JSON格式的字符串校验

1.有时我们需要判断JSON格式的数据是否正确,这时可以使用Javascript的JSON.parse()来进行判断,之后可以将不符合JSON格式规范的数据通过try{}catch{}捕获

try{
	let data = {
	"name": "brant",
	"age": "22",
	"sex": "男"
}
	let dataNew = JSON.parse(data)
	console.log("JSON格式符合规范")
}catch{
	console.log("JSON格式不符合规范")
}

2.JSON格式的数据类型有许多,因此为了区分不同的JSON数据,可以借助通过typeof xxx,比如

1
{
	"name": "brant",
	"age": "22",
	"sex": "男"
}
2
{
	"name": "brant",
	"age": "22",
	"sex": "男",
	"person": ["brant","22","男"]
}
3
{
	"name": "brant",
	"age": "22",
	"sex": "男",
	"person": ["brant","22","男"],
	"person": {
		"name": "brant",
		"age": "22",
		"sex": "男",
		"person": ["brant","22","男"],
	}
}

3.自定义JSON正则: 详情链接

var isJSON = function (str){
        if (/^[\],:{}\s]*$/.test(str.replace(/\\["\\\/bfnrtu]/g, '@').
    replace(/"[^"\\\n\r]*"|true|false|null|-?\d (?:\.\d*)?(?:[eE][ \-]?\d )?/g, ']').
    replace(/(?:^|:|,)(?:\s*\[) /g, ''))) {
        return true;
    }else{
        return false;
    } 
}