function isAscii(str) {
var pattern = /^[\x00-\x7F]+$/; // ASCII范围的Unicode编码
return pattern.test(str);
}
var str1 = "Hello ,_-";
console.log(isAscii(str1)); // true
var str2 = "hello你好";
console.log(isAscii(str2)); // false
标签:console,log,pattern,str1,js,var,ASCI,isAscii,字符串
From: https://blog.51cto.com/livestreaming/9177109