once the default value of the parameter is set, the parameter forms a separate context when the function is declared to initialize. When initialization is complete, the scope disappears. This syntax behavior is not an extension of the function when th...
Hello everyone, I have a requirement now. Now, for example, I have a class. There are no specified functions in the class. The effect I need to do is object.fun ( kwargs) or objcet.func_path.func ( kwargs) . object is my instantiated object, and then ...
I am a rookie. I have a doubt about the following code. The code is as follows: function showPrimes(n) { nextPrime: for (let i = 2; i < n; iPP) { for (let j = 2; j < i; jPP) { if (i % j == 0) continue nextPrime...
Today, we look at the problems encountered in the authoritative Guide to javascript, which describes that there is a subtle difference between functions and "executable object (callable object) " in Javascript. All functions are executable, but an obje...
assume that the original data id type time 1 1 201X-XX-XX XX:XX 21 201X-XX-XX XX:XX 3 1 201X-XX-XX XX:XX 4 2 201X-XX-XX XX:XX 52 201X-XX-XX XX:XX query statement Select t.typepart. TimeMAX (t.id), t.* FROM t WHERE t.time between 2018-08-01 ...
question: the ajax request initiated within a function will get a code, so as a b function, how to get the return value (code) of a function? The b function is triggered by other events. ...
Code written by colleagues function tableVue(tableData){ var tableData = tableData; * vue * var tableV = new Vue({ el: -sharptable , data: { item:[] }, mounted: function () { ...
ask for an explanation because I learned es6, directly at the beginning. Es6, has always been in the class way of ES6, and function has not been used much. ...
I want to put multiple independent if statements in a function; such as: function(){ if(){ return true if }else{ return false if }; if(){ }else{ }; if(){ }else{ }; }; if the ...
Let me ask you a question. has made a new wodpress theme by myself. What code can I add to functions to load the previously installed wordpress plug-in into my new theme? ...
hypothetical function number($id){ .... sizeof($array); } <?= number(id);?> when number is complete, there will be a value how can I write to my function so that it will be printed ...
export default class Base extends Component<Props> { constructor(props) { super(props); console.log("Base this",this) this showToast renderModal } * *Toast * * showToast=(msg)=>{ cons...
first of all, let s talk about my problem. I m currently building a project using webpack + typescript to define a class: NetData. requirements are as follows: there is a frequently used function: (netdata: NetData) = > void . I wrote an alias u...
suppose I generate a value on some if faces $name if(xxx==xxx){ if(xxx==xxx){ if(xxx==xxx){ $name = xxx; } } } I want to add $name to the outside of if to use so what should I do?! ...
I write curl on a function like this: function httpRequest ($api, $data_string) { $ch = curl_init($api); curl_setopt($ch, CURLOPT_POST, 1); curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST"); curl_setopt($ch, CURLOPT_POSTFIELDS, $data_st...
there is a strange question suppose I declare $self = $_SERVER[ PHP_SELF ]; then I wrote a function below $self = $_SERVER[ PHP_SELF ]; function report(){ echo $self; } and then I ll do another one report(); he will say Undefined vari...
here I abstract the actual business I try to create a class that has the following methods: import types class A: def __init__(self,num): self.num = num self.add_prop(10) -sharp 10 def add_prop(self, n): f...
1. Invalid code for empty list detection 2. Code: admin_list= [ admin , zeyu , xx , yy , zz ] admin_list2 = admin_list print (admin_list2) del admin_list2 [:] print (admin_list2) < H1 > the following code does not report an error, but d...
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I use the django project under svn to run in a virtual environment, but pycharm is still dependent on the system, which makes it impossible to use modules such as django-redis,numpy as shown in figure setting:: other self-created projects do ...
I want to use facets to manage all methods with the first parameter HttpServletRequest request under the controller package. Here is my code: @Pointcut("execution(* com.belfry.bequank.controller.*.*(..))&&args(request,..)") public voi...
what s the difference between official account and Mini Program see what is the mainstream of development using PHP and JAVA is there a recommendation for a rapid development framework? Is there a better video recommendation? ...