JSON for Modern C++ 2.1.1
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◆ erase() [1/4]

template<template< typename U, typename V, typename... Args > class ObjectType = std::map, template< typename U, typename... Args > class ArrayType = std::vector, class StringType = std::string, class BooleanType = bool, class NumberIntegerType = std::int64_t, class NumberUnsignedType = std::uint64_t, class NumberFloatType = double, template< typename U > class AllocatorType = std::allocator, template< typename T, typename SFINAE=void > class JSONSerializer = adl_serializer>
void nlohmann::basic_json< ObjectType, ArrayType, StringType, BooleanType, NumberIntegerType, NumberUnsignedType, NumberFloatType, AllocatorType, JSONSerializer >::erase ( const size_type  idx)
inline

Removes element from a JSON array at the index idx.

Parameters
[in]idxindex of the element to remove
Exceptions
std::domain_errorwhen called on a type other than JSON array; example: "cannot use erase() with null"
std::out_of_rangewhen idx >= size(); example: "array index 17 is out of range"
Complexity\n Linear in distance between idx and the end of the container.
Example\n The example shows the effect of erase(). \n @includelineno erase__size_type.cpp \n Output (play with this example @htmlinclude erase__size_type.link):\n @verbinclude erase__size_type.output \n The example code above can be translated with @verbatim g++ -std=c++11 -Isrc doc/examples/erase__size_type.cpp -o erase__size_type @endverbatim
See also
erase(IteratorType) – removes the element at a given position
erase(IteratorType, IteratorType) – removes the elements in the given range
erase(const typename object_t::key_type&) – removes the element from an object at the given key
Since
version 1.0.0

Definition at line 4531 of file json.hpp.