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1

JavaScript Array sort() Method - …

September 13, 2018

The sort() method sorts the items of an array. The sort order can be either alphabetic or numeric, and either ascending (up) or descending (down). By default, the ...Exemple de codevar points = [40, 100, 1, 5, 25, 10];points.sort( function(a, b) {return a-b} ); // ascending order// At this point, points = [1,5,10,25,40,100]points.sort( function(a, b) {return b-a} ); // sort descending orderSee more on w3schoolsCeci vous a-t-il été utile ?Merci ! Commentaires supplémentairesArray.prototype.sort() - JavaScript | MDNTraduire cette pagehttps://developer.mozilla.org/.../Reference/Global_Objects/Array/sortThe sort() method sorts the elements of an array in place and returns the array. The sort is not necessarily stable. The default sort order is according to string ...

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2

JavaScript Array sort: Sorting an Array …

September 13, 2018

This tutorial shows you how to use the JavaScript array sort method to sort arrays of numbers, arrays of strings, and arrays of objects by a property.

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3

Sorting an array of JavaScript objects - …

September 13, 2018

Sorting an array of JavaScript objects. ... Let's create a method to sort arrays being able to arrange objects by ... How to sort an array in JavaScript in a ...Sort homes by price in ascending order: homes.sort(function(a, b) { return parseFloat(a.price) - parseFloat(b.price); }); Or after ES6 version: homes.sort((a, b) => parseFloat(a.price) - parseFloat(b.price)); Some documentation can be found here .Meilleure réponse · 1336Here's a more flexible version, which allows you to create reusable sort functions, and sort by any field. var sort_by = function(field, reverse, primer){ var key = primer ? function(x) {return primer(x[field])} : function(x) {return x[field]}; reverse = !reverse ? 1 : -1; return function (a, b) { return a = key(a), b = key(b), reverse * ((a > b) - (b > a)); } } Now you can sort by any field at will... var homes = [{ "h_id": "3", "city": "Dallas", "state": "TX", "zip": "75201", "price": "162500" }, { "h_id": "4", "city": "Bevery Hills", "state": "CA", "zip": "90210", "price": "319250" }, { "h_id": "5", "city": "New York", "state": "NY", "zip": "00010", "price": "962500" }]; // Sort by price high to low homes.sort(sort_by('price', true, parseInt)); // Sort by city, case-insensitive, A-Z homes.sort(sort_by('city', false, function(a){return a.toUpperCase()}));625To sort it you need to create a comparator function taking two arguments. Then call the sort function with that comparator function as follows: // a and b are object elements of your array function mycomparator(a,b) { return parseInt(a.price, 10) - parseInt(b.price, 10); } homes.sort(mycomparator); If you want to sort ascending switch the expressions on each side of the minus sign.127for string sorting in case some one needs it, var dataArr = { "hello": [{ "id": 114, "keyword": "zzzzzz", "region": "Sri Lanka", "supportGroup": "administrators", "category": "Category2" }, { "id": 115, "keyword": "aaaaa", "region": "Japan", "supportGroup": "developers", "category": "Category2" }] }; var sortArray = dataArr['hello']; sortArray.sort(function(a,b) { if ( a.region < b.region ) return -1; if ( a.region > b.region ) return 1; return 0; } );34If you have an ES6 compliant browser you can use: Arrow functions Number() function sort() function The difference between ascending and descending sort order is the sign of the value returned by your compare function: var ascending = homes.sort((a, b) => Number(a.price) - Number(b.price)); var descending = homes.sort((a, b) => Number(b.price) - Number(a.price)); Here's a working code snippet: var homes = [{ "h_id": "3", "city": "Dallas", "state": "TX", "zip": "75201", "price": "162500" }, { "h_id": "4", "city": "Bevery Hills", "state": "CA", "zip": "90210", "price": "319250" }, { "h_id": "5", "city": "New York", "state": "NY", "zip": "00010", "price": "962500" }]; homes.sort((a, b) => Number(a.price) - Number(b.price)); console.log("ascending", homes); homes.sort((a, b) => Number(b.price) - Number(a.price)); console.log("descending", homes);28You want to sort it in Javascript, right? What you want is the sort() function . In this case you need to write a comparator function and pass it to sort() , so something like this: function comparator(a, b) { return parseInt(a["price"], 10) - parseInt(b["price"], 10); } var json = { "homes": [ /* your previous data */ ] }; console.log(json["homes"].sort(comparator)); Your comparator takes one of each of the nested hashes inside the array and decides which one is higher by checking the "price" field.22I recommend GitHub: Array sortBy - a best implementation of sortBy method which uses the Schwartzian transform But for now we are going to try this approach Gist: sortBy-old.js . Let's create a method to sort arrays being able to arrange objects by some property. Creating