Created
April 8, 2022 19:16
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JavaScript to convert camelCase to snake_case (server-side)
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| 'use strict' | |
| // converts camelCase to snake_case | |
| // used to convert to database | |
| // myVar => my_var | |
| function toSnakeCase (objectArrayOrString) { | |
| return keysToSnake(objectArrayOrString) | |
| } | |
| const toSnake = (s) => { | |
| // return this.replace(/([A-Z])/g, function($1){return "_"+$1.toLowerCase();}); | |
| return s.split(/(?=[A-Z])/).join('_').toLowerCase() | |
| } | |
| const isArray = function (a) { | |
| return Array.isArray(a) | |
| } | |
| const isObject = function (o) { | |
| return o === Object(o) && !isArray(o) && typeof o !== 'function' | |
| } | |
| const keysToSnake = function (o) { | |
| if (isObject(o)) { | |
| const n = {} | |
| Object.keys(o) | |
| .forEach((k) => { | |
| n[toSnake(k)] = keysToSnake(o[k]) | |
| }) | |
| return n | |
| } | |
| else if (isArray(o)) { | |
| return o.map((i) => { | |
| return keysToSnake(i) | |
| }) | |
| } | |
| return o | |
| } | |
| module.exports = toSnakeCase |
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