使用这个正则表达式
/\.{2,}/g
let text = "Is this .. all there is?";
let text2 = "Is this . all there is?";
let pattern =/\.{2,}/g;// use this regex
let result = pattern.test(text);
let result2 = pattern.test(text2);
document.getElementById("demo").innerHTML = `${text}'s result: ${result?"true":"false"}`;
document.getElementById("demo2").innerHTML = `${text2}'s result: ${result2?"true":"false"}`;<!DOCTYPE html>
<html>
<body>
<p id="demo"></p>
<p id="demo2"></p>
</body>
</html>“...如何测试一个字符串是否包含 1 个或多个放在一起的点。...”
使用
^$var s = 'abc ... 123'
console.log(/^[^\.]+$/g.test(s))