如何在Javascript中将字符串转换为数组[重复]答案

【问题标题】：How to convert a string into array in Javascript [duplicate]如何在Javascript中将字符串转换为数组[重复]
【发布时间】：2020-09-12 09:46:12
【问题描述】：

如何转换“[{"id":6,"name":"r6","preparation_time":"123","servings":4,"background_media_file":"recipe_background_image","font_color":"#000000","created_at":"2020-09-11 09:27:02","updated_at":"2020-09-11 09:27:02"},{"id":5,"name":"r5","preparation_time":"21","servings":4,"background_media_file":"recipe_background_image","font_color":"#000000","created_at":"2020-09-11 09:26:28","updated_at":"2020-09-11 09:26:28"}]"

致[{"id":6,"name":"r6","preparation_time":"123","servings":4,"background_media_file":"recipe_background_image","font_color":"#000000","created_at":"2020-09-11 09:27:02","updated_at":"2020-09-11 09:27:02"},{"id":5,"name":"r5","preparation_time":"21","servings":4,"background_media_file":"recipe_background_image","font_color":"#000000","created_at":"2020-09-11 09:26:28","updated_at":"2020-09-11 09:26:28"}]

【问题讨论】：

有什么区别？你试过什么？
我正在尝试迭代第一个但出现错误，recipes.forEach 不是函数，因为它是字符串，当打印 typeof (firstArray)
这是怎么回事？你如何得到这样的字符串..
试图从 laravel Blade.php 访问这个，无法通过 api
你不想要JSON.parse吗？

标签： javascript arrays json

【解决方案1】：

使用JSON.parse()

console.log(JSON.parse('[{"id":6,"name":"r6","preparation_time":"123","servings":4,"background_media_file":"recipe_background_image","font_color":"#000000","created_at":"2020-09-11 09:27:02","updated_at":"2020-09-11 09:27:02"},{"id":5,"name":"r5","preparation_time":"21","servings":4,"background_media_file":"recipe_background_image","font_color":"#000000","created_at":"2020-09-11 09:26:28","updated_at":"2020-09-11 09:26:28"}]'))

【讨论】：

@ShubhamChaudhari ：如果它对你有帮助，你可以接受它作为答案

【解决方案2】：

给定的字符串是 json 格式。通过使用JSON.parse()。

$arr = JSON.parse('[{"id":6,"name":"r6","preparation_time":"123","servings":4,"background_media_file":"recipe_background_image","font_color":"#000000","created_at":"2020-09-11 09:27:02","updated_at":"2020-09-11 09:27:02"},{"id":5,"name":"r5","preparation_time":"21","servings":4,"background_media_file":"recipe_background_image","font_color":"#000000","created_at":"2020-09-11 09:26:28","updated_at":"2020-09-11 09:26:28"}]');
console.log($arr);

【讨论】：