两整数之和

[pwstrick]

371. 两整数之和

/**
 * @param {number} a
 * @param {number} b
 * @return {number}
 */
var getSum = function(a, b) {
    let sum;
    while(b != 0) {
        sum = a ^ b;
        b = (a & b) << 1;
        a = sum;
    }
    return a;
};