check if something is a string javascript code example
Example 1: javascript is variable a string
if (typeof myVar === 'string'){
}
Example 2: js check if variable is string
if (typeof myVar === 'integer'){
}
if (typeof myVar === 'boolean'){
}
Example 3: if variable is string javascript
var booleanValue = true;
var numericalValue = 354;
var stringValue = "This is a String";
var stringObject = new String( "This is a String Object" );
alert(typeof booleanValue)
alert(typeof numericalValue)
alert(typeof stringValue)
alert(typeof stringObject)
Example 4: if is a string javascript
function isString(x) {
return Object.prototype.toString.call(x) === "[object String]"
}
Example 5: check if value is a string javascript
let eventValue = event.target.value;
if (/^\d+$/.test(eventValue)) {
eventValue = parseInt(eventValue, 10);
}