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JavaScript

console.log("󠀁".length); // 2
console.log("󠀁".charCodeAt(0)); // 56128
console.log("󠀁".charCodeAt(1)); // 56321
// 56128 56321 is 
// http://www.fileformat.info/info/unicode/char/e0001/index.htm

// http://stackoverflow.com/questions/7126384
console.log("\uDB40\uDC01" === "󠀁"); // true
console.log(String.fromCharCode(0xDB40, 0xDC01) === "󠀁"); // true

// http://stackoverflow.com/questions/4877326
var getNumCodePoints = function(str) {
    var numCodePoints = 0;
    for (var i = 0; i < str.length; i++) {
        var charCode = str.charCodeAt(i);
        if ((charCode & 0xF800) == 0xD800) {
            i++;
        }
        numCodePoints++;
    }
    return numCodePoints;
};

console.log(getNumCodePoints("󠀁")); // 1