Your Search Results


    In JavaScript, a truthy value is a value that translates to true when evaluated in a Boolean context. All values are truthy unless they are defined as falsy (i.e., except for false, 0, "", null, undefined, and NaN).

    JavaScript uses type coercion in Boolean contexts.

    Examples of truthy values in JavaScript (which will translate to true and thus execute the if block):

    if (true)
    if ({})
    if ([])
    if (42)
    if ("foo")
    if (new Date())

    See also

    Document Tags and Contributors

    Contributors to this page: fscholz, klez, Andrew_Pfeiffer
    Last updated by: Andrew_Pfeiffer,