the sorting function var sortBy = (function () { var toString = Object.prototype.toString, // default parser function parse = function (x) { return x; }, // gets the item to be sorted getItem = function (x) { var isObject = x != null && typeof x === "object"; var isProp = isObject && this.prop in x; return this.parser(isProp ? x[this.prop] : x); }; /** * Sorts an array of elements. * * @param {Array} array: the collection to sort * @param {Object} cfg: the configuration options * @property {String} cfg.prop: property name (if it is an Array of objects) * @property {Boolean} cfg.desc: determines whether the sort is descending * @property {Function} cfg.parser: function to parse the items to expected type * @return {Array} */ return function sortby (array, cfg) { if (!(array instanceof Array && array.length)) return []; if (toString.call(cfg) !== "[object Object]") cfg = {}; if (typeof cfg.parser !== "function") cfg.parser = parse; cfg.desc = !!cfg.desc ? -1 : 1; return array.sort(function (a, b) { a = getItem.call(cfg, a); b = getItem.call(cfg, b); return cfg.desc * (a < b ? -1 : +(a > b)); }); }; }()); Setting unsorted data var data = [ {date: "2011-11-14T16:30:43Z", quantity: 2, total: 90, tip: 0, type: "tab"}, {date: "2011-11-14T17:22:59Z", quantity: 2, total: 90, tip: 0, type: "Tab"}, {date: "2011-11-14T16:28:54Z", quantity: 1, total: 300, tip: 200, type: "visa"}, {date: "2011-11-14T16:53:41Z", quantity: 2, total: 90, tip: 0, type: "tab"}, {date: "2011-11-14T16:48:46Z", quantity: 2, total: 90, tip: 0, type: "tab"}, {date: "2011-11-14T17:25:45Z", quantity: 2, total: 200, tip: 0, type: "cash"}, {date: "2011-11-31T17:29:52Z", quantity: 1, total: 200, tip: 100, type: "Visa"}, {date: "2011-11-14T16:58:03Z", quantity: 2, total: 90, tip: 0, type: "tab"}, {date: "2011-11-14T16:20:19Z", quantity: 2, total: 190, tip: 100, type: "tab"}, {date: "2011-11-01T16:17:54Z", quantity: 2, total: 190, tip: 100, type: "tab"}, {date: "2011-11-14T17:07:21Z", quantity: 2, total: 90, tip: 0, type: "tab"}, {date: "2011-11-14T16:54:06Z", quantity: 1, total: 100, tip: 0, type: "Cash"} ]; Using it Arrange the array, by "date" as String // sort by @date (ascending) sortBy(data, { prop: "date" }); // expected: first element // { date: "2011-11-01T16:17:54Z", quantity: 2, total: 190, tip: 100, type: "tab" } // expected: last element // { date: "2011-11-31T17:29:52Z", quantity: 1, total: 200, tip: 100, type: "Visa"} If you want to ignore case sensitive, set the parser callback: // sort by @type (ascending) IGNORING case-sensitive sortBy(data, { prop: "type", parser: (t) => t.toUpperCase() }); // expected: first element // { date: "2011-11-14T16:54:06Z", quantity: 1, total: 100, tip: 0, type: "Cash" } // expected: last element // { date: "2011-11-31T17:29:52Z", quantity: 1, total: 200, tip: 100, type: "Visa" } If you want to convert the "date" field as Date type: // sort by @date (descending) AS Date object sortBy(data, { prop: "date", desc: true, parser: (d) => new Date(d) }); // expected: first element // { date: "2011-11-31T17:29:52Z", quantity: 1, total: 200, tip: 100, type: "Visa"} // expected: last element // { date: "2011-11-01T16:17:54Z", quantity: 2, total: 190, tip: 100, type: "tab" } Here you can play with the code: jsbin.com/lesebi Thanks to @Ozesh by his feedback, the issue related to properties with falsy values was fixed.20Use lodash.sortBy , (instructions using commonjs, you can also just put the script include-tag for the cdn at the top of your html) var sortBy = require('lodash.sortby'); // or sortBy = require('lodash').sortBy; Descending order var descendingOrder = sortBy( homes, 'price' ).reverse(); Ascending order var ascendingOrder = sortBy( homes, 'price' );15This could have been achieved through a simple one line valueof() sort function. Run code snippet below to see demo. var homes = [ { "h_id": "3", "city": "Dallas", "state": "TX", "zip": "75201", "price": "162500" }, { "h_id": "4", "city": "Bevery Hills", "state": "CA", "zip": "90210", "price": "319250" }, { "h_id": "5", "city": "New York", "state": "NY", "zip": "00010", "price": "962500" } ]; console.log("To sort descending/highest first, use operator '<'"); homes.sort(function(a,b) { return a.price.valueOf() < b.price.valueOf();}); console.log(homes); console.log("To sort ascending/lowest first, use operator '>'"); homes.sort(function(a,b) { return a.price.valueOf() > b.price.valueOf();}); console.log(homes);7You can use the JavaScript sort method with a callback function: function compareASC(homeA, homeB) { return parseFloat(homeA.price) - parseFloat(homeB.price); } function compareDESC(homeA, homeB) { return parseFloat(homeB.price) - parseFloat(homeA.price); } // Sort ASC homes.sort(compareASC); // Sort DESC homes.sort(compareDESC);3javascript - Reordering arraysSort array of objects by string property value in JavaScriptAfficher plus de résultatsJavaScript Array Sort - W3SchoolsTraduire cette pagehttps://www.w3schools.com/js/js_array_sort.aspWell organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, PHP, and XML.

