如何修剪字符串中的前导逗号

s = ",hello,world"
s = s.lstrip(",")
print(s)

String s = ",hello,world";
s = s.replaceAll("^,+", "");
System.out.println(s);

let s = ",hello,world";
s = s.replace(/^,+/, "");
console.log(s);