Integer Validation
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var var1 = ["2", "a", "2017/07/11", "", undefined, null];
for(var a = 0; a < var1.length; a++) {
var toInt = parseInt(var1[a]);
console.log(toInt);
}
console.log("\n");
for(var a = 0; a < var1.length; a++) {
console.log(isInteger(var1[a]));
}
function isInteger(i) {
return i + " is valid integer? => " + ! isNaN(parseInt(i));
}
JavaScript
INFO