",
"thumbnail": "waterfall-or-agile-inforgraphics-thumbnail-1575031579309.jpg",
"category_id": "5de0fe0b4f76c22ebce2b70a",
"__v": 0
...
How to identify whether a file is normal file or directory
...unction () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f955941%2fhow-to-identify-whether-a-file-is-normal-file-or-directory%23new-answer', 'question_page');
}
);
...
How to check if a stored procedure exists before creating it
...ted-date), this leaves that stuff intact, instead of making the proc brand-new every time. I'm trying to get this turned into my team's "best practice" for maintaining our own procs, which typically have to be copied/propagated to several DBs.
– NateJ
Jun 25 '...
MySQL Creating tables with Foreign Keys giving errno: 150
...n other tables pointing at the same field you are attempting to create the new FK for, and they are malformed (i.e. different collation), they will need to be made consistent first. This may be a result of past changes where SET FOREIGN_KEY_CHECKS = 0; was utilized with an inconsistent relationship...