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PHP 2022-03-27 12:45:03
laravel hasOne
use Illuminate\Database\Eloquent\Builder; // Retrieve posts with at least one comment containing words like foo%... $posts = App\Post::whereHas('comments', function (Builder $query) { $query->where('content', 'like', 'foo%'); })->get(); // Ret... Add solution -
Python 2022-03-27 07:10:06
scrapy get inside attribute value
#Given <time datetime="2020-09-01T11:48:24-03:00" itemprop="datePublished">a given text</time> # to get the attribute value datetime: getData = response.css('time::attr(datetime)').get() # output '2020-09-01T11:48:24-03:00' Add solution -
C++ 2022-03-22 13:25:16
arrow operator c++
/* the arrow operator is used for accessing members (fields or methods) of a class or struct it dereferences the type, and then performs an element selection (dot) operation */ #include <iostream> using std::cout; class Entity { public: con... Add solution -
Python 2022-03-17 06:25:01
matplotlib embedded in tkinter
# Creates simple Graph embedded in tkinter import tkinter from tkinter import * import numpy as np from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg, NavigationToolbar2Tk from matplotlib.figure import Figure tkFenster = Tk() tkFenster.geom... Add solution