var string = "ABCDEFG";
var truncString = string.substring(0, 3); //Only keep the first 3 characters
console.log(truncString); //output: "ABC"const truncate = (str, max, suffix) => str.length < max ? str : `${str.substr(0, str.substr(0, max - suffix.length).lastIndexOf(' '))}${suffix}`;
// Example
truncate('This is a long message', 20, '...'); function truncateString(str, num) {
if (str.length > num) {
return str.slice(0, num) + "...";
} else {
return str;
}
}