lodash

问题 I am trying to display data using SectionList in React Native. I have written the code below displaying what I am trying to accomplish. I want the data to first be grouped together by date , and inside of that date, I need them grouped by location. A regular JavaScript solution will work. It's important that it has a title and data key. My input data is in this format: [ { game_id: 1171, date: '2018-11-17', location: 'Plaza' }, { game_id: 1189, date: '2018-11-17', location: 'Field - Kickball'

问题 I have a very weird issue in my lodash codes I have something like data = { 'id':'123', 'employee_name': 'John', 'employee_type': 'new' } var newObj = _.mapValues(data, function (value, key) { var t = _.camelCase(key); console.log(t) -> shows employeeName and employeeType return _.camelCase(key); }); I was expecting my newObj will become data = { 'id':'123', 'employeeName': 'John', 'employeeType': 'new' } after I ran the codes above, it still stays the same as it was like data = { 'id':'123',

问题 I've been searching an answer for that but didn't found it. I have an array like: const data2 = [{ "abc":{ companyCity:"Cupertino", conpanyName:"Apple" } }, { "def":{ companyCity:"Mountain View", conpanyName:"Google" } } ] And I'd like to convert to and array like omiting the parent keys: const data3 = [ { companyCity:"Cupertino", companyName:"Apple", }, { companyCity:"Mountain View", companyName:"Google" } ] Perhaps, libraries like lodash have a method to achieve that, but didn't find it.

问题 I have the following array of objects: const data=[ { "datetime": "2020-01-30T00:59:59.000Z", "Benzene": 3.6 }, { "datetime": "2020-01-30T00:59:59.000Z", "O3": 3.7 }, { "datetime": "2020-01-30T00:59:59.000Z", "PM10": 3.1 }, { "datetime": "2020-03-30T00:59:59.000Z", "Benzene": 2.6 }, { "datetime": "2020-03-30T00:59:59.000Z", "O3": 5.7 }, { "datetime": "2020-03-30T00:59:59.000Z", "PM10": 10.5 } ] I want to reshape it by grouping by Date only as follow: [{ "date":"2020-01-30", "values":[{"t":

问题 I have the following array of objects: const data=[ { "datetime": "2020-01-30T00:59:59.000Z", "Benzene": 3.6 }, { "datetime": "2020-01-30T00:59:59.000Z", "O3": 3.7 }, { "datetime": "2020-01-30T00:59:59.000Z", "PM10": 3.1 }, { "datetime": "2020-03-30T00:59:59.000Z", "Benzene": 2.6 }, { "datetime": "2020-03-30T00:59:59.000Z", "O3": 5.7 }, { "datetime": "2020-03-30T00:59:59.000Z", "PM10": 10.5 } ] I want to reshape it by grouping by Date only as follow: [{ "date":"2020-01-30", "values":[{"t":

问题 I use eslint to check my code ,and a error happen -- "error '_' is not defined no-undef". I write the code like this: new webpack.ProvidePlugin({ $: "jquery",//jquery jQuery: "jquery", "window.jQuery": "jquery", _:"lodash"//lodash }) and get .eslintrc.js, part of it like this: "env": { "browser": true, "commonjs": true, "es6": true, "jquery":true, }, before I add the jquery into ,it happen an error -- "error '_' is not defined no-undef". However, when I add lodash into ,just like that "

问题 I am trying to emulate inheritance in javascript using a the Lo-Dash javascript library. I am simply using _.extend to do so: function Parent() { var self = this; self.hello = function () { console.log('Hello from parent'); }; } function Child() { var self = this; _.extend(self, Parent); } Child.hello(); // Doesn't exist I thought this would work since all javascript functions are objects but obviously I am wrong. Why doesn't this work and how would I properly emulate inheritance using Lo

问题 I am trying to emulate inheritance in javascript using a the Lo-Dash javascript library. I am simply using _.extend to do so: function Parent() { var self = this; self.hello = function () { console.log('Hello from parent'); }; } function Child() { var self = this; _.extend(self, Parent); } Child.hello(); // Doesn't exist I thought this would work since all javascript functions are objects but obviously I am wrong. Why doesn't this work and how would I properly emulate inheritance using Lo

问题 I have a .txt file with this format: Part #368 - XXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX Part #369 - XXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

问题 We have managed to create the script below to remove any duplicate strings from an array. However, it is important that we keep the order of the array for when angular loops through them on an ng-repeat. In addition, we want the remaining elements to keep the same index. scope.feedback = _.map(_.pluck(item.possibleAnswers, 'feedback'), function (element, index, collection) { return collection.slice(0, index).indexOf(element) === -1 ? element : ''; }); This code above works however we feel