backend interview questions and answers

calling, apply, bind, and so on ). The second is to call the object method and output John Doe. 25. Give you a DOM element, create a function that can access all the child elements of the element, and pass each child element to the specified callback function. The function accepts two parameters: DOM The specified callback function. The original article uses Depth-First-Search to provide an implementation: function Traverse(p_element,p_callback) { p_callback(p_element); var list = p_elem

at run timeitem = listofstring.get (0); No explicit type conversions are required – compiler auto-conversionThese are frequently-occurring questions and Answers in a Java generic interview. All of these interview questions are not difficult, in fact they are based on generi

NULL5 8 NULLNULL NULL 9------------------------------------------1)Select a. department name Dname,b. Performance YJ as ' January ', c. Performance YJ as ' February ', d. performance YJ as ' March 'From table1 a,table2 b,table2 c,table2 DWhere a. DEP Department = B. DEP department and b. Month Mon = ' January ' andA. Department dep = c. DEP department and c. Month Mon = ' February ' andA. Department dep = D. Department DEP and d. Month Mon = ' March ' and2)Select A.DEP,SUM (case if B.mon=1 then

paste the header file of the implementation code to see which sort algorithms are implemented here: # Ifndef SORT_ALGORITHM_H # define SORT_ALGORITHM_H/* swap function */void swap (int a, int B);/* bubble sort */void BubbleSort (int * array, int n);/* fast sorting */int partition (int * array, int low, int high); void QuickSort (int * array, int low, int high ); /* select sorting */void SelectSort (int * array, int n);/* heap sorting */void createHeap (int * array, int n ); void adjustHeap (

fault tolerance strategy for service reading and writing?31. What are the packages that Dubbo must rely on?32. What can the Dubbo management console do?33, talk about the process of Dubbo service exposure.34, Dubbo Stop maintenance?35. What is the difference between Dubbo and Dubbox?36. Do you also know about other distributed frameworks?37. Can Dubbo integrate Spring Boot?38, in the use of the process have encountered some problems?39. Have you read the source code of Dubbo?40. Do you think it

Links: http://ifeve.com/spring-interview-questions-and-answers/Original: Http://www.javacodegeeks.com/2014/05/spring-interview-questions-and-answers.html%20Spring Overview What is Spring?Spring is an open-source development framework for Java Enterprise applications. Spr

This is the choice of 10 HTML5 interview questions and gives the answer. This is the most common interview problem for WEB developers, and I'm sure you will find your understanding improved after you have mastered these important interview questions. Let's take a look.Relate

In recent years, more and more Silicon Valley technology companies have begun to use the puzzle interview method. These companies are not interested in the correct answer, but in the way and ability of candidates to solve the problem. In China, whether it's a new graduate or a jobProgramWhen applying for work in programming and software development, recruiters will always arrange a written test to examine their programming and logic analysis capabilit

original address.Redirect is the server based on logic, send a status code, tell the browser to request the address again, in general, the browser will use all the parameters just requested again, so the session,request parameters can be obtained.3 The difference between a dynamic include and a static include in a JSPA collection of questions and answers about Java technology delivered inside the companyDy

example, a landing page, using the PO mode, will create a LoginPage class, the class will define the user name input box, password input box, login button webelenentFor the corresponding element to implement the corresponding method, the input box is used to input, you need to create a user name and enter the password method, so that the real page consistent, so the design concept is PO mode. The pagefactory belongs to the PO mode, which is used to initialize the page Class of each PO pattern i

Some typical examples, such as handwritten sorting algorithms and some basic mathematical problems, are not listed here. The following sorting out some representative, reference value questions, real interview questions, there can be no standard answer, or attached to my answer, welcome to discuss.Question 1. Indicate which of the following are of value type?int

Advanced PHP face questions and partial answers See some advanced PHP interview topics on the web. Nothing to do, got some answers ... may not be very comprehensive, leave this after the spare bar. I. Basic knowledge points1.1 The meaning of several status codes in the HTTP protocol: 503 500 401 403 404 200 301 302 ..

See some advanced PHP interview topics on the web.Nothing to do, got some answers ... may not be very comprehensive, leave this after the spare bar.I. Basic knowledge points1.1 The meaning of several status codes in the HTTP protocol: 503 500 401 403 404 200 301 302 ...200: The request is successful and the requested data is returned with it.301: Permanent redirect.302: Temporary row redirection.401: The cu

Transferred from: http://www.importnew.com/10980.htmlIn this article we are going to discuss the different types of face questions in a Java interview, which allow employers to test the candidate's Java and common object-oriented programming capabilities. The following sections are divided into two chapters, the first of which will discuss object-oriented programming and its features, common

In this article we are going to discuss the different types of face questions in a Java interview, which allow employers to test the candidate's Java and common object-oriented programming capabilities. The following sections are divided into two chapters, the first of which will discuss object-oriented programming and its features, common questions about Java an

In this article we are going to discuss the different types of face questions in a Java interview, which allow employers to test the candidate's Java and common object-oriented programming capabilities. The following sections are divided into two chapters, the first of which will discuss object-oriented programming and its features, common questions about Java an

In this article we are going to discuss the different types of face questions in a Java interview, which allow employers to test the candidate's Java and common object-oriented programming capabilities. The following sections are divided into two chapters, the first of which will discuss object-oriented programming and its features, common questions about Java an

Beg for the answers to these 10 questions! All participants are rewarded! The 10 are clearly stated at least 90 points ...... (This is sincere !) Uncle comeonAV8D! (It's really hard to pass a broken picture) back to the truth. this is a Post posted by someone else, but I really want to know the answer to these questions (the clearer the better), so I am sending i

Answers to questions about python Regular Expressions and python Regular Expressions Three questions about python Regular Expressions: 1. Remove tags from the following html files and only display text information. Use the sub method in the python Regular Expression re module to replace the tag with an empty string. The Code is as follows: #-*-Coding: UTF-8-*-i

, background development involves a lot of operating systems, compiling principles, the principle of computer composition and other underlying knowledge, learn this knowledge, you can find a lot of related work, not just Linux c++/c backend server development. Many of the best programmers I know have a pretty good understanding of the bottom, and you're right to work in that direction.By the way, you are only a freshman now, there is no need to set yo