如何从字符串中提取lat和long值？

Question

例如,

'POINT (-109.42948819496439 44.5177967942721)'

如何从前面的字符串中提取lat和long值？

我试过了:

coords.substring(7,14) + ' ' + coords.substring(15,22)

但我认为我不能依赖它

Answer 1

// Robust matching of two space-separated floats within parentheses:
let point = 'POINT (-109.42948819496439 44.5177967942721)';
let [, lat, long] = point.match(/\(([+-]?[0-9.]+) ([+-]?[0-9.]+)\)/);

console.log(lat, long);

注意:RegExp仅与提供的测试用例保证一样健壮.抛出TypeErrorif模式不匹配.