node js interview questions github

[Algorithm Interview Questions] search for the nearest common ancestor node of the two nodes in the binary search tree Http://geeksforgeeks.org /? P = 1029 Given the value of any two nodes in a binary search tree, you need to write a C/C ++ program to find the closest common ancestor of the two nodes, you can assume that the given value exists in a

One of the frequently asked programming questions during the interview. The most direct method is to traverse the single-chain table, write down the number of nodes in the linked list, and traverse the table again until the number of nodes minus N is reached, and the result is returned. In reality, if the number of linked lists is large and N is relatively small, This method requires about two traversal ti

One of the frequently asked programming questions during the interview. The most direct method is to traverse the single-chain table, write down the number of nodes in the linked list, and traverse the table again until the number of nodes minus N is reached, and the result is returned. In reality, if the number of linked lists is large and N is relatively small, This method requires about two traversal ti

Gitbook is a command-line tool (node. JS Library) that we can borrow to make beautiful books using Github/git and markdown, but it's not a tutorial on git.Supports multiple formats for outputGitbook supports the output of multiple document formats, such as: Static site: Gitbook The default output of this format, the resulting static site can be directly

, relational, non-relational types have a practical introduction; This book also describes in detail node. JS is an example of a crawler that is especially useful for friends who like to " steal " things online, and a whole section to explain the Web for node. js Knowledge of safety development, etc., is a very broad

are .node used in the same way as the JS module except for the file extension. Although the binary module can use all the functions provided by the operating system, it has unlimited potential, but it is too difficult for the front-end students to write, and it is difficult to use across platforms.Interviewers usually ask: what is node.

、 Controller 非常薄，只起到路由的作用，而 View 非常厚，业务逻辑都部署在 View。所以，Backbone 索性取消了 Controller，只保留一个 Router（路由器）Mvp MVP 模式将 Controller 改名为 Presenter，同时改变了通信方向。 View ==> Presenter ==> Model Model ==> Presenter ==> View 1、 各部分之间的通信，都是双向的。 2、View 与 Model 不发生联系，都通过 Presenter 传递。 3、View 非常薄，不部署任何业务逻辑，称为"被动视图"（Passive View），即没有任何主动性，而 Presenter非常厚，所有逻辑都部署在那里。MVVMMVVM 模式将 Presenter 改名为 ViewModel，基本上与 MVP 模式完全一致。 唯一的区别是，它采用双向绑定（data-binding）：View的变动，自动反映在 ViewModel，反之亦然。Angular 和 Ember 都采用这种模式。

available within the code block until the variable is declared with the Let command. This is syntactically called a "temporary Dead zone" (Temporal Dead Zone, abbreviated as TDZ). Let variables cannot be declared repeatedlyLet does not allow the same variable to be declared repeatedly within the same scope. otherwise error:Uncaught SyntaxError: Identifier ‘XXX‘ has already been declaredFor example:let a = 0;let a = ‘sss‘;// Uncaught SyntaxError: Identifier ‘a‘ has already been declaredSumm

This article mainly shares several JavaScript interview questions. I hope this article will help you to pass the interview smoothly. For more information, see the relevant coders. 1. What are the two methods for creating JavaScript objects? This is a very simple problem if you have used JavaScript. You have at least learned one way. However, based on my experien

/requests, and improve program performance Cache usage Steps (1) Use the data, first to the cache to view, and then remove the use (2) no data in the cache, calculate/request, and then cache the Data. Cache application: Fibonacci Recursive functions Fibonacci-cut Sequence Optimization "cache" Script> varCache= {}; function Fn4(m){ if(cache[m]){ returncache[m]; } if(m=== 1 ||M=== 2){cache[m]= 1; return 1;

Differences between undefined, null, and NaN in JS, as well as interview questions about object attribute assignment, undefinednan (1) In the following three cases, the return type of typeof is undefined. -- When the variable is not initialized -- When the variable is undefined -- When the function does not return a specific value (undefined is returned when the

; } } } returnarr}//previous backward comparison, different push to new arrayArray.prototype.distinct2 =function () { vararr = This; vartemp = []; for(vari=0; i) { for(varj=i+1; j) { if(Arr[i] = = =Arr[j]) {J= ++i; }} temp.push (Arr[i])}returnTemp}//attributes that cannot be duplicated by using object property namesARRAY.PROTOTYPE.DISTINCT3 =function () { varobj = {}; vararr = This; vartemp = []; for(

= Currnode.next; } return Currnode; }, Findpre:function (item) {//Returns the previous node of the specified element var currnode = This.gethead (); while (currnode.next! = nullcurrnode.next.element!=item) { Currnode = Currnode.next; } return Currnode; }, Find:function (item) {if (item = = NULL) {return null; } var currnode = This.gethead (); while (Currnode currnode.element! =

Original reference Https://mp.weixin.qq.com/s/mCVL6qI33XeTg4YGIKt-JQ1. Event BrokerAdds an event to the parent element, using the event bubbling principle, to get child elements based on E.targetLet Parentbox = document.getElementById (' Parentbox ');Parentbox.addeventlistener (' click ', Function (e) {if (e.target e.target.nodename = = = ' LI ') {Let item = E.target;Console.log (item);}})2. Using closures in loopsvar arr = [1,2,3,4,5];for (var i=0; iSetTimeout (function () {Console.log (i)},10

Blog relocation, to bring you the inconvenience, please understand!http://www.suanliutudousi.com/2017/11/25/%e5%89%8d%e7%ab%af%e9%9d%a2%e8%af%95%e9%a2%98%ef%bc%8cjs%e9%a2%84%e5% a4%84%e7%90%86%e9%83%a8%e5%88%86%e5%b0%8f%e7%bb%93%e5%87%bd%e6%95%b0%e5%a3%b0%e6%98%8e%e6%8f%90%e5%8d%87%e5%92 %8c%e5%8f%98/Front-end interview questions, JS preprocessing section Summary