javascript - 正则表达式为首字母并且它包含一个词

Question

var str = "I dont have any one";
var str1 = "We dont have any one";
var str2 = "I dont have any more";
var str2 = "I dont have any two";

对于这些字符串，需要找到一个 reg，它应该匹配 以“I”开头并且包含“one”或“two”的字符串。

var regx = "/^I/";        //this starts with I
var regx = "/(one|two)/";  //this match one or two

但是如何用 AND 组合两者呢？

所以 str1.test(regx) 应该是 false。

Answer 1

只匹配 I 和 one 之间的任意字符

var str = "I dont have any one";
var str1 = "We dont have any one";
var str2 = "I dont have any more";
var str3 = "I dont have any two";

var regx = /^I.*(one|two)/

console.log(regx.test(str)) // True
console.log(regx.test(str1)) // False
console.log(regx.test(str2)) // False
console.log(regx.test(str3)) // True

Here一个 fiddle 来测试