How can I check if a user is logged-in in php?
I'm pretty new to PHP and I am trying to figure out how to use sessions to check and see if a user is logged into a website so that they would have authorization to access specific pages. Is this some...
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- 4 Feb at 22:33
AttributeError: module 'cv2.cv2' has no attribute 'createLBPHFaceRecognizer'
I am facing some attribute error while running face recognizing the code. My face detects code run perfectly.But while I try to run the face recognizing code it shows some attribute error. I googled a...
Declaring an HTMLElement Typescript
In the default TypeScript HTML app from visual studio, I added ``` HTMLElement ``` to the first line of the window.onload event handler, thinking that I could provide a type for "el". thus: ```...
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- 13 Apr at 16:32
Java reflection: how to get field value from an object, not knowing its class
Say, I have a method that returns a custom `List` with some objects. They are returned as `Object` to me. I need to get value of a certain field from these objects, but I don't know the objects' class...
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- 23 Apr at 14:13
How to return value from function which has Observable subscription inside?
I dont know how to extract value from Observable to be returned by function in which Observable is present. I need just a value from it to be returned, nothing else. Current version which works ``` ...
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- 13 Nov at 22:49
How to completely uninstall kubernetes
I installed kubernetes cluster using following this [guide](https://kubernetes.io/docs/setup/independent/create-cluster-kubeadm/). After some period of time, I decided to reinstall K8s but run into t...
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- 9 Jan at 19:0
Vertical line using XML drawable
I'm trying to figure out how to define a vertical line (1dp thick) to be used as a drawable. To make a horizontal one, it's pretty straightforward: ``` <shape xmlns:android="http://schemas.android.c...
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- 30 Dec at 13:51
IPython/Jupyter Problems saving notebook as PDF
So, I've been trying to save a jupyter notebook as PDF but I just can't figure out how to do this. The first thing I try is from the file menu just download as PDF, but doing that results in: ``` nbco...
Retrieving Property name from lambda expression
Is there a better way to get the Property name when passed in via a lambda expression? Here is what i currently have. eg. ``` GetSortingInfo<User>(u => u.UserId); ``` It worked by casting it as a...
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- 5 Jan at 16:18
sudo echo "something" >> /etc/privilegedFile doesn't work
This is a pretty simple question, at least it seems like it should be, about sudo permissions in Linux. There are a lot of times when I just want to append something to `/etc/hosts` or a similar file...
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- 6 Mar at 01:57
docker-compose, run a script after container has started?
I have a service that I am bringing up through Rancher via docker-compose. The issue I am running into is that I need to set a password after the container has been deployed. The way rancher secrets ...
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- 3 Dec at 06:3
Where does Oracle SQL Developer store connections?
I have an application that I can't get connected to my Oracle Database 11g Express Edition. I created a test database in this edition, and I can connect to the database fine using Oracle SQL Developer...
What does the regex \S mean in JavaScript?
What does /\S/ mean in a regex? ``` while (cur ! = null) { if (cur.nodeType == 3 && ! /\S/. test(cur.nodeValue)) { element. removeChild(cur); } else if (cur. nodeType == 1) { ...
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- 7 Feb at 18:28
How to open a PDF file in an <iframe>?
I want to open the pdf file in an iframe. I am using following code: ``` <a class="iframeLink" href="https://something.com/HTC_One_XL_User_Guide.pdf"> User guide </a> ``` It is opening fine in Firefo...
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- 2 Dec at 13:53
How to implement Android Pull-to-Refresh
In Android applications such as Twitter (official app), when you encounter a ListView, you can pull it down (and it will bounce back when released) to refresh the content. I wonder what is the best w...
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- 11 Apr at 14:9
UITableView - scroll to the top
In my table view I have to scroll to the top. But I cannot guarantee that the first object is going to be section 0, row 0. May be that my table view will start from section number 5. So I get an exc...
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- 3 Aug at 05:43
Simple two column html layout without using tables
I'm looking for a super easy method to create a two column format to display some data on a webpage. How can i achieve the same format as: ``` <table> <tr> <td>AAA</td> <td>BBB</...
Extract Google Drive zip from Google colab notebook
I already have a zip of (2K images) dataset on a google drive. I have to use it in a ML training algorithm. Below Code extracts the content in a string format: ``` from pydrive.auth import GoogleAuth...
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- 16 Apr at 12:35
Using "If cell contains" in VBA excel
I'm trying to write a macro where if there is a cell with the word "TOTAL" then it will input a dash in the cell below it. For example:  and [googled a bit](http://www.google.com/search?sourceid=chrome&ie=UTF-8&q=cs...
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- 23 May at 12:3
Check if TextBox is empty and return MessageBox?
I made this statement to check if TextBox is empty, but the MessageBox always shows up wether the TextBox is empty or not. ``` private void NextButton_Click(object sender, EventArgs e) { ...
Bootstrap full-width text-input within inline-form
I am struggling to create a textbox that fits the entire width of my area. ``` <div class="row"> <div class="col-md-12"> <form class="form-inline" role="form"> ...
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- 1 Apr at 03:59
keycloak Invalid parameter: redirect_uri
When I am trying to hit from my api to authenticate user from keycloak, but its giving me error Invalid parameter: redirect_uri on keycloak page. I have created my own realm apart from master. keycloa...
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- 29 May at 09:12
dlib installation on Windows 10
I want to use `dlib` with python for image recognition. I have the python app running great with OpenCV on Windows 10, but when I want to install `dlib` from the `cmd` it gives me this following error...
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- 9 Jul at 21:44
HRESULT: 0x80131040: The located assembly's manifest definition does not match the assembly reference
The located assembly's manifest definition does not match the assembly reference getting this when running nunit through ncover. Any idea?