JSON.stringify auto removed Object undefined value keys bug! ❌

JSON.stringify auto removed Object undefined value keys bug! ❌

JSON.stringify(this.ruleForm)
// undefined
this.ruleForm
// undefined

this.ruleForm = {id: 1, name: undefined, age: ''};
// {id: 1, name: undefined, age: ""}

JSON.stringify(this.ruleForm)
// "{"id":1,"age":""}"

demo

element-ui form form-item 自动绑定 bug & JSON.stringify

https://codepen.io/xgqfrms/pen/PobVdxo?editors=1111

refs

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