[#nlohmann-basic_json-0c-accept-05]
= xref:nlohmann.adoc[nlohmann]::xref:nlohmann/basic_json-0c.adoc[basic&lowbar;json]::accept
:relfileprefix: ../../
:mrdocs:

check if the input is valid JSON

== Synopsis

Declared in `&lt;nlohmann&sol;json&period;hpp&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template&lt;typename InputType&gt;
static
bool
accept(
    InputType&& i,
    bool const ignore&lowbar;comments = false,
    bool const ignore&lowbar;trailing&lowbar;commas = false);
----

== Return Value

whether the input is valid JSON

== Parameters

[cols="1,4"]
|===
| Name| Description
| *i*
| input to check
| *ignore&lowbar;comments*
| whether comments should be ignored and treated like whitespace (`true`) or yield a parse error (`false`)
| *ignore&lowbar;trailing&lowbar;commas*
| whether trailing commas in arrays and objects should be ignored (`true`) or yield a parse error (`false`)
|===


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