Answers for "js falsy values"

14

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 ``)
Posted by: Guest on March-13-2020
4

javascript falsy

// Falsy values:
0
''
undefined
null
NaN
Posted by: Guest on December-08-2020
35

falsy values javascript

// JS Essentials: Falsy Values

false
undefined
null
NaN
0 or +0 or -0
"" or '' or `` (empty string)

// Everything else is truthy
Posted by: Guest on June-16-2021
2

falsy values javascript

false		//The keyword false.
0			//The Number zero (so, also 0.0, etc., and 0x0).
-0			//The Number negative zero (so, also -0.0, etc., and -0x0).
0n, -0n		//The BigInt zero and negative zero (so, also 0x0n/-0x0n).
"", '', ``	//Empty string value.
null		//the absence of any value.
undefined	//the primitive value.
NaN			//not a number.

document.all	
//Objects are falsy if and only if they have the [[IsHTMLDDA]] internal slot.
//That slot only exists in document.all and cannot be set using JavaScript.
Posted by: Guest on February-17-2021
2

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)
Posted by: Guest on January-30-2021
1

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
Posted by: Guest on January-16-2021

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