shineout/css/utils/hash.js

Shein 前端组件库

"use strict";

exports.__esModule = true;
exports.default = createHash;

function createHash(obj) {
  var hash = 0;
  var i;
  var chr;
  var len;
  var str;
  var type = typeof obj;

  switch (type) {
    case 'object':
      str = JSON.stringify(obj);
      break;

    case 'string':
      str = obj;
      break;

    default:
      str = obj ? obj.toString() : '';
      break;
  }

  if (typeof str === 'string') {
    if (str.length === 0) return hash;

    for (i = 0, len = str.length; i < len; i++) {
      chr = str.charCodeAt(i); // eslint-disable-next-line

      hash = (hash << 5) - hash + chr; // eslint-disable-next-line

      hash |= 0; // Convert to 32bit integer
    }
  }

  return hash.toString(36);
}