Is it possible to utilize express4 with underscore.js, specifically for printing the variable "name" in index.ejs? Are there any alternative methods within underscore.js that work well with node.js and Express4 capabilities? Note: underscore.js and Expre ...
Some Background Info I am working on creating a feed similar to Twitter where each row expands on click to show more information. The data is fetched from a JSON file sent from the backend to the frontend, and I am using Backbone.js for rendering. My fee ...
let name = "someName"; if(name !== null) { // perform some action } Currently, I am utilizing http://underscorejs.org/#isNull. How can I achieve the same functionality using underscore.js? Is there any noticeable performance enhance ...
Initially, I believed that my code was clever for accomplishing this task: someFunction = (arg1, arg2, arg3) -> if _.some(arguments, (a) -> a is undefined) throw new Error "undefined parameter" My goal was to throw an error if any of the para ...
Given two arrays: firstArray = [{id: 'id1'}, {id:'id2'}, {id:'id3'}, {id:'id3'}] secondArray = [{id: 'id1'}, {id:'id2'}, {id:'id3'}] The expected output is [{id:'id3'}] This ...
I'm encountering an issue with sinon's fakeTimers while working in a setup that includes Marionette.js, underscore, and chai test runner. Strangely, when I place a breakpoint in Chrome and step through the code, my timer functions as expected. However, if ...
I'm a bit confused about how to arrange an unordered list by the content of the span within each list item. Here is my HTML code: <ul id="appsList"> <li><span>aa</span> <span class="sort">android< ...
How can I resolve the error I encountered while attempting to install packages using npm? Here is my packages file: "dependencies": { "express": "~3.3.6", "socket.io": "0.9.16", "jade": "~0.35.0", "less-middleware": "~0.1.12", "redis ...
I have an array of objects that looks like this: profData=[{"Details":{"CODE":"PAT4PAS","DESCRIPTION":"PASTIE 4N20 12 X 175G","LOCATION":"FREEZER","UNITS":"BOX","WAREHOUSE":"00","AVAILABLE":"15.0000","ON_HAND":"15.0000","BRAND":"4N20","PRICE1":"18.80"," ...
Here is the data I am working with: Initial set of data: var input = [ {ru: "R201", area: "211", unit: "211"}, {ru: "R201", area: "212", unit: "NONE"}, {ru: "R201", area: "HCC", unit: "NONE"}]; Desired result data: var result = [ {area: ...
Suppose we have an HTML structure like this: <nav data-filters class=""> <input type="radio" name="type" value="company" checked>Company <input type="radio" name="type" value="product">Product <input type=" ...
My goal is to showcase the details from the given object on the user interface using Angular's ng-repeat. It is essential for me to arrange the key/value pairs based on their values and exhibit them in sequential order in an array from highest to lowe ...
I am attempting to dynamically load underscorejs using XMLHttpRequest and eval function function includeScriptSync(scriptUrl) { var xmlhttp = new XMLHttpRequest(); xmlhttp.open("GET", scriptUrl, false); xmlhttp.onreadystatechange = function() ...
I have received an object from a legacy server that I need to restructure on the client-side using JavaScript, jQuery, or Underscore.js. Here is the original structure of the object: [ { "Id":{ "LValue":1, "Value":1 }, ...
Do these two options offer different levels of performance? Which one excels at conducting deep comparisons? I've encountered situations where Angular's equals function fails to detect certain differences. In addition, I've observed that the Angular versi ...
Is there a way to organize the fixtures from this data into separate divs based on the matchday attribute? I've tried using Underscore's groupBy function but I'm unsure how to dynamically distribute the data into individual divs for each re ...
I am working with an array of objects (arr) where each object consists of 3 properties (Department, Categories, ProductTypes). The values for these properties are a mix of upper and lower case. To perform a comparison between arr and a search filter (alrea ...
Hey there, I'm facing a challenge where I need to extract the values of wave1 and wave2 from an array using underscore.js. array = [{"id":1,"name":"Monoprix", "pdv":16,"graph":[{"wave1":22,"wave2":11}]} ; I attempted the following: $scope.wave1 = a ...
var persons = [ {name : "Alice", location : "paris", amount : 5}, {name : "Bob", location : "tokyo", amount : 3}, {name : "Eve", location : "london", amount : 10} ]; var filteredResults=_.pluck(_.where(persons, {location : "paris"}), 'nam ...
What is the best way to extract specific objects from a group when one of their properties has an array value, specifically using _.lodash/underscore? { "tileRecords" : [ { "tileName" : "Fama Brown", "tileGroup" : ["Polished", "Matt", ...
What is the most efficient method for locating an object by a specific key in JS when given an array of objects? Utilizing jQuery and underscoreJS is acceptable. I am simply seeking the simplest solution with minimal code. Illustration: Suppose we have a ...
For some reason, I am struggling to get mouse events to work on my backbone view after it is re-rendered. It seems like the only solution is to use a rather convoluted jQuery statement: $("a").die().unbind().live("mousedown",this.switchtabs); I initially ...
Here is an array of objects showcasing equipment images: var jsonarray = [{ "id": "6", "equipment_img": "http://xxx:9696/XXX/images (1)_410.jpg" }, { "id": "7", "equipment_img": "http://xxx:9696/XXX/5.jpg" }, { "id": "8", "equipmen ...
