lodash

问题 This is my Object var data = { a:{\"0\": \"1\"}, b:{\"1\": \"2\"}, c:{\"2\": \"3\"}, d:{\"3\": \"4\"} }; This is the output that I expect data = [ {\"0\": \"1\"}, {\"1\": \"2\"}, {\"2\": \"3\"}, {\"3\": \"4\"} ] 回答1: This works for me var newArrayDataOfOjbect = Object.values(data) In additional if you have key - value object try: const objOfObjs = { "one": {"id": 3}, "two": {"id": 4}, }; const arrayOfObj = Object.entries(objOfObjs).map((e) => ( { [e[0]]: e[1] } )); will return: [ "one": {"id"

问题 here is my use case in JavaScript: I have two arrays of objects which have properties that match (id & name). var result1 = [ {id:1, name:\'Sandra\', type:\'user\', username:\'sandra\'}, {id:2, name:\'John\', type:\'admin\', username:\'johnny2\'}, {id:3, name:\'Peter\', type:\'user\', username:\'pete\'}, {id:4, name:\'Bobby\', type:\'user\', username:\'be_bob\'} ]; var result2 = [ {id:2, name:\'John\', email:\'johnny@example.com\'}, {id:4, name:\'Bobby\', email:\'bobby@example.com\'} ]; var

问题 I once used Lodash _.pluck ...I loved pluck... Realizing Lodash no longer supports pluck (as of Lodash 4.x), I\'m struggling to remember what to use instead... I went to the docs, hit cmd-f, typed \'pluck\', but my poor abandoned friend is not even given a proper mention...not even a \'has been replaced by\'... Can someone please remind me what I\'m supposed to use instead? 回答1: Ah-ha! The Lodash Changelog says it all... "Removed _.pluck in favor of _.map with iteratee shorthand" var objects

问题 My objects: [ { description: \'object1\', id: 1 }, { description: \'object2\', id: 2 } { description: \'object3\', id: 3 } { description: \'object4\', id: 4 } ] In my function below I\'m passing in the description to find the matching ID: function pluckSavedView(action, view) { console.log(\'action: \', action); console.log(\'pluckSavedView: \', view); // view = \'object1\' var savedViews = retrieveSavedViews(); console.log(\'savedViews: \', savedViews); if (action === \'delete\') { var

问题 I have this sample data returned from an API. I\'m using Lodash\'s _.groupBy to convert the data into an object I can use better. The raw data returned is this: [ { \"name\": \"jim\", \"color\": \"blue\", \"age\": \"22\" }, { \"name\": \"Sam\", \"color\": \"blue\", \"age\": \"33\" }, { \"name\": \"eddie\", \"color\": \"green\", \"age\": \"77\" } ] I want the _.groupBy function to return an object that looks like this: [ { color: \"blue\", users: [ { \"name\": \"jim\", \"color\": \"blue\", \

问题 I have a HUGE collection and I am looking for a property by key someplace inside the collection. What is a reliable way to get a list of references or full paths to all objects containing that key/index? I use jQuery and lodash if it helps and you can forget about infinite pointer recursion, this is a pure JSON response. fn({ \'a\': 1, \'b\': 2, \'c\': {\'d\':{\'e\':7}}}, \"d\"); // [o.c] fn({ \'a\': 1, \'b\': 2, \'c\': {\'d\':{\'e\':7}}}, \"e\"); // [o.c.d] fn({ \'aa\': 1, \'bb\': 2, \'cc\':

问题 I need to split a JavaScript array into n sized chunks. E.g.: Given this array [\"a1\", \"a2\", \"a3\", \"a4\", \"a5\", \"a6\", \"a7\", \"a8\", \"a9\", \"a10\", \"a11\", \"a12\", \"a13\"] and a n equals to 4, the output should be this: [ [\"a1\", \"a2\", \"a3\", \"a4\"], [\"a5\", \"a6\", \"a7\", \"a8\"], [\"a9\", \"a10\", \"a11\", \"a12\"], [\"a13\"] ] I aware of pure JavaScript solutions for this problem, but since I am already using Lodash I am wondering if Lodash provides a better solution

问题 In the Lodash library, can someone provide a better explanation of merge and extend / assign. Its a simple question but the answer evades me nonetheless. 回答1: Here's how extend / assign works: For each property in source, copy its value as-is to destination. if property values themselves are objects, there is no recursive traversal of their properties. Entire object would be taken from source and set in to destination. Here's how merge works: For each property in source, check if that

问题 I am having a hard time trying to get the lodash modules imported. I\'ve setup my project using npm+gulp, and keep hitting the same wall. I\'ve tried the regular lodash, but also lodash-es. The lodash npm package: (has an index.js file in the package root folder) import * as _ from \'lodash\'; Results in: error TS2307: Cannot find module \'lodash\'. The lodash-es npm package: (has a defaut export in lodash.js i the package root folder) import * as _ from \'lodash-es/lodash\'; Results in:

问题 Why would someone prefer either the lodash.js or underscore.js utility library over the other? Lodash seems to be a drop-in replacement for underscore, the latter having been around longer. I think both are brilliant, but I do not know enough about how they work to make an educated comparison, and I would like to know more about the differences. 回答1: I created Lo-Dash to provide more consistent cross-environment iteration support for arrays, strings, objects, and arguments objects 1 . It has