js check string code example
Example 1: is string javascript
function isString(value) {
return typeof value === 'string' || value instanceof String;
}
isString(''); // true
isString(1); // false
isString({}); // false
isString([]); // false
isString(new String('teste')) // true
Example 2: if string javascript
if (typeof myVar === 'string') { /* code */ };
Example 3: js test if string
if (typeof string === 'string') { /* code */ };
Example 4: js check if variable is string
if (typeof myVar === 'integer'){
//I am indeed an integer
}
if (typeof myVar === 'boolean'){
//I am indeed a boolean
}