質問をすることでしか得られない、回答やアドバイスがある。

15分調べてもわからないことは、質問しよう!

新規登録して質問してみよう
ただいま回答率
85.50%
JSON

JSON(JavaScript Object Notation)は軽量なデータ記述言語の1つである。構文はJavaScriptをベースとしていますが、JavaScriptに限定されたものではなく、様々なソフトウェアやプログラミング言語間におけるデータの受け渡しが行えるように設計されています。

Java

Javaは、1995年にサン・マイクロシステムズが開発したプログラミング言語です。表記法はC言語に似ていますが、既存のプログラミング言語の短所を踏まえていちから設計されており、最初からオブジェクト指向性を備えてデザインされています。セキュリティ面が強力であることや、ネットワーク環境での利用に向いていることが特徴です。Javaで作られたソフトウェアは基本的にいかなるプラットフォームでも作動します。

JavaScript

JavaScriptは、プログラミング言語のひとつです。ネットスケープコミュニケーションズで開発されました。 開発当初はLiveScriptと呼ばれていましたが、業務提携していたサン・マイクロシステムズが開発したJavaが脚光を浴びていたことから、JavaScriptと改名されました。 動きのあるWebページを作ることを目的に開発されたもので、主要なWebブラウザのほとんどに搭載されています。

Q&A

解決済

1回答

2220閲覧

JSON.parse時のUnexpected token o in JSON at position 1の対処に関して

gnx_vw903

総合スコア74

JSON

JSON(JavaScript Object Notation)は軽量なデータ記述言語の1つである。構文はJavaScriptをベースとしていますが、JavaScriptに限定されたものではなく、様々なソフトウェアやプログラミング言語間におけるデータの受け渡しが行えるように設計されています。

Java

Javaは、1995年にサン・マイクロシステムズが開発したプログラミング言語です。表記法はC言語に似ていますが、既存のプログラミング言語の短所を踏まえていちから設計されており、最初からオブジェクト指向性を備えてデザインされています。セキュリティ面が強力であることや、ネットワーク環境での利用に向いていることが特徴です。Javaで作られたソフトウェアは基本的にいかなるプラットフォームでも作動します。

JavaScript

JavaScriptは、プログラミング言語のひとつです。ネットスケープコミュニケーションズで開発されました。 開発当初はLiveScriptと呼ばれていましたが、業務提携していたサン・マイクロシステムズが開発したJavaが脚光を浴びていたことから、JavaScriptと改名されました。 動きのあるWebページを作ることを目的に開発されたもので、主要なWebブラウザのほとんどに搭載されています。

0グッド

2クリップ

投稿2019/03/27 11:41

前提・実現したいこと

"constant":false,"inputs":[],"name":"unpause","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"paused","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"renounceOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"destroy","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"pause","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"owner","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_recipient","type":"address"}],"name":"destroyAndSend","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_creator","type":"address"},{"indexed":false,"name":"_room","type":"address"},{"indexed":false,"name":"_depositedValue","type":"uint256"}],"name":"RoomCreated","type":"event"},{"anonymous":false,"inputs":[],"name":"Pause","type":"event"},{"anonymous":false,"inputs":[],"name":"Unpause","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"previousOwner","type":"address"}],"name":"OwnershipRenounced","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"previousOwner","type":"address"},{"indexed":true,"name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"constant":false,"inputs":[],"name":"createRoom","outputs":[],"payable":true,"stateMutability":"payable","type":"function"}

これをJSON.parseにしたいと考えています

発生している問題・エラーメッセージ

truffle(development)> var abi_json = JSON.parse({"constant":false,"inputs":[],"name":"unpause","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"paused","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"renounceOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"destroy","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"pause","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"owner","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_recipient","type":"address"}],"name":"destroyAndSend","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_creator","type":"address"},{"indexed":false,"name":"_room","type":"address"},{"indexed":false,"name":"_depositedValue","type":"uint256"}],"name":"RoomCreated","type":"event"},{"anonymous":false,"inputs":[],"name":"Pause","type":"event"},{"anonymous":false,"inputs":[],"name":"Unpause","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"previousOwner","type":"address"}],"name":"OwnershipRenounced","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"previousOwner","type":"address"},{"indexed":true,"name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"constant":false,"inputs":[],"name":"createRoom","outputs":[],"payable":true,"stateMutability":"payable","type":"function"}); Thrown: SyntaxError: Unexpected token o in JSON at position 1

