Is it possible to create a named "fat-arrow" lambda in typescript?

Is it possible to create a named "fat-arrow" lambda in typescript?

By : Afzaal Ahmad Chughta
Date : November 17 2020, 04:28 AM
should help you out Doesn't look like you can do that, as the spec doesn't cover it, only at the end under "deferred" it states "Optional leading Identifier for named arrow function expressions."
code :

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MySql: "SHOW CREATE TABLE" doesn't work for tables named "x-..."?

MySql: "SHOW CREATE TABLE" doesn't work for tables named "x-..."?

By : Farhatunnisa Begum
Date : March 29 2020, 07:55 AM
it should still fix some issue SHOW CREATE TABLE works even if there are no rows.
Could you please reproduce this with a command line client or phpMyAdmin?
code :
SHOW CREATE TABLE `x-addresses`
Qt not letting me create a menu item named after my app with the strings "About", "Preferences", or

Qt not letting me create a menu item named after my app with the strings "About", "Preferences", or

By : Michael L
Date : March 29 2020, 07:55 AM
I wish this helpful for you Below is an example of getting the About menu item working correctly on Mac, in C++. The key is to setMenuRole to the correct role. There are roles for Quit, About, Preferences, and About Qt. The menu item with application's name in bold is provided by the OS, you don't need to do anything special to get that. Qt will automatically move items with correct roles where they belong. You don't need to do anything to get the Quit menu item, it's added automatically if you don't provide one.
If you're making menus in Qt Designer, you simply set the menuRole property of those menu QActions. That is all that's needed for the menus to go to correct places. Do not add a menu with your application's name. Simply create usual Windows-style menus (File, Edit, Help), and the items will be rearranged appropriately to their roles.
code :
int main(int argc, char *argv[])
    QApplication a(argc, argv);


    MainWidget w; // MainWidget is your widget class

    QMessageBox * aboutBox = new QMessageBox(&w);
    QImage img(":/images/youricon.png");
        img.scaled(128, 128, Qt::KeepAspectRatio, Qt::SmoothTransformation)));
    QString txt;
    txt = txt.fromUtf8(
            "fooapp %1\nCopyright \xC2\xA9 2012 Ed Hedges\n"
            "Licensed under the terms of ....");
    txt = txt.arg(a.applicationVersion());

    QMenuBar menu;
    QMenu * submenu = menu.addMenu("Help");
    QAction * about = submenu->addAction("About", aboutBox, SLOT(exec()));


    return a.exec();
What's the meaning of "void = () => {}" after Fat arrow function in TypeScript?

What's the meaning of "void = () => {}" after Fat arrow function in TypeScript?

By : lwvv
Date : March 29 2020, 07:55 AM
wish helps you I saw this block of code in our code base and I have a bit of a problem to understand void = (page). According to https://stackoverflow.com/a/34274584/513413, the return type is coming after => which is void in my case. So what does = (page) => {} do? What is its equivalent function if I don't write it with fat arrow function? , You are looking at the code incorrectly. The general structure is
code :
private Name: Type = Value
React Webpack "unexpected token" named arrow function

React Webpack "unexpected token" named arrow function

By : skreebydba
Date : March 29 2020, 07:55 AM
Hope that helps You're trying to use class properties, which are currently stage 3 as part of the Class fields proposal. To be able to use them today, you have to install babel-plugin-transform-class-properties.
code :
npm install --save-dev babel-plugin-transform-class-properties
  "presets": ["env", "react"],
  "plugins": ["transform-class-properties"]
Typescript, problem with "this" inside arrow functions and rxjs

Typescript, problem with "this" inside arrow functions and rxjs

By : Chev.Philip Andrew R
Date : September 29 2020, 09:00 AM
I wish this helpful for you You haven't shown us what the log statements reveal, but if they show something different, the only reason that will happen is that something is assigning to this.rows between the time you log it prior to subscribing and the time the subscription happens, like this example using setTimeout:
code :
const foo = {
    example() {
        this.rows = [];
        console.log(1, this.rows);
        setTimeout(() => {
            console.log(2, this.rows);
        }, 100);
foo.rows = {};
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