DEV Community

Matt Kenefick
Matt Kenefick

Posted on


Snippet: Grab lat/lon from Google Maps URL

I needed to grab several latitude/longitude coordinates recently from Google Maps without using an API. This line can be executed in the console to quickly produce the coordinates derived from the URL.

[_, lat, lng] = location.href.match(/@([-0-9]+\.[0-9]+),([-0-9]+\.[0-9]+),/); console.log(lat, lng);
// 39.9532614 -75.1539449
Enter fullscreen mode Exit fullscreen mode

Oldest comments (0)

11 Tips That Make You a Better Typescript Programmer


1 Think in {Set}

Type is an everyday concept to programmers, but it’s surprisingly difficult to define it succinctly. I find it helpful to use Set as a conceptual model instead.

#2 Understand declared type and narrowed type

One extremely powerful typescript feature is automatic type narrowing based on control flow. This means a variable has two types associated with it at any specific point of code location: a declaration type and a narrowed type.

#3 Use discriminated union instead of optional fields


Read the whole post now!