numberValue.js
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var util = require('../core').util;
/**
* An object recognizable as a numeric value that stores the underlying number
* as a string.
*
* Intended to be a deserialization target for the DynamoDB Document Client when
* the `wrapNumbers` flag is set. This allows for numeric values that lose
* precision when converted to JavaScript's `number` type.
*/
var DynamoDBNumberValue = util.inherit({
constructor: function NumberValue(value) {
this.wrapperName = 'NumberValue';
this.value = value.toString();
},
/**
* Render the underlying value as a number when converting to JSON.
*/
toJSON: function () {
return this.toNumber();
},
/**
* Convert the underlying value to a JavaScript number.
*/
toNumber: function () {
return Number(this.value);
},
/**
* Return a string representing the unaltered value provided to the
* constructor.
*/
toString: function () {
return this.value;
}
});
/**
* @api private
*/
module.exports = DynamoDBNumberValue;