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- 'use strict';
- var utils = require('../utils');
- function parsePropPath(name) {
- // foo[x][y][z]
- // foo.x.y.z
- // foo-x-y-z
- // foo x y z
- return utils.matchAll(/\w+|\[(\w*)]/g, name).map(function(match) {
- return match[0] === '[]' ? '' : match[1] || match[0];
- });
- }
- function arrayToObject(arr) {
- var obj = {};
- var keys = Object.keys(arr);
- var i;
- var len = keys.length;
- var key;
- for (i = 0; i < len; i++) {
- key = keys[i];
- obj[key] = arr[key];
- }
- return obj;
- }
- function formDataToJSON(formData) {
- function buildPath(path, value, target, index) {
- var name = path[index++];
- var isNumericKey = Number.isFinite(+name);
- var isLast = index >= path.length;
- name = !name && utils.isArray(target) ? target.length : name;
- if (isLast) {
- if (utils.hasOwnProperty(target, name)) {
- target[name] = [target[name], value];
- } else {
- target[name] = value;
- }
- return !isNumericKey;
- }
- if (!target[name] || !utils.isObject(target[name])) {
- target[name] = [];
- }
- var result = buildPath(path, value, target[name], index);
- if (result && utils.isArray(target[name])) {
- target[name] = arrayToObject(target[name]);
- }
- return !isNumericKey;
- }
- if (utils.isFormData(formData) && utils.isFunction(formData.entries)) {
- var obj = {};
- utils.forEachEntry(formData, function(name, value) {
- buildPath(parsePropPath(name), value, obj, 0);
- });
- return obj;
- }
- return null;
- }
- module.exports = formDataToJSON;
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