javascript - 字符串到 json 转换器 laravel 返回数据 json_encode

Question

"[{"question":false,"choices":["Database","Email","Command line"],"correctAnswer":1},{"question":false,"choices":["Horizon","Sunset","Nightfall"],"correctAnswer":1}]"

转换成这个

[{"question":false,"choices":["Database","Email","Command line"],"correctAnswer":1},{"question":false,"choices":["Horizon","Sunset","Nightfall"],"correctAnswer":1}]

Answer 1

而不是(无效字符串)

"[{"question":false,"choices":["Database","Email","Command line"],"correctAnswer":1},{"question":false,"choices":["Horizon","Sunset","Nightfall"],"correctAnswer":1}]"

使用这个

'[{"question":false,"choices":["Database","Email","Command line"],"correctAnswer":1},{"question":false,"choices":["Horizon","Sunset","Nightfall"],"correctAnswer":1}]'

例如:

var str = '[{"question":false,"choices":["Database","Email","Command line"],"correctAnswer":1},{"question":false,"choices":["Horizon","Sunset","Nightfall"],"correctAnswer":1}]'
console.log(JSON.parse(str))

原因:如果字符串内有双引号，则不能使用双引号将该字符串括起来。由于 JSON 字符串内总是有双引号，因此您可以使用单引号('')或模板字符串(``)将其括起来。