object

问题 Assuming i have a <div class="test" style="width:200px"></div> ,Please consider the following: var m = $('.test')[0]; var $md = $(m); console.log($md.width()); //200 var o = $('.test'); console.log(o.width()); // 200 console.log(m); // <div class="test" style="width:200px"> console.log($md); // Object{ context: <div.test> ..... } console.log(o); // Object{ length:1 , ..... } Basically i can apply the width method on either var $md or var o , so what's the difference between the 1st and 2nd

问题 I have a JSON response like this: { id_order: '123123asdasd', products: [ { description: 'Product 1 description', comments: [ { id_comment: 1, text: 'comment1' }, { id_comment: 2, text: 'comment2' } ] } ] } How can I remove, with lodash, one object which has an id_comment that is equal to 1, for example? Tried using _.remove without success. Solution https://jsfiddle.net/baumannzone/o9yuLuLy/ 回答1: You can use _.remove inside an forEach using an object as the predicate: _.forEach(obj.products,

问题 I have a JSON response like this: { id_order: '123123asdasd', products: [ { description: 'Product 1 description', comments: [ { id_comment: 1, text: 'comment1' }, { id_comment: 2, text: 'comment2' } ] } ] } How can I remove, with lodash, one object which has an id_comment that is equal to 1, for example? Tried using _.remove without success. Solution https://jsfiddle.net/baumannzone/o9yuLuLy/ 回答1: You can use _.remove inside an forEach using an object as the predicate: _.forEach(obj.products,

问题 I am a beginner python user. Having trouble getting data from csv into python in the required object format to satisfy a python function. If I manually created the data in python (rather than bringing it in from csv) the following code works: class Student(object): pass john = Student() #score tuple john.score = (85.0, 42.0/2.0) bob = Student() bob.score = (45.0, 19.0/2.0) john.rank = 1 bob.rank = 2 ExternalCode.AdjustStudents([john, bob]) However I need it to work automatically and not have

问题 I got an array person containing many objects that look like this: const person = [ { first: 'firstName', last: 'lastName', year: 1439, passed: 1495 }, ... ] I have counted how many years the person lived: const oldest = person.map(x => x.passed - x.year); Got new array with the years for every person. Now I would like to push this calculated year as a new property age to each person object in this array. Can you help me out? 回答1: You could add a new property person.forEach(p => p.lifetime =

问题 I was wondering if anyone had any good ways of quickly explaining how to efficiently and pythonically create user defined objects with optional arguments. For instance, I want to create this object: class Object: def __init__(self, some_other_object, i, *j, *k): self.some_other_object = some_other_object self.i = i # If j is specified, assume it is = i if(j==None): self.j = i else: self.j = j # If k is given, assume 0 if(k==None): self.k = 0 else: self.k = k Is there a better way to do this?

问题 I was wondering if anyone had any good ways of quickly explaining how to efficiently and pythonically create user defined objects with optional arguments. For instance, I want to create this object: class Object: def __init__(self, some_other_object, i, *j, *k): self.some_other_object = some_other_object self.i = i # If j is specified, assume it is = i if(j==None): self.j = i else: self.j = j # If k is given, assume 0 if(k==None): self.k = 0 else: self.k = k Is there a better way to do this?

问题 So I am having trouble creating a function that will filter and sort dates and its data to be placed in an array of objects. The issue I am having is a different but similar scenario. The original question was taken from here: Filtering undefined from array of objects in Javascript Lets say that var arrObject has more than 2 items in an array. See code below.I want to filter any empty string or undefined values and with any items in the array and sort then asc. order by dates. In the new

问题 So I am having trouble creating a function that will filter and sort dates and its data to be placed in an array of objects. The issue I am having is a different but similar scenario. The original question was taken from here: Filtering undefined from array of objects in Javascript Lets say that var arrObject has more than 2 items in an array. See code below.I want to filter any empty string or undefined values and with any items in the array and sort then asc. order by dates. In the new

问题 I have object: const pairs = { A: { D: [1, 2, 3] }, B: { D: [3, 2, 1] }, C: { D: [4, 3, 2, 1], B: [0, 1, 2, 3] } }; How can I get it fliped? const fliped = { D: { A: [1, 2, 3], B: [3, 2, 1], C: [4, 3, 2, 1] }, B: { C: [0, 1, 2, 3] } }; ES6 solution will be great I tried something like, but find that im not very good with reduce method and start thinkind about ugly imperative solution: Object.entries(pairs).reduce( (acc, [key1, value]) => Object.keys(value).reduce( (acc, key2) => ({ ...acc,