truthy values in js code example
Example 1: javascript truthy
// Truthy values:
// All values are truthy, BUT (excluding) the following:
0
''
undefined
null
NaN
Example 2: truthy and falsy values in javascript
if (true)
if ({})
if ([])
if (42)
if ("0")
if ("false")
if (new Date())
if (-42)
if (12n)
if (3.14)
if (-3.14)
if (Infinity)
if (-Infinity)
Example 3: JS truthy value of void
//////////////////////////////////////////////
// Truthy value of void is false
//////////////////////////////////////////////
function coolFunction() {
// do stuff
}
let truthyValue = (coolFunction() == true) // false