根据某些字符和符号将文本字符串转换为数组

Question

我有一个像这样的字符串：

let str  = "log(5)+sin(5)*π-cos(5)/√(4)*4^2";

我想将其转换为这样的数组：

var newArr = ["log(", "5", ")", "+", "sin(", "5", ")", "*", "π", "-", "cos(", "5", ")", "/", "√(", "4", ")", "*", "4", "^", "2"];

我尝试使用Split，但是没有得到想要的结果

str.split(/(\b)/g)

Answer 1

您可以通过正则表达式解决它：

let regex = /[A-Za-z√(]+|\d+|[)]|[+-/*^]|[π]/gm;
let str = `log(5)+sin(5)*π-cos(5)/√(4)*4^2`;
var match = str.match(regex);
console.log(match);

regex101上的详细信息：https://regex101.com/r/wtg3fl/1