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4

Sorting a JavaScript array using array.sort()

September 13, 2018

Sorting arrays in JavaScript is done via the method array.sort(), a method that's probably as much misunderstood as it is underestimated. While calling sort() by ...

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5

JavaScript Array Filter: Filtering Array …

September 13, 2018

This tutorial shows you how to use the JavaScript array filter method to filter elements in an array based on a specified condition.

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6

How to sort multidimensional array …

September 13, 2018

A protip by jeanmask about js, array, collection, javascript, sort, and multisort.

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7

Quick Tip: How to Sort an Array of …

September 13, 2018

Olayinka Omole shows you how to dynamically sort an array of objects in JavaScript, using Array.prototype.sort() and a custom compare function.

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8

JavaScript - Array sort() Method - …

September 13, 2018

JavaScript Array sort() Method - Learn Javascript in simple and easy steps. A beginner's tutorial containing complete knowledge of Javascript …

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9

Sort an Array of Objects by Property …

September 13, 2018

Array.prototype.sort allows you to sort JavaScript array's using sort. The Array.sort method allows you to sort an array with a callback function, ascending or ...

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10

Learn How to Use JavaScript Array Sort …

September 13, 2018

JavaScript array sort method: easy to understand tutorial about JavaScript array.sort method. JavaScript array sort examples included.

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11

jquery sort array by index — SitePoint

September 13, 2018

Quick example on how to use JavaScript to sort arrays by index values. To analyse the best method of doing this in terms of performance I looked at a JS perf test for ...

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12

Using JavaScript's sort Method for …

September 13, 2018

In this post we're digging into the array sort method for sorting strings, especially when it comes to strings with mixed cases.

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13

JavaScript Sort by Two Fields (Example) - …

September 13, 2018

A protip by davidcollingwood about multiple, javascript, and sort.

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14

Java.util.Arrays.sort(int[]) Method Example

September 13, 2018

The java.util.Arrays.sort(int[]) method sorts the specified array of ints into ascending numerical order. package com.tutorialspoint; import java.util.Arrays; public ...

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