// [{"username":"John","score":36,"active":true},{"username":"Jake","score":50,"active":true}], // [{"username":"Bill","score":20,"active":false}], // {"username":"John","score":36,"active":true}, // {"username":"Jake","score":50,"active":true}, // {"fail":[2,4,3,7,8],"pass":[20,32,42,256]}, // [{"user":"barney","age":34},{"user":"barney","age":36},{"user":"fred","age":40},{"user":"fred","age":48}], // [{"user":"barney","age":36},{"user":"barney","age":34},{"user":"fred","age":48},{"user":"fred","age":40}], // => [{"id":4,"name":"A"},{"id":3,"name":"B"},{"id":1,"name":"C"},{"id":6,"name":"D"},{"id":5,"name":"E"},{"id":2,"name":"F"}], // {"id":3,"name":"Charlie","age":10}, // {"29":[{"name":"Jane","age":29}],"30":[{"name":"John","age":30},{"name":"Jack","age":30}]}, // [{"user":"barney","age":36,"active":false}], // [{"user":"fred","age":40,"active":true}], // [ -5, -1, 3, 5, 6, 7, 27, 42, 52, 158 ], Qiita Advent Calendar 2020 に参加してQiitaオリジナルグッズをもらおう, you can read useful information later efficiently. mit lodash.groupBy. assign, defaults, defaultsDeep, includes, merge, orderBy, and sortBy. Instead of going for recursive, you can try this: classPromise = array.map(function(obj){ return obj.save();}); in es6, same thing can be: classPromise = array.map(obj => obj.save()); Edit You can reduce the whole function to: function myFunction(array, value) { if ( !array || !array.length) return; console.log("array: " + array.length); if (!value) value... Ok, so i tried to decypher what you meant with your Question. The only purpose of this file would be to run the server. KnockoutJS custom component loader not executing `loadViewModel`, Error: [$injector:unpr] Unknown provider: RestangularProvider, slideToggle state not working with multiple boxes, Automatically calling server side class without, How to send current page number in Ajax request, Javascript function to validate contents of an array, Dynamically resize side-by-side images with different dimensions to the same height, Not able to access variables in required file, Can't call fetch directly in Backbone model listenTo, session value in javascript cannot be set, Replacing elements in an HTML file with JSON objects, want to show and hide text using “this” jquery, Insert data in collection at Meteor's startup, JSLint error: “Expected a newline at EOF”, conflict with Beautify plugin, Merge and sum values and put them in an array, How to use a service with Http request in Angular JS, Wordpress log out using URL and redirect to specify page, Javascript sort array of objects in reverse chronological order, Background-image style with JS not working in ie9, Click on link next link should be display on same page, Uncaught error: Invalid type for google table column, Javascript change the souce of all images present inside a string, submitting form then showing loading image by javascript, Onclick add html content and remove it by clicking “delete” link, Get all prices with $ from string into an array in Javascript, Create array from another with specific indices, Javscript Replace Text in tags without changing children element HTML and Content. The iteratee is invoked with three arguments: Important: Note that, while many Lodash methods are null safe (e.g. lodash supports multiple sorting keys by the "pluck" syntax, but only can deal with ascending sorting this way. Or maybe use some client side variables that, for some aspects, are similar to session (they will be forever... obj.roles[0] is a object {"name":"with whom"}. 公式)Gets the size of collection by returning its length for array-like values or the number of own enumerable string keyed properties for objects. I think you meant either one of those values, in that case var arr = ['bat', 'ball']; var selectors = arr.map(function(val) { return ':contains(' + val + ')' }); var $lis = $('ul li').filter(selectors.join()); $lis.css('color', 'red')