qs-like/es/stringify.js

A tiny query string parsing and stringifying library

/*
 * qs-like.js v1.0.1
 * (c) 2018-2019 Jesse Feng
 * Released under the MIT License.
 */
import append from 'celia/_append';
import isObject from 'celia/isObject';
import forOwn from 'celia/_forOwn';
import escape from './escape.js';

var stringify = JSON.stringify;

function convert(value, encode) {
  switch (typeof value) {
    case 'string':
      return encode(value);
    case 'number':
      if (isNaN(value)) {
        return '';
      }
    case 'boolean':
      return value.toString();
    case 'object':
      return value === null ? '' : encode(stringify(value));
    case 'undefined':
      return '';
    // case 'function':
    //   return encode(value.toString());
    default:
      return encode(value.toString());
  }
}

var isArray = Array.isArray;
function stringify$1 (obj, sep, eq, options) {
  if (isObject(obj)) {
    sep = sep || '&';
    eq = eq || '=';
    options = options || {};

    var encode = options.encodeURIComponent || escape;
    var arr = [];

    forOwn(obj, function (value, key) {
      if (key) {
        if (isArray(value)) {
          value.forEach(function (val) {
            append(arr, key + eq + convert(val, encode));
          });
        } else {
          append(arr, key + eq + convert(value, encode));
        }
      }
    });

    return arr.join(sep);
  }
  return '';
}

export default stringify$1;