javascript how to know type of variable
var foo = "Hello";
console.log(typeof foo); // string
javascript how to know type of variable
var foo = "Hello";
console.log(typeof foo); // string
get type of var js
function doSomething(x) {
if(typeof(x) === 'string') {
alert('x is a string')
} else if(typeof(x) === 'number') {
alert('x is a number')
}
}
javascript find type of variable
> typeof "foo"
"string"
> typeof true
"boolean"
> typeof 42
"number"
if(typeof bar === 'number') {
//whatever
}
javascript check type of variable var
// You can use the built-in method 'typeof' in order to check the variable datatype
//examples:
typeof "hello" // "string"
//or
var a = 1;
typeof(a);
//the output will be > 'number'
check data type in js
typeof("iAmAString");//This should return 'string'
//NO camelCase, as it is a JS Keyword
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