Difference output for "" and " " in javascript [duplicate]

Question

I have tried 2 conditions in JavaScript and output:

if(""){console.log("Called")} //No Output

if("_"){console.log("Called")} //Output: Called

What could be the possible reason for this?

Colin Ricardo · Accepted Answer · 2018-04-25 10:36:13Z

2

The empty string is considered as a 'falsy' value, and so it's equivalent to doing:

if(false){console.log("Called")}

answered Apr 25, 2018 at 10:36

Colin Ricardo

17.3k13 gold badges56 silver badges84 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Tuğca Eker · Accepted Answer · 2018-04-25 10:37:39Z

0

The empty string is equal to False if you cast it to Boolean (Type Conversion).

console.log(Boolean("")) //output: false
console.log(Boolean("somestring")) //output: true

answered Apr 25, 2018 at 10:37

Tuğca Eker

1,49313 silver badges20 bronze badges