jsjson转化为map类型，取值，取Keyjson数组排序
entries()、values()、keys()总结var obj = { foo: 'bar', baz: 42 };
console.log(Object.keys(obj)) //["foo", "baz"]
console.log(Object.values(obj)) //["bar", 42]
console.ies(obj)) //[["foo", "bar"], ["baz", 42]]
//数值排序
res=[{series:10,name:'001'},{series:100,name:'002'}]
function compare(property) {
return function (a, b) {
var value1 = a[property];
var value2 = b[property];
return value1 - value2;
}
}
res = res.sort(compare('series'));
//要排序的数据
let data = [
{chinese: '蔡司', english: 'Chase'},
{chinese: '艾伦', english: 'Allen'},
{chinese: '左拉', english: 'Zola'},
{chinese: '贝克', english: 'Baker'},
{chinese: '伯格', english: 'Berg'},
{chinese: '菲奇', english: 'Fitch'},
{chinese: '迪安', english: 'Dean'},
{chinese: '厄尔', english: 'Earle'},
{chinese: '亨利', english: 'Henry'},
]
//根据汉字⾸字母排序
//使⽤箭头函数
//【注】localeCompare() 是js内置⽅法
// data.sort((a, b)=> b.chinese.localeCompare(a.chinese, 'zh')); //z~a 排序
// data.sort((a, b)=> a.chinese.localeCompare(b.chinese, 'zh')); //a~z 排序
// console.log(data);
/
/根据英⽂排序⽐较⾸字母ASCLL码
console.log(data[0].english.charCodeAt(0));
js获取json的key和value
// data.sort((a, b) => b.english.charCodeAt(0) - a.english.charCodeAt(0)); //z~a 排序
data.sort((a, b) => a.english.charCodeAt(0) - b.english.charCodeAt(0)); //a~z 排序
console.log(data);

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