js如何删除数组中某一个元素？

今天这边介绍一种简单又快速的方法，使用filtter过滤器

var data = [ 
    {"id":"1","name":"小刘","age":"25"},
    {"id":"2","name":"小华","age":"24"},
    {"id":"3","name":"小佳","age":"27"},
    {"id":"4","name":"小王","age":"24"},
    {"id":"5","name":"小何","age":"22"},

];

new_data = data.filter(function(element, index) {
    return element['age'] >= 25; 
});

console.log(new_data);