falsy value javascript code example

Example 1: javascript falsy values

the number 0
the BigInt 0n
the keyword null
the keyword undefined
the boolean false
the number NaN
the empty string "" (equivalent to '' or ``)

Example 2: javascript falsy

// Falsy values:
0
''
undefined
null
NaN

Example 3: js falsy values

let a = false
    let b = 0
    let c = -0
    let d = 0n
    let e = ''
    let f = null
    let g = undefined
    let h = NaN

Example 4: javascript falsy values

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)