SyntaxError: Unexpected token o in JSON at position 1というエラーが出たので、
一度JSON.stringifyにすると解決すると他のサイトにあったのでやってみると
以下のような結果になりました

truffle(development)> var abi_json = JSON.stringify(‘{“constant":false,"inputs":[],"name":"unpause","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"paused","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"renounceOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"destroy","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"pause","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"owner","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_recipient","type":"address"}],"name":"destroyAndSend","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_creator","type":"address"},{"indexed":false,"name":"_room","type":"address"},{"indexed":false,"name":"_depositedValue","type":"uint256"}],"name":"RoomCreated","type":"event"},{"anonymous":false,"inputs":[],"name":"Pause","type":"event"},{"anonymous":false,"inputs":[],"name":"Unpause","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"previousOwner","type":"address"}],"name":"OwnershipRenounced","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"previousOwner","type":"address"},{"indexed":true,"name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"constant":false,"inputs":[],"name":"createRoom","outputs":[],"payable":true,"stateMutability":"payable","type":"function”}'); Thrown: evalmachine.<anonymous>:1 var abi_json = JSON.stringify(‘{“constant":false,"inputs":[],"name":"unpause","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"paused","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"renounceOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"destroy","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"pause","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"owner","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type": SyntaxError: Invalid or unexpected token

何かJSON.parseにするためにアドバイスいただけますでしょうか?
よろしくお願いいたします

気になる質問をクリップする

クリップした質問は、後からいつでもMYページで確認できます。

またクリップした質問に回答があった際、通知やメールを受け取ることができます。

バッドをするには、ログインかつ

こちらの条件を満たす必要があります。

guest

回答1

0

ベストアンサー

なにか変では?

javascript

1var data = [ 2 {"constant":false,"inputs":[],"name":"unpause","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"}, 3 {"constant":true,"inputs":[],"name":"paused","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"}, 4 {"constant":false,"inputs":[],"name":"renounceOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"}, 5 {"constant":false,"inputs":[],"name":"destroy","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"}, 6 {"constant":false,"inputs":[],"name":"pause","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"}, 7 {"constant":true,"inputs":[],"name":"owner","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"}, 8 {"constant":false,"inputs":[{"name":"_newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"}, 9 {"constant":false,"inputs":[{"name":"_recipient","type":"address"}],"name":"destroyAndSend","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"anonymous":false,"inputs":[{"indexed":true,"name":"_creator","type":"address"},{"indexed":false,"name":"_room","type":"address"},{"indexed":false,"name":"_depositedValue","type":"uint256"}],"name":"RoomCreated","type":"event"},{"anonymous":false,"inputs":[],"name":"Pause","type":"event"},{"anonymous":false,"inputs":[],"name":"Unpause","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"previousOwner","type":"address"}],"name":"OwnershipRenounced","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"previousOwner","type":"address"},{"indexed":true,"name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"}, 10 {"constant":false,"inputs":[],"name":"createRoom","outputs":[],"payable":true,"stateMutability":"payable","type":"function"} 11 ]; 12var abi_json = JSON.stringify(data); 13console.log(abi_json);

投稿2019/03/27 11:52

yambejp

総合スコア114583

バッドをするには、ログインかつ

こちらの条件を満たす必要があります。

gnx_vw903

2019/03/27 11:59

[]がなかったのが原因ですね、 ありがとうございます!
guest

あなたの回答

tips

太字

斜体

打ち消し線

見出し

引用テキストの挿入

コードの挿入

リンクの挿入

リストの挿入

番号リストの挿入

表の挿入

水平線の挿入

プレビュー

15分調べてもわからないことは
teratailで質問しよう!

ただいまの回答率
85.50%

質問をまとめることで
思考を整理して素早く解決

テンプレート機能で
簡単に質問をまとめる

質問する

関連した質問