1. Converting object of objects to array of objects If you have an object of objects and want to convert it to an array of objects, you can use theObject.values()method. constpeopleNames={obj1:{name:'Alice'},obj2:{name:'Bob'},};constarrayOfObjects=Object.values(peopleNames);conso...
Maximum number of nested objects to flatten. import{flatten}from'flat'flatten({key1:{keyA:'valueI'},key2:{keyB:'valueII'},key3:{a:{b:{c:2}}},{maxDepth:2})// {// 'key1.keyA': 'valueI',// 'key2.keyB': 'valueII',// 'key3.a': { b: { c: 2 } }// } transfor...
所有现代JS环境现在都支持Array.prototype.flat和Array.prototype.flatMap
This example will set an object with an array object, a normal object, and a nested object. We will flatten the entire object with the help ofthereduce()methodandconcat()method. Object.keys()will return an array with all the other objects inside, andconcat()will merge these objects. ...
So now we have a nested array. And we can useflat()to flatten the array. constnestedArray=[['jane',1],['john',2],];nestedArray.flat();// [ 'jane', 1, 'john', 2 ] Of course, we can shorten this and just callflatMap(). Let's take a look 👀 ...
isArray(item)) { result.push(...flatten(item)); } else { result.push(item); } }); return result; }; // 用例 const nested = [1, 2, 3, [4, 5, [6, 7], 8, 9]]; console.log(flatten(nested)); // [1, 2, 3, 4, 5, 6, 7, 8, 9] ...
4.2 Use Array#push instead of direct assignment to add items to an array. const someStack = []; // bad someStack[someStack.length] = 'abracadabra'; // good someStack.push('abracadabra');4.3 Use array spreads ... to copy arrays. // bad const len = items.length; const itemsCopy =...
An Office service that supports add-ins to interact with objects in Office client applications. 1,019 questions 1 answerOne of the answers was accepted by the question author. Nested App Authentication and makeEwsRequestAsync() Hi, I'm looking to upgrade to NAA some of our legacy Outlook add...
JavaScript 中的 Array 类型提供了一系列强大的实例方法。在这个专栏中,我将深入探讨一些常见的 Array 实例方法,解析它们的实现原理。 如果有错误或者不严谨的地方,请请大家务必给予指正,十分感谢。欢迎大家在评论区中讨论。 javascriptecmascript-6前端 赞收藏 ...
As we all know, inside an array return another array is nested array. Inside observable return another observable get Observable of Observable. The same inside Just return another Just, we get Just of Just: constprop = require('crocks/Maybe/prop');constpropPath = require('crocks/Maybe/propPath...