JS: String.prototype.substr

By Xah Lee. Date: . Last updated: .
str.substr(index, length)

Return a substring of length length, starting at index

console.log("abcd".substr(1, 2) === "bc");
// true
console.log("abcd".substr(1, 9) === "bcd");
// true

// length longer than available, take to the end instead

JavaScript, substring

JS String.prototype