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Asney's questions

Martin Hope
Asney
Asked: 2020-01-04 06:44:29 +0800 CST
  • 0

I have a file .tar.gz, which I have to unzip in a path, but I need to check what is inside it to later unzip it. I have the following code:

const targz = require('targz');

targz.decompress({
    src: 'archivo.tar.gz',
    dest: 'ruta' //ruta donde se realiza la descompresión ...
}, function(err){
    if(err) {
        console.log(err);
    } else {
        console.log("Done!");
    }
});

As I could review what it contains before it is decompressed, for example that there is a text.txttar.gz file inside , and that I can read that file from inside and depending on what it says, I decompress or not. Thanks in advance

javascript
Martin Hope
Asney
Asked: 2020-12-22 11:13:29 +0800 CST
  • 3

I have the following block of code:

data.split('\n').map(l => {
    if (/^videoW/.exec(l)) {
      vidConf.videoW = l.split('=')[1]
    }
    if (/^videoH/.exec(l)) {
      vidConf.videoH = l.split('=')[1]
    }
    if (/^videoT/.exec(l)) {
      vidConf.videoT = l.split('=')[1]
    }
    if (/^videoL/.exec(l)) {
      vidConf.videoL = l.split('=')[1]
    }
    if (/^time=/.exec(l)) {
      vidConf.timeImg = l.split('=')[1]
    }
    if (/^auto=/.exec(l)) {
      vidConf.videoA = l.split('=')[1]
    }
    if (/^typeP=/.exec(l)) {
      vidConf.typeP = l.split('=')[1]
    }

  })

I cut the data array by line breaks ( \n), because I extract it from an external file and perform an mapenvelope to check the existence of some variables in it through regular expressions and in this way pass the data to the vidConf variable .

How could I refactor this code avoiding so many statements if, and achieving the same result?

javascript
Martin Hope
Asney
Asked: 2020-12-16 10:01:52 +0800 CST
  • 1

I have the following problem, I have three versions of the firefox installer for android , la 57.0.1-i386, 57.0.1-armand 57.0.1-ch64, I have a site where I detect that the browser is firefox and if it is less than these versions, I propose to update. How javascriptcan I know the technology of the mobile so that when I download the installer it is the technology used by that device?

PS: I don't have echo code, that's why I don't show you anything

javascript
Martin Hope
Asney
Asked: 2020-12-15 05:24:36 +0800 CST
  • 16

I have a variable that the server gives me with a value, I need to know if the number is even or odd , but without using %2:

$.ajax({ 
    url:'/numero',
    type:'POST',
    success:function(num){
       // ¿Qué hago con num para saber qué es?
       // num.numero me da el valor del numero ej;5,7,2...
    }

})
javascript
Martin Hope
Asney
Asked: 2020-10-14 12:23:08 +0800 CST
  • 1

I have an application that backendworks with nodeJS, in it I control the authentication process well, I have the problem in frontend, I use token to authenticate and frontendI save it in the LocalStoragebrowser, but I don't know how to enter it in the headerand then in the backend get it in a middleware.

Thanks in advance... Salu2s

nodejs