功能：
var fruitArry=[{name:'durian'},{name:'peach'},{name:'banana'},{name:'pitaya'},{name:'apple'},{name:'cherry'}];
var fruit={'banana':'香蕉','peach':'桃子','durian':'榴莲','pitaya':'火龙果'};
将 fruitArry 中 name 的值根据 fruit 的 key 值进行替换：如果 fruitArry 的值在 fruit 中也有，那就将 fruitArry 替换为 fruit 的值，如果没有，则值不变。
方法一：
<script type="text/javascript">
var fruitArry = [{
name: 'durian'
}, {
name: 'peach'
}, {
name: 'banana'
}, {
name: 'pitaya'
}];
var fruit = {
'banana': '香蕉',
'peach': '桃子',
'durian': '榴莲',
'pitaya': '火龙果'
};
for (var key in fruit) {
for (var i = 0; i < fruitArry.length; i++) {
if (key == fruitArry[i].name) {
fruitArry[i].name = fruit[key];
}
}
}
console.log(fruitArry);
</script>
方法二：
1 <script type="text/javascript"> 2 var fruitArry = [{ 3 name: 'durian' 4 }, { 5 name: 'peach' 6 }, { 7 name: 'banana' 8 }, { 9 name: 'pitaya' 10 }, { 11 name: 'apple ' 12 }, { 13 name: 'cherry ' 14 }]; 15 var fruit = { 16 'banana': '香蕉', 17 'peach': '桃子', 18 'durian': '榴莲', 19 'pitaya': '火龙果' 20 }; 21 fruitArry.forEach(function(item) { 22 if (fruit[item.name]) { 23 item.name = fruit[item.name]; 24 } 25 }); 26 console.log(fruitArry); 27 </script>
方法三：
<script type="text/javascript">
var fruitArry = [{
name: 'durian'
}, {
name: 'peach'
}, {
name: 'banana'
}, {
name: 'pitaya'
}, {
name: 'apple '
}, {
name: 'cherry '
}];
var fruit = {
'banana': '香蕉',
'peach': '桃子',
'durian': '榴莲',
'pitaya': '火龙果'
};
fruitArry = fruitArry.map(function(item) {
if (fruit[item.name]) {
return {
name: fruit[item.name]
}
} else {
return {
name: item.name
}
}
});
console.log(fruitArry);
</script>
打印结果：
