How does a script determine if the last modified date of a file is today?

[dublove]

For example, I want to determine the last modified date of my.json.
If it is not today, I perform operation A, if it is, I skip operation A. Execute

Thank you very much.

[m1b]

Here's one way:

(function () {

    var file = File.openDialog();

    if (!file)
        return;

    var modified = file.modified,
        today = new Date();

    if (
        modified.getFullYear() === today.getFullYear()
        && modified.getMonth() === today.getMonth()
        && modified.getDate() === today.getDate()
    )
        alert('The file "' + decodeURI(file.name) + '" was modified today.');

    else
        alert('The file "' + decodeURI(file.name) + '" was modified before today.');

})();

[dublove]

Hi m1b.

Thank you.

I don't open the file, I still want to check if the last modified date of my.json is today.

The myJSONpath below doesn't seem right.

myJSONpath=decodeURI(myJSONpath );

Get this:

function getJson() {
    myJSONObject = evalJSON(File($.fileName).parent.parent + '/PubLib/my.json');
    if (!myJSONObject)
        alert('Failed to load JSON.');
    myJSONpath = (File($.fileName).parent.parent + '/PubLib/my.json');
    myJSONpath=decodeURI(myJSONpath );

}

[dublove]

I've often tried to mess with it, but for some reason it suggests that there's an error in line 49

//@include '../PubLib/pubLib.jsx';
//@include '../PubLib/json.jsx';
function getJson() {
    myJSONObject = evalJSON(File($.fileName).parent.parent + '/PubLib/my.json');
    if (!myJSONObject)
        alert('Failed to load JSON.');
    var str = decodeURI((File($.fileName).parent.parent + '/PubLib/my.json'));
    //alert(myJSONObject);
    path1 = str.substring(1, 2);
    //alert(path1);
    path2 = str.substring(2, str.length - 0);
    myJSONpath = path1 + ':' + path2;
    //alert(myJSONpath);
}

function readFile(path) {
    var file = File(path);
    if (!file.exists)
        return;
    file.open('r');
    var content = file.read();
    file.close();
    return content;
};

function evalJSON(path) {
    json = readFile(path);
    if (!json)
        return;
    return JSON.eval(json);
};


getJson();
lastMoDate();
function lastMoDate() {

    var file = myJSONpath;

    //alert(myJSONpath);

    if (!file)
        return;

    var modified = file.modified,
        today = new Date();
    alert(file);

    if (
        modified.getFullYear() === today.getFullYear()
        && modified.getMonth() === today.getMonth()
        && modified.getDate() === today.getDate()
    ) {
        alert('The file "' + decodeURI(file.name) + '" was modified today.');
    }
    else {
        alert('The file "' + decodeURI(file.name) + '" was modified before today.');
    }
}

[dublove]

I modified the code above:
myJSONpath = path1 + ':' + path2;
It should not contain file:/