I am working on a jQuery function that needs to perform like the "like" operator. Can anyone help me achieve this? Your assistance is greatly appreciated. The function currently only works if I search for the whole word, for example: var vsearch = "home" ...
My challenge involves parsing a JSON array into a map object, with the key being the state and the value being an array of objects that share the same state. An example JSON data set is provided below: { "totalRec": 10, "content": [ { "name" ...
Currently, I am working on a project in JavaScript and have created an array called folders that holds multiple objects: folders = [folder1, folder2, folder3...] Each object within the array has various properties, one of which is docs that is an array o ...
My question is quite simple. I am using Node.js with Underscore as the templating engine, all within the Expressjs framework. I am attempting to create partials similar to other programming languages: <% include('header') %> <body id ...
Check out the library code at line 860: https://github.com/jashkenas/underscore/blob/master/underscore.js if (remaining <= 0 || remaining > wait) Under what circumstance would the second part of this statement be true? Background - This is my firs ...
I am a beginner in JavaScript. Could you please explain how to achieve the following output? * "a" -> "a1" * "aabbbaa" -> "a2b3a2" I attempted using a hash map, but my test cases are failing. Below is the code I have writt ...
Is there a way to determine the number of occurrences of the 'value' key within an object that is part of an array, and then add the count to each value if applicable? In this case, 'a' represents the original data var a = [ { id: 1, value: "1000 ...
Is there a simple way to collect each property value in an array of objects into separate property arrays using underscore or angularjs utilities? For instance, consider the following array of objects: $scope.expNumArray = []; $scope.itemHrArray = []; $s ...
My current data structure looks like this: var data = [ { MainHeader: Header1, SubHeader: 'one'}, { MainHeader: Header1, SubHeader: 'two'}, { MainHeader: Header2, SubHeader: 'three'}, { MainHeader: Header2, SubHea ...
Currently, I am in the process of constructing a Sudoku board using underscores templating. However, I have hit a roadblock when it comes to tackling the mathematical aspects necessary for deriving the table structure. My approach involves utilizing a 1d ...
Here is an array of objects that I am working with: var items = [ { id: 1, name: "Item 1", categories: [ { id: 1, name: "Item 1 - Category 1" }, { ...
Looking for a simple solution to merge, flatten, and concatenate multiple multi-dimensional arrays in JavaScript in a specific manner (from right to left) # Example [['.class1', '.class2'], ['.class3', ['.class4', '.class5', ...], ['.class6'], ...]] # OR ...
I'm on a quest to extract the distinct items in every column of a JSON array. Here is what I aim to convert : var items = [ {"name": "Type 1","id": 13}, {"name": "Type 2","id": 14}, {"name": "Type 3","id": 14}, {"name": "Type 3","id": 13}, {"name": ...
I attempted to utilize underscore in Visual Studio Code and found that it only works if I include this line of code at the beginning: var _ = require('underscore'); The output functions properly with this code in place. However, if I remove it, an error o ...
Imagine we have an array of objects: ["c", "a", "b", "d"] Is there a way in ECMAScript or through a third-party JavaScript library to rearrange the objects in the first array to match the order specified by the second array, all within one line or functi ...
I encountered an error when attempting to load one of my underscore templates. It seems to be related to an issue in the for loop, which I suspect should be a .each loop, but I'm still trying to grasp its structure. Here is a snippet of my template: ...
I have a unique webpage that showcases an impressive collection of books. Each book listed on the page comes with essential information such as the title, price, and description. This data is imported from a JSON file. Excitingly, when users click on any ...
My array consists of different subjects: var subject = ["Tamil", "English", "Math"]; Now, I want to transform this array into an object, structured like this: [{ "name": "Tamil" }, { "name": "English" }, { "name": "Math" }] ...
Despite my efforts to search online, I couldn't find a solution for resetting the _.after counter once the code inside has been executed. The goal here is to have the alert box appear only on every 5th click of the button: var cb; cb = _.after(4, functio ...
I am working with an array of arrays that looks like this: [[0,0], [0,1], [0,2], [0,3]...] My goal is to randomly select N elements from the array using Underscore's _.sample method: exampleArr = [[0,0], [0,1], [0,2], [0,3]...] _.sample(exampleArr, 3) / ...
I have a dataset in JSON format (as shown below) and I am attempting to use the _.where method to extract specific values from within the dataset. JSON File "data": [{ "singles_ranking": [116], "matches_lost": ["90"], "singles_high_rank": [79 ...
I am currently developing a web application using node.js, express, and underscoreJS. As I was exploring the functionality, I came across this piece of code: app.use(express.static(__dirname + '/public')); The application seems to perform better with th ...
This block of code is an excerpt from the Underscore library, specifically showcasing the implementation of the _.bind function. However, I am struggling to comprehend the purpose behind modifying the prototype of an empty function. var customConstruc ...
[ { "id": 1, "description": "Empty the garbage bin", "completed": false }, { "id": 2, "description": "Dine out for dinner", "completed": false }, { "id": 3, "description": "Exercise at the fitness center", "com ...
Is there any benefit to utilizing a closure in an underscore template for purposes such as keeping track of counters? Here's a simple example: <% (function( models ){ var length = models.length-1, section = ""; _.each( models, function ( ...
Can you help me determine if these statements are equivalent? myApp.filter('myFilter', function() { var result, i, sport, y, contains, league; return function(sports, filterBy) { if (angular.isUndefined(sports) || !filterBy) { return sp ...