check if string contains integer javascript code example
Example 1: check if a string contains digits js
function hasNumber(myString) {
return /\d/.test(myString);
}
Example 2: js string have number js
var hasNumber = /\d/;
hasNumber.test("ABC33SDF");
hasNumber.test("ABCSDF");
Example 3: js check if string is int
function isNumeric(str) {
if (typeof str != "string")
return false
return !isNaN(str) &&
!isNaN(parseFloat(str))
}
Example 4: js check if string or int
var myString = "abc123";
var otherString = "123";
Number.isInteger(myString);
Number.isInteger(otherString);