如何将字符串 "1+2+3" 存储为数组，如 ["1","+","2","+","3"] in javascript？

Question

var numbers = "3+3/2";

console.log(numbers);

var numArr = numbers.split(" ");
console.log(numArr);
numArr.splice(1, 3, '1');
console.log(numArr);
numbers = numArr.toString();

console.log(numbers);

var numbers = "3+3/2";

console.log(numbers);

var numArr = numbers.split(" ");
console.log(numArr);
numArr.splice(1, 3, '1');
console.log(numArr);
numbers = numArr.toString();

console.log(numbers);

I am trying to convert the whole string into an array. Then use the splice to edit the numArr Then change the original string, numbers

Answer 1

我会使用正则表达式来匹配数字或非space、非数字字符：

var numbers = "3+3/2";
console.log(
  numbers.match(/\d+|[^\s\d]+/g)
);

Answer 2

您可以使用非数字字符拆分字符串。

var numbers = "3+3/2",
    parts = numbers.split(/(\D+)/);

console.log(parts);