Array.prototype.sort()
※ Download: Javascript sort array of objects by key
Note: the ECMAscript standard does not guarantee this behaviour, and thus not all browsers e. Return value An array of strings that represent all the enumerable properties of the given object.
The main point of this function to sort is the localeCompare, a function of JavaScript included in the prototype of strings that returns a number indicating whether the string1 comes before, after or is the same as string2 in sort order values. Well, that means if you are trying to construct the new object after sorting it by property value or anything else, the property key ordering becomes again undefined.
Object.keys() - Sorting a an array of Objects in JavaScript To wrap up this tutorial, lets see a full blown example of using sort to create a numbers and word sorter!
The source for this interactive example is stored in a GitHub repository. If you'd like to contribute to the interactive examples project, please clone and send us a pull request. Return value An array of strings that represent all the enumerable properties of the given object. The ordering of the properties is the same as that given by looping over the properties of the object manually. Notes In ES5, if the argument to this method is not an object a primitive , then it will cause a. In ES2015, a non-object argument will be coerced to an object. toString: null . For a simple Browser Polyfill, see. Specifications Specification Status Comment Standard Initial definition. Implemented in JavaScript 1. Standard Draft Browser compatibility Desktop Mobile Server Chrome Edge Firefox Internet Explorer Opera Safari Android webview Chrome for Android Edge Mobile Firefox for Android Opera for Android iOS Safari Samsung Internet Node.
Not sure how slow it is. The time and space complexity of the sort cannot be guaranteed as it is implementation dependent. My belief is that a JavaScript object is a hash and no order should be assumed. Sorts keys recursively while preserving references. For example, if the value of the specified property is a string, a toUpperCase method is used to convert all its characters to uppercase, so character casing is ignored when sorting. To use ES6 in modern browsers use to transpile the code to ES5.
