object

问题 I am trying to sort a class array that has 5 values inside of it. 3 strings and 2 ints . I would like to sort the array from highest to lowest on the int values but can't figure out how to do so. My though process is to send the array into the class and then pull out the correct int value and sort for each array location without changing the other values of that location. How can I pull out these values so that I can sort them accordingly? If I could then I would know how to finish my code.

问题 I am trying to sort a class array that has 5 values inside of it. 3 strings and 2 ints . I would like to sort the array from highest to lowest on the int values but can't figure out how to do so. My though process is to send the array into the class and then pull out the correct int value and sort for each array location without changing the other values of that location. How can I pull out these values so that I can sort them accordingly? If I could then I would know how to finish my code.

问题 I thought that I realized this relationship: In Python everything is an object, and every object has a type. But what about classes? A class is a blueprint of an object, and an object is instance of a class. But I have read in an article that in Python, classes are themselves objects. I thought that an object cannot exist without its blueprint - its class. But, if class is an object, how it can exist? >>> type.__bases__ (<class 'object'>,) >>> int.__bases__ (<class 'object'>,) >>> str.__bases

问题 I am using JSHint to ensure my JavaScript is "strict" and I'm getting the following error: Expected an assignment or function call and instead saw an expression On the following code: var str = 'A=B|C=D' var data = {}; var strArr = str.split( '|' ); for (var i = 0; i < strArr.length; i++) { var a = strArr[i].split('='); a[1] && (data[a[0].toLowerCase()] = a[1]); // Warning from JSHint } Any ideas why I'm getting such an error or how I can code to remove the error. 回答1: Here is a simplified

问题 I want to update all password values from an object in all object levels: let obj = { user: { name: 'u1', password: 'do not show me' }, subUsers: [ { name: 'u2', password: 'do not show me as well' } ], whereverLevel : { password: 'please, hide me too' } } updateDeeply(obj, 'password', '********') //mutates obj and changes all password values in all object levels. Is there an API method like lodash _.set(...) ? 回答1: Simple recursive solution, handling objects and arrays, mutating input –

问题 I need to filter array of object by another array of object without knowledge of exact properties in criterias array. Let's take a look to example for better understanding. Here is an array that I need to filter const dataset = [ { id: "4", someval1: "10", someval2: "20", someval3: "30", someval4: "40" }, { id: "10", someval1: "10", someval2: "20", someval3: "30", someval4: "40" }, { id: "22", someval1: "102", someval2: "202", someval3: "302", someval4: "40" }]; Here is an array which has

问题 I need to filter array of object by another array of object without knowledge of exact properties in criterias array. Let's take a look to example for better understanding. Here is an array that I need to filter const dataset = [ { id: "4", someval1: "10", someval2: "20", someval3: "30", someval4: "40" }, { id: "10", someval1: "10", someval2: "20", someval3: "30", someval4: "40" }, { id: "22", someval1: "102", someval2: "202", someval3: "302", someval4: "40" }]; Here is an array which has

问题 I was just reading the Python documentation about classes; it says, in Python "classes themselves are objects". How is that different from classes in C#, Java, Ruby, or Smalltalk? What advantages and disadvantages does this type of classes have compared with those other languages? 回答1: In Python, classes are objects in the sense that you can assign them to variables, pass them to functions, etc. just like any other objects. For example >>> t = type(10) >>> t <type 'int'> >>> len(t.__dict__)

问题 I am attempting to pull data from a dynamic table using JQuery, but every way I've tried turns the values into something else (the below code will return an "l" instead of the N/A I was expecting. I have tried using .each and .map as the function as well as .val .html and as you can see .text to pull the data. I am stuck as to why and what I am doing wrong. Any help would be greatly appreciated. HTML <table id="attendees" class="attendees"> <thead> <tr style="border-bottom: double;border

问题 What's the best way to search through a JavaScript object of unknown depth and properties and replace all instances of given string? This works, but is it the best way? var obj = { 'a' : 'The fooman poured the drinks.', 'b' : { 'c' : 'Dogs say fook, but what does the fox say?' } } console.log (JSON.parse(JSON.stringify(obj).replace(/foo/g, 'bar'))); Fiddle: http://jsfiddle.net/93Uf4/3/ 回答1: Next to the way you proposed yourself, here is a classic loop approach. As mentioned by someone in a