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...
as mentioned above, we need to use column to achieve the effect of column-by-column reading. A problem has been found that writing like this (omitting CSS), will cause DIV2 to follow DIV1. We hope that, as shown in the figure, after the end of DIV1, a ...
AH00489: Apache 2.4.33 (Unix) OpenSSL 1.0.2l configured-- resuming normal operations AH00094: Command line: www server apache bin httpd AH00493: SIGUSR1 received. Doing graceful restart AH01873: Init: SessionCache is not configured [hint: S...
image: https: hub.docker.com _ mysql the container cannot be started with the following command: docker run --name db -e MYSQL_ALLOW_EMPTY_PASSWORD=true -d -p 3306:3306 -v Users user Desktop db mysql data: var lib mysql -v Users user Desktop db m...
wrote a simple container using phpx and wanted to run it in php to do some testing. I have successfully written a dispatch_function to register in swoole before this, and it works well. After , I wrote another CPP class, created a new PHP class, and reg...
var t = $( -sharplxu_dr_table ).dataTable({ data: returnData, language: trans(), sDom: "top"i , "scrollX": true, paging:true, pageLength: 10, autoWidth: true, d...