74 lines
1.5 KiB
JavaScript
74 lines
1.5 KiB
JavaScript
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'use strict';
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const mapObj = require('map-obj');
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const camelCase = require('camelcase');
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const QuickLru = require('quick-lru');
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const has = (array, key) => array.some(x => {
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if (typeof x === 'string') {
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return x === key;
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}
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x.lastIndex = 0;
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return x.test(key);
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});
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const cache = new QuickLru({maxSize: 100000});
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// Reproduces behavior from `map-obj`
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const isObject = value =>
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typeof value === 'object' &&
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value !== null &&
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!(value instanceof RegExp) &&
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!(value instanceof Error) &&
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!(value instanceof Date);
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const camelCaseConvert = (input, options) => {
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options = {
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deep: false,
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pascalCase: false,
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...options
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};
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const {exclude, pascalCase, stopPaths, deep} = options;
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const stopPathsSet = new Set(stopPaths);
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const makeMapper = parentPath => (key, value) => {
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if (deep && isObject(value)) {
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const path = parentPath === undefined ? key : `${parentPath}.${key}`;
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if (!stopPathsSet.has(path)) {
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value = mapObj(value, makeMapper(path));
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}
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}
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if (!(exclude && has(exclude, key))) {
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const cacheKey = pascalCase ? `${key}_` : key;
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if (cache.has(cacheKey)) {
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key = cache.get(cacheKey);
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} else {
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const ret = camelCase(key, {pascalCase});
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if (key.length < 100) { // Prevent abuse
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cache.set(cacheKey, ret);
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}
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key = ret;
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}
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}
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return [key, value];
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};
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return mapObj(input, makeMapper(undefined));
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};
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module.exports = (input, options) => {
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if (Array.isArray(input)) {
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return Object.keys(input).map(key => camelCaseConvert(input[key], options));
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}
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return camelCaseConvert(input, options);
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};
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