readfileline

2.0.4 • Public • Published

ReadFileLine

Read file line by line for node

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Install

$ npm install readfileline -g

How to use

 
 
var fl = require('readfileline');
var fileContents = [];
fl(__dirname+'/data.txt',function(lineData,lineNum){
    fileContents.push(lineData);
    console.log(lineNum+':'+lineData+'\n');
},function(err,eventType,totalLineNum){
    if(eventType=='end'){
     //if file read all line to success, "close" event still will emit, so you need distinguish between they
     console.log('read line is done, total '+totalLineNum+' line(s)');
    }
    if(eventType=='close'){
        console.log('read line is closed, read to '+totalLineNum+' line(s)');
    }
    if(eventType=='error'){
     console.log('read file line has an error:'+err.message);
    }
});
 
//--------
 
var fileContents2=[];
fl(__dirname+'/data.txt',function(lineData,lineNum){
    var thisFL = this;
    if(lineNum>=5){
        this.close(); //And also has a function is "this.stop()", but it still emit "close" event so you still need listen "close" event, so mustn't listen "stop" event
        return;
    }
    fileContents2.push(lineData);
    console.log(lineNum+':'+lineData+'\n');
},function(err,eventType,totalLineNum){
    if(eventType=='end'){
     //if file read all line to success, "close" event still will emit, so you need distinguish between they
     console.log('read line is done, total '+totalLineNum+' line(s)');
    }
    if(eventType=='close'){
        console.log('read line is closed, read to '+totalLineNum+' line(s)');
    }
    if(eventType=='error'){
     console.log('read file line has an error:'+err.message);
    }
});
 

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Install

npm i readfileline

Weekly Downloads

2

Version

2.0.4

License

MIT

Last publish

Collaborators

  • zenboss