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Why em instead of px?
... There is no way to convert between ems and pixels, unless you know what the size of an 'em' is in pixels, in that context. That can depend on the inherited font size of that element, which can in turn depend on the font size of the document as a whole, which can depend on the font size ...
Constructors in JavaScript objects
...) { return name; };
this.set_name = function (value) {
if (typeof value != 'string')
throw 'Name must be a string';
if (value.length < 2 || value.length > 20)
throw 'Name must be 2-20 characters long.';
name = value;
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How to define object in array in Mongoose schema correctly with 2d geo index
...a thanks again. I'm going to just avoid 'type' in my mongoose schemas from now on.
– blackops
Jun 4 '15 at 21:30
Can y...
Interface/enum listing standard mime-type constants
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There is now also the class org.apache.http.entity.ContentType from package org.apache.httpcomponents.httpcore, starting from 4.2 up.
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Android: install .apk programmatically [duplicate]
...s(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
That is correct now, my auto-update is working. Thanks for help. =)
Edit 20.7.2016:
After a long time, I had to use this way of updating again in another project. I encountered a number of problems with old solution. A lot of things have ...
Cannot import the keyfile 'blah.pfx' - error 'The keyfile may be password protected'
... key file, any other users that get latest on this checked in key file are now going to experience this bug. If any of those users check in their "fix" and I get latest, then my machine is now broken again... and so on. Microsoft have started a trouble ticket on this and assigned it to the VS2010 ...
How do I get the object if it exists, or None if it does not exist?
...u can do it this way:
go = Content.objects.filter(name="baby").first()
Now go variable could be either the object you want or None
Ref: https://docs.djangoproject.com/en/1.8/ref/models/querysets/#django.db.models.query.QuerySet.first
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How to get last items of a list in Python?
...le a, not the last zero elements []. For guarding zero, you can use a[-n:] if n > 0 else [].
– nekketsuuu
Jul 19 '18 at 3:35
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Linux - Install redis-cli only
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now it isn't working http://security.ubuntu.com/ubuntu bionic-updates/universe amd64 redis-tools amd64 5:4.0.9-1ubuntu0.1 returns 404 Not Found
– Andrew Sneck
Nov 25 '19 at 9:28
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Query EC2 tags from within instance
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The ec2metadata tool is deprecated. Now you query the 'magic' URL at 169.254.169.254/latest/meta-data - hit it with cURL and it gives you magic endpoints you can use to get various bits of data. In this case curl http://169.254.169.254/latest/meta-data/instance...