I’m trying to iterate over a typescript map but I keep getting errors and I could not find any solution yet for such a trivial problem. My code is: myMap : Map<string, boolean>; for(let key of myMap.keys()) { console.log(key); } And I get the Error: Type ‘IterableIteratorShim<[string, boolean]>’ is not an array type or a … Read more
Bearing in mind that I’ll be performing calculations on lat / long pairs, what datatype is best suited for use with a MySQL database? 21 Answers 21 Basically it depends on the precision you need for your locations. Using DOUBLE you’ll have a 3.5nm precision. DECIMAL(8,6)/(9,6) goes down to 16cm. FLOAT is 1.7m… This very … Read more
How do I calculate the distance between two points specified by latitude and longitude? For clarification, I’d like the distance in kilometers; the points use the WGS84 system and I’d like to understand the relative accuracies of the approaches available. 48 s 48
