Skip to content

Instantly share code, notes, and snippets.

@elmissouri16

elmissouri16/read-write-file.js

Created January 22, 2018 16:38
Show Gist options

  • Select an option

    Learn more about clone URLs
  • Save elmissouri16/773e412f4612c60a533792f86a2b14a8 to your computer and use it in GitHub Desktop.

Select an option

Learn more about clone URLs
Save elmissouri16/773e412f4612c60a533792f86a2b14a8 to your computer and use it in GitHub Desktop.
Download ZIP

Revisions

  1. Igor Grinchesku created this gist Apr 2, 2014.
    81 changes: 81 additions & 0 deletions read-write-file.js
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,81 @@
    /// write to file
    var txtFile = "c:/test.txt";
    var file = new File(txtFile);
    var str = "My string of text";

    file.open("w"); // open file with write access
    file.writeln("First line of text");
    file.writeln("Second line of text " + str);
    file.write(str);
    file.close();

    /// read from file

    var txtFile = "c:/test.txt"
    var file = new File(txtFile);

    file.open("r"); // open file with read access
    var str = "";
    while (!file.eof) {
    // read each line of text
    str += file.readln() + "\n";
    }
    file.close();
    alert(str);

    ////////////////////////////////////////////////////
    /**
    * writeTextFile write data to file on hard drive
    * @param string filepath Path to file on hard drive
    * @param sring output Data to be written
    */
    function writeTextFile(filepath, output) {
    var txtFile = new File(filepath);
    txtFile.open("w"); //
    txtFile.writeln(output);
    txtFile.close();
    }

    ////////////////////////////////////////////////////
    /**
    * readTextFile read data from file
    * @param string filepath Path to file on hard drive
    * @return string String with file data
    */
    function readTextFile(filepath) {
    var str = "";
    var txtFile = new File(filepath);
    txtFile.open("r");
    while (!txtFile.eof) {
    // read each line of text
    str += txtFile.readln() + "\n";
    }
    return str;
    }

    ////////////////////////////////////////////////////

    // Great parse examples with result to process file
    // http://www.w3schools.com/jsref/jsref_parseint.asp
    // var a = parseInt("10"); // 10
    // var b = parseInt("10.00"); // 10
    // var c = parseInt("10.33"); // 10
    // var d = parseInt("34 45 66"); // 34
    // var e = parseInt(" 60 "); // 60
    // var f = parseInt("40 years"); // 40
    // var g = parseInt("He was 40"); // NaN
    //
    // var h = parseInt("10",10); // 10
    // var i = parseInt("010"); // 10
    // var j = parseInt("10",8); // 8
    // var k = parseInt("0x10"); // 16
    // var l = parseInt("10",16); // 16

    // http://www.w3schools.com/jsref/jsref_parsefloat.asp
    // var a = parseFloat("10"); // 10
    // var b = parseFloat("10.00"); // 10
    // var c = parseFloat("10.33"); // 10.33
    // var d = parseFloat("34 45 66"); // 34
    // var e = parseFloat(" 60 "); // 60
    // var f = parseFloat("40 years"); // 40
    // var g = parseFloat("He was 40"); // NaN