All Questions

1
answer

Why can not I print the result of a query in angle 6?

My code is as follows: getReport(id_reporte: string, destino: number, departamento: string, afiliacion: string, tipo_servicio: string, canal: string, fechai: string, fechaf: string, por: string): Observable <Afiliados[]> {...
asked on 06.08.2018 / 17:16
3
answers

How to solve this MySQL query

List the name of the clients who have traveled in all the cars. I have 4 tables, auto, driver, client and trip, the only one with foreing key is trip that acquires the driver, client and travel primary That's how I did it but it's bad...
asked on 15.07.2018 / 23:43
1
answer

Scroll JSON array and fill select dynamically

I am trying to fill <select> from the data stored in a JSON array. My code is as follows: applications = { "apps": [ { "app":"app_uno", "buzon":"buzon_uno" }, { "app":"app_dos", "buzon":"buzón_dos" } ] };...
asked on 07.07.2018 / 14:22
1
answer

How to nest independent 'select'?

I have the following table with information: What I need to show is this: I try with this code, but I duplicate the data: SELECT * FROM (SELECT Codigo AS LYC FROM Requerimi...
asked on 10.08.2018 / 00:05
2
answers

Reading data from the serial port hangs my GUI

I'm doing an access control application in Python. I have a window in PyQt5, which has a running clock and a connection to an Arduino, which is the one that will read a card through its corresponding NFC. The fact is that for the two tasks (c...
asked on 07.07.2018 / 21:56
1
answer

Arrow Functions in (IE) Internet Explorer 11

I have AngularJS (1.5.5) and doing testing, the arrow functions do not work in Internet Explorer 11, I have the following code: return availability.price && availability.options.filter(x => x.leadTime >= 0).length > 0; And...
asked on 27.07.2018 / 02:03
1
answer

favorite system without database

I want to make a bookmark button, like a heart or something ... the issue is that I did not want to use a database and I found a code that works and I like it but when it exits and re-enters it restarts and deletes the data: var likes =0...
asked on 20.05.2018 / 17:34
2
answers

Every word within a div

I am implementing a spellcheker (corrector of words), I have a container where each new written word is placed in a new div, instead of placing it as ordinary text. I am putting every word on a div, so that word suggestions are displayed, is...
asked on 25.06.2018 / 02:55
2
answers

Why does my variable of decimal type only keep integer values?

I have a problem with this code snippet: public decimal consumo_promedio(int serial_mic) { foreach (var item in objconnection.consumo_lco(serial_mic)) { a = a + item.consumo_lco; counter++;...
asked on 29.05.2018 / 23:34
1
answer

Error: java.io.StreamCorruptedException: invalid type code: AC

Can anyone give me a hand with that? The idea is to recover all the "Video" objects, which are saved in a file, but apparently I'm only recovering the first object and then I get this error: java.io.StreamCorruptedException: invalid type code...
asked on 28.07.2018 / 02:13