Jak usunąć tekst z łańcucha w JavScript
var ret = "data-123".replace('data-','');
console.log(ret); //prints: 123
Mobile Star
var ret = "data-123".replace('data-','');
console.log(ret); //prints: 123
$.get('txt/messages.txt', function(txt) {
var lines = txt.responseText.split("\n");
var randLineNum = Math.floor(Math.random() * lines.length);
return lines[randLineNum]; // random line from the text file
});