From 0f8967b9113d698cdeb2d05ca85d2d9a80461c24 Mon Sep 17 00:00:00 2001 From: Minteck Date: Sat, 9 Apr 2022 16:39:03 +0200 Subject: Commit --- node_modules/dot-prop/index.js | 141 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 141 insertions(+) create mode 100644 node_modules/dot-prop/index.js (limited to 'node_modules/dot-prop/index.js') diff --git a/node_modules/dot-prop/index.js b/node_modules/dot-prop/index.js new file mode 100644 index 0000000..189831c --- /dev/null +++ b/node_modules/dot-prop/index.js @@ -0,0 +1,141 @@ +'use strict'; +const isObj = require('is-obj'); + +const disallowedKeys = [ + '__proto__', + 'prototype', + 'constructor' +]; + +const isValidPath = pathSegments => !pathSegments.some(segment => disallowedKeys.includes(segment)); + +function getPathSegments(path) { + const pathArr = path.split('.'); + const parts = []; + + for (let i = 0; i < pathArr.length; i++) { + let p = pathArr[i]; + + while (p[p.length - 1] === '\\' && pathArr[i + 1] !== undefined) { + p = p.slice(0, -1) + '.'; + p += pathArr[++i]; + } + + parts.push(p); + } + + if (!isValidPath(parts)) { + return []; + } + + return parts; +} + +module.exports = { + get(obj, path, value) { + if (!isObj(obj) || typeof path !== 'string') { + return value === undefined ? obj : value; + } + + const pathArr = getPathSegments(path); + if (pathArr.length === 0) { + return; + } + + for (let i = 0; i < pathArr.length; i++) { + if (!Object.prototype.propertyIsEnumerable.call(obj, pathArr[i])) { + return value; + } + + obj = obj[pathArr[i]]; + + if (obj === undefined || obj === null) { + // `obj` is either `undefined` or `null` so we want to stop the loop, and + // if this is not the last bit of the path, and + // if it did't return `undefined` + // it would return `null` if `obj` is `null` + // but we want `get({foo: null}, 'foo.bar')` to equal `undefined`, or the supplied value, not `null` + if (i !== pathArr.length - 1) { + return value; + } + + break; + } + } + + return obj; + }, + + set(obj, path, value) { + if (!isObj(obj) || typeof path !== 'string') { + return obj; + } + + const root = obj; + const pathArr = getPathSegments(path); + if (pathArr.length === 0) { + return; + } + + for (let i = 0; i < pathArr.length; i++) { + const p = pathArr[i]; + + if (!isObj(obj[p])) { + obj[p] = {}; + } + + if (i === pathArr.length - 1) { + obj[p] = value; + } + + obj = obj[p]; + } + + return root; + }, + + delete(obj, path) { + if (!isObj(obj) || typeof path !== 'string') { + return; + } + + const pathArr = getPathSegments(path); + + for (let i = 0; i < pathArr.length; i++) { + const p = pathArr[i]; + + if (i === pathArr.length - 1) { + delete obj[p]; + return; + } + + obj = obj[p]; + + if (!isObj(obj)) { + return; + } + } + }, + + has(obj, path) { + if (!isObj(obj) || typeof path !== 'string') { + return false; + } + + const pathArr = getPathSegments(path); + + for (let i = 0; i < pathArr.length; i++) { + if (isObj(obj)) { + if (!(pathArr[i] in obj)) { + return false; + } + + obj = obj[pathArr[i]]; + } else { + return false; + } + } + + return true; + } +}; -- cgit