Check if Internet Connection Exists with jQuery?
7519
Detect the Internet connection is offline?
10278
Check if an image is loaded (no errors) with jQuery
3358
What's the best way to check if a file exists in C?
35245
How do I check if file exists in jQuery or pure JavaScript?
108784
Fast way to check if a server is accessible over the network in C#
47865
Check if user is using IE
131554
jQuery determining if element exists on page
89699
How do I see if Wi-Fi is connected on Android?
5511
Check if table exists
56179
How does Windows know whether it has internet access or if a Wi-Fi connection requires in-browser authentication?
91324
Check whether an IP belongs to a specific range
57289
Check for internet connection with Swift
152066
How do I conduct a performance test of my internet connection?
97784
How to check WiFi is pass through web page login?
41464
Get current URL with jQuery?
150797
Check ping statistics without stopping
79635
Test if file exists