Press n or j to go to the next uncovered block, b, p or k for the previous block.
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* @license Apache-2.0
*
* Copyright (c) 2026 The Stdlib Authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
'use strict';
// MODULES //
var PINF = require( '@stdlib/constants/float16/pinf' );
var NINF = require( '@stdlib/constants/float16/ninf' );
var float64ToFloat16 = require( '@stdlib/number/float64/base/to-float16' );
var format = require( '@stdlib/string/format' );
// MAIN //
/**
* Returns a JSON representation of a number.
*
* @param {number} x - input value
* @throws {TypeError} must provide a number
* @returns {Object} JSON representation
*
* @example
* var json = number2json( NaN );
* // returns { 'type': 'float16', 'value': 'NaN' }
*/
function number2json( x ) {
if ( typeof x !== 'number' ) {
throw new TypeError( format( 'invalid argument. Must provide a number. Value: `%s`.', x ) );
}
if ( x !== x ) {
return {
'type': 'float16',
'value': 'NaN'
};
}
if ( x === PINF ) {
return {
'type': 'float16',
'value': '+Infinity'
};
}
if ( x === NINF ) {
return {
'type': 'float16',
'value': '-Infinity'
};
}
return float64ToFloat16( x );
}
// EXPORTS //
module.exports = number2json;
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