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Objective-C class -> string like: [NSArray className] -> @“NSArray”
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@MattDiPasquale: NSClassFromString works a bit differently. Since all of the class names exist somewhere in the Objective-C runtime, NSClassFromString takes the string and explores the list of classes maintained by the runtime looking for the class that has the given name....
Plotting a list of (x, y) coordinates in python matplotlib
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If you have a numpy array you can do this:
import numpy as np
from matplotlib import pyplot as plt
data = np.array([
[1, 2],
[2, 3],
[3, 6],
])
x, y = data.T
plt.scatter(x,y)
plt.show()
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What is the “->” PHP operator called and how do you say it when reading code out loud? [closed]
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Well, sounds weird if you read "And after B executes and return the salary, A arrow C". It'll be more like A refers to C.
– Ben
Apr 6 '10 at 20:54
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Getting “net::ERR_BLOCKED_BY_CLIENT” error on some AJAX calls
..., provided the extension provides enough details about that. Once you identified the culprit, you can either try to avoid triggering the rule by using different URIs, report the rule as incorrect or overly-broad to the team that created it, or both.
Check the docs for a particular add-on on how to d...
Error:(1, 0) Plugin with id 'com.android.application' not found
...on-type=all
Update: ./gradlew wrapper
Latest Android Gradle Plugin: 3.6.2
If you add the following code snippet to the top of your build.gradle file. Gradle will update the build tools.
buildscript {
repositories {
google() // For Gradle 4.0+
maven { url 'https://maven.google.co...
How to add a footer to a UITableView in Storyboard
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Note that you can only do this if you have more than 0 prototype cells specified. Otherwise, the dragged-in view always becomes the header. To fix this, change the number of prototype cells to 1, drag in the view underneath the one prototype cell, then c...
Android Layout with ListView and Buttons
Alright, this specific layout is just annoying me. And can't seem to find a way to have a listView, with a row of buttons at the bottom so that the listview doesn't extend over top of the buttons, and so the buttons are always snapped to the bottom of the screen. Here's what I want:
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django models selecting single field
...s_list('eng_name', flat=True)
That creates a flat list of all eng_names. If you want more than one field per row, you can't do a flat list: this will create a list of tuples:
Employees.objects.values_list('eng_name', 'rank')
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WebException how to get whole response with a body?
...aying reader and @iwtu, but Fully comprehensive answers can make the real difference to the beginners reading this answer;)
– Jeroen
Nov 18 '16 at 12:18
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SQL - HAVING vs. WHERE
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Is this order of operations always used? What if the query optimizer changes the order?
– MSIS
Dec 27 '19 at 22:20
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