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Detect whether there is an Internet connection available on Android [duplicate]
I need to detect whether the Android device is connected to the Internet.
6 Answers
6
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How can I see the SQL generated by Sequelize.js?
I want to see the SQL commands that are sent to the PostgreSQL server because I need to check if they are correct. In particular, I am interested in the table creation commands.
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Constant pointer vs Pointer to constant [duplicate]
...erally I would prefer the declaration like this which make it easy to read and understand (read from right to left):
int const *ptr; // ptr is a pointer to constant int
int *const ptr; // ptr is a constant pointer to int
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Get all elements but the first from an array
...5 the ArraySegment<> implements IList<>, IReadOnlyList<> and their base interfaces (including IEnumerable<>), so you can for example pass an ArraySegment<> to string.Join.
– Jeppe Stig Nielsen
Jan 25 '17 at 8:49
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Display image as grayscale using matplotlib
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The following code will load an image from a file image.png and will display it as grayscale.
import numpy as np
import matplotlib.pyplot as plt
from PIL import Image
fname = 'image.png'
image = Image.open(fname).convert("L")
arr = np.asarray(image)
plt.imshow(arr, cmap='gray', vmin...
How to pass html string to webview on android
Hi I am parsing xml and then loading it to web view, after parsing I am creating four strings so that I could append all string to one view. I am able to get two views on the web view but not the first two strings.
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Backbone.js fetch with parameters
...r servers, emulate HTTP by mimicking the HTTP method with `_method`
// And an `X-HTTP-Method-Override` header.
if (Backbone.emulateHTTP) {
if (type === 'PUT' || type === 'DELETE') {
if (Backbone.emulateJSON) params.data._method = type;
params.type = 'POST';
para...
Deleting all files in a directory with Python
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Via os.listdir and os.remove:
import os
filelist = [ f for f in os.listdir(mydir) if f.endswith(".bak") ]
for f in filelist:
os.remove(os.path.join(mydir, f))
Or via glob.glob:
import glob, os, os.path
filelist = glob.glob(os.path...
What is purpose of the property “private” in package.json?
I'm learning node.js and express, I am wondering what is the property "private" in ./package.json file used for?
1 Answer
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How do I convert Word files to PDF programmatically? [closed]
...-in installed. It searches a directory for .doc files, opens them in Word and then saves them as a PDF. Note that you'll need to add a reference to Microsoft.Office.Interop.Word to the solution.
using Microsoft.Office.Interop.Word;
using System;
using System.Collections.Generic;
using System.IO;
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