What is immutable.js ? - Githubissues

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What is immutable.js ? #73

Open zhouzhongyuan opened 7 years ago

zhouzhongyuan commented 7 years ago

immutable: A variable is said to have been mutated when its initial value has changed afterward. A variable is said to be immutable if it can't be mutated. For example:
```
var myArray = [];
myArray.push("firstEl") // myArray is being mutated
```
from mbeaudru/modern-js-cheatsheet: Cheatsheet for the JavaScript knowledge you will frequently encounter in modern projects.

zhouzhongyuan commented 7 years ago

Error1

Statement:

Immutable.fromJS(items)

items如下

[
    {
        "caption": "已输入",
        "value": "10",
        "key": "10"
    },
    {
        "caption": "已完成",
        "value": "90",
        "key": "90"
    },
    {
        "caption": "已关闭",
        "value": "100",
        "key": "100"
    }
]

Error:

Expected [K, V] tuple: i

items的格式不正确