now there are three roles: general factory, middleman, and customer. the framework I use is the laravel framework I have built three middleware: BackendRole.php function: only allow factory access ShopRole.php function: only allow middlemen ...
The A colleague pulled the code locally for development at 7: 00. The B colleague modifies the model layer (the underlying code) at 8: 00 and submits it to the server. A colleague finally finished writing the upper layer code at 9 o clock and submitte...
declare class class: in es6 class Template{ constructor(){ ** } method(){ ** } } or class Template{ method(){ ** } } question: under what circumstances can class in 1.ES6 not declare constructo...
as the title, I have seen someone in java say this. I wonder if php is the same? ...
function animal () { this.eat = function (){ console.log( i will eat ); } } Why can t it be executed with the method animal.eat (), but with an instance of var. Do not understand the principle animal.eat (); eat is not a function ...
< H2 > problem description < H2 > there is an A parent class use A; class B extend A { public function __construct() { } public function index() { echo "Method: index"; } } $a = new A; $a->index(); ca...
as in the following code, I created a middleware and launched a browser in the _ _ init__ method. I want to update the agent of driver = webdriver.PhantomJS (service_args=service_args) through the process_request method, and how to change the code. cla...
for example: ImageView imageview1; ImageView imageview2; ImageView imageview3; imageview1=(ImageView)findViewById(R.id.main1); imageview2=(ImageView)findViewById(R.id.main2); imageview3=(ImageView)findViewById(R.id.main3); imageView1.setVisibility(Vi...
help to see if the following js oop code interprets private variables, instance variables, static variables, and public variables correctly. by the way, what is variable a? What s the name of a variable in oop? var Oop = (function () { var a = A...
scenario : there is an object, and the method foo () is added through the prototype keyword. var Graph = new Graph(); foo Graph.prototype.foo = function(){ ... } fun Graph.prototype.fun = function(){ ... } now the logic in the foo ...
you need to convert an object to a string, one of which is already in JSON format. After the conversion, the double quotation marks of the attribute are escaped ( "). There is no way to change the value of the attribute and convert the other attributes t...
No problem on this machine and on my own server your own server github pages ...
in the app of native, click a link to download app. After the app is downloaded, you can automatically adjust and install it directly, but not on the H5 page, because you do not have the permission to manipulate the file. question: there is a link ...
I don t understand why there is something wrong with mongodb s connection after writing a login interface. As long as a login request is sent, after the request ends, its service will exit directly. when starting the service, connect to the database...
def permutations(a): result = [] helper(a, result, 0, len(a)) return result def helper(a, result, lo, hi): if lo == hi: print(a) result.append(a) else: cursor = lo for i in range(lo, hi): ...