JavaScript查找一个数组中符合某个条件的值，并将符合条件的值存入新的数组

1. 利用find函数和es6箭头函数，下面方法取到数组中满足条件的第一个元素；

[code]var newArray  = {};//新对象
var array = [
{name:'aiai',age:18},
{name:'sisi',age:18},
{name:'lulu',age:18},
{name:'sisi',age:19}
];
//查找符合条件值并存入新数组
newArrar = this.array.find((item) => {
if(item.name === 'sisi'){
return item
}
})
//此时 newArray = {name:'sisi',age:18}

2. 查找符合条件的所有元素

[code]var newArray  = [];//新数组
var j = 0;
var array = [
{name:'aiai',age:18},
{name:'sisi',age:18},
{name:'lulu',age:18},
{name:'sisi',age:19}
]; //目标数组

//查找符合条件值并存入新数组
for(let i in array){
if(array[i].name == 'sisi'){
newArray[j++] = array[i]
}
}
//此时 newArray = [{name:'sisi',age:18},{name:'sisi',age:19}]