JS: String Operations

String length

console.log("abc".length);
// 3

• JS: String.prototype.length

String length of unicode string

if the string contains emoji, see:

• JS: Count Chars in String 📜

Substring

console.log("01234".slice(1, 3));
// 12

Index starts at 0.

• JS: String.prototype.slice

Join string

Use the plus sign + to join strings.

console.log("aa" + "bb");
// aabb

String methods

• JS: String.prototype