Parsing text file to objects in an array in javaScript

Question

I am new to javaScript, suppose I have a text file (test.txt) contains hundreds of lines of code and have the following format:

The first num in each line is source and second num is target. Right now I want to parse into the javaScript objects like this:

var links = [
{source: '4', target: '6'},
{source: '5', target: '7'},
{source: '4', target: '7'},
{source: '2', target: '6'}];

How can I do that?

Boris · Accepted Answer · 2017-01-22 18:02:00Z

2

I'm going to assume here that you already have the contents of your file in a string named filecontent (doing that is already a nontrivial thing, depending on where your javascript resides). Then here is a straight-forward implementation :

var lines = filecontent.split('\n');//puts the lines in an array
var links = [];
for(var i = 0; i < lines.length; ++i){
    var values = lines[i].split(' ');//transforms "4 6" into ["4", "6"]
    links[i] = {source : values[0], target : values[1]};
    //then into the format you wanted !
}

answered Jan 22, 2017 at 18:02

Boris

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