Javascript function to not read blank line breaks

Question

Javascript function to not read blank line breaks

Navigation

#1 by (3 votes)
#2 by (1 votes)

0

I'm trying to read a txt file with javascript and convert it to JSON, but the files at the end have a blank line break

Example of the TXT file

(0, "A": RED, 1)

(1, "B": GREEN, 4)

3.

This is my function

                function parseContent(content) {
    //Couper chaque ligne du fichier aprés saut de ligne
    var lines = content.split("\n");
    //Array à stocker les donnés
    var result = [];
    //Creation de l'automate
    var automateObject;
    var title;
    var currentline
    //Parcourir tout le fichier
    for (var i = 0; i < lines.length; i++) {
      //Pour creer l'onbjet automate
        if(i == 0){
          currentline = lines[i].split("\n");
          currentline = lines[i].replace(/[\(\)]/g, '');  
          currentline = currentline.replace(/,/g, '');   
          currentline = currentline.split(" ");
          automateObject = new Automate(parseInt(currentline[1]),parseInt(currentline[2]),parseInt(currentline[3]));
        } else {
            //variable pour stocker le titre et la couleur
            var tam;
            //variable pour couper chaque ligne du fichier
            currentline = lines[i].split("\n");
            if(currentline.length > 0){
              //Enlever les parenthese de la chaine de characters
              currentline = lines[i].replace(/[\(\)]/g, '');
              //Enlever les citations de la chaine
              currentline = currentline.replace(/['"]+/g, '');
              //Couper la chaine en 3 morceaux
              currentline = currentline.split(",",3);
              //Couper le deuxieme atribut pour obtenir le nom de lien et la couleur
              title = currentline[1].split(":");
              //Creation d'un object de type automate
              const etat = new Etat(parseInt(currentline[0]),title[0],title[1],parseInt(currentline[2]));
              //Ajouter l'object dans l'array
              result.push(etat);
            } 
        }
    } 
automateObject.Etats = result;        
      //Conversion de l'array en JSON
console.log(JSON.stringify(automateObject));
}

With the length point, I try to avoid reading the blank line break, but the line length does not have a size and it is 1

How could you say that you do not read the blank line breaks?

javascript

asked by Ernesto Emmanuel Yah Lopez 01.03.2018 в 09:29

source

2 answers

How to make a comment block in sublime text 3? error when converting FILE * to const char

score 3 · Answer 1

You can do this

currentline = lines[i].trim().split("\n");

Or, if you have a "for" above that you go through the lines, do the TRIM there and that way you take off the checks. That is, lines [i] sure comes from another split ("\ n"). Then put the TRIM there.

for (i = 0; i < contenido.trim().split('\n').length; i++)

In summary, it is better to exclude that empty line from the beginning and thus minimize errors.

Edited: put this up.

var lines = content.trim().split("\n");

score 1 · Answer 2

After trying some of your answers, I can not solve it in that way, so I decided to use a condition every time a line is read

if(lines[i].length > 1){
}

and with this I avoid doing the whole process of each line if the line is a blank line