解释这段代码clickDingMsgRowButton(type, item) { item.disabled = false switch (type) { case 'edit': item.disabled = false break case 'save': if (item.selected == null || item.selected.length === 0) { this.$message.warning('数据不能为空') return } else { const newValue = item.selected.join(',') // 没有修改 if (item.configValue === newValue) { item.disabled = true return } // 有修改 item.value = newValue item.disabled = true this.updateDingMessageReceiverValue(item) } break case 'cancel': if (item.selected.join(',') !== item.configValue) { item.selected = item.configValue.split(',') } item.disabled = true break } },
时间: 2023-04-04 12:00:23 浏览: 66
这段代码是一个函数,名为clickDingMsgRowButton,它接受两个参数:type和item。函数中使用了一个switch语句,根据type的不同值执行不同的操作。当type为'edit'时,将item的disabled属性设置为false;当type为'save'时,判断item的selected属性是否为空,如果为空则弹出警告框,否则将item的value属性设置为selected数组的字符串形式,并调用updateDingMessageReceiverValue函数更新数据;当type为'cancel'时,将item的selected属性设置为configValue属性的字符串形式,并将item的disabled属性设置为true。
相关问题
优化代码newArr.map((item) => { item.dialog.readonly = false; if (data.storageType == 1) { if ( item.key == 'name' || item.key == 'brand' || item.key == 'model' || item.key == 'specification' || item.key == 'unit' ) { item.dialog.disabled = true; } } else { if ( item.key == 'name' || item.key == 'brand' || item.key == 'model' || item.key == 'specification' || item.key == 'unit' ) { item.dialog.disabled = false; } } if (data.type == 2) { if (item.key == 'mainAssetCode') { item.dialog.hide = false; } } else { if (item.key == 'mainAssetCode') { item.dialog.hide = true; } } if (data.storageType == 1) { if (item.key == 'orderCode') { item.dialog.hide = false; } } else { if (item.key == 'orderCode') { item.dialog.hide = true; } } });
可以使用对象解构和简化条件语句来优化上述代码,如下所示:
```
newArr.forEach((item) => {
const { dialog, key } = item;
dialog.readonly = false;
if (data.storageType === 1) {
dialog.disabled = ['name', 'brand', 'model', 'specification', 'unit'].includes(key);
dialog.hide = key === 'orderCode' ? false : dialog.hide;
} else {
dialog.disabled = false;
dialog.hide = key === 'orderCode' ? true : dialog.hide;
}
if (data.type === 2) {
dialog.hide = key === 'mainAssetCode' ? false : dialog.hide;
} else {
dialog.hide = key === 'mainAssetCode' ? true : dialog.hide;
}
});
```
这样做可以使代码更加简洁易读,同时减少重复的代码块。
优化代码 for (let item of that.parentTemplate) { if (item.key == 'existContract') { if (!item.disabled || !Array.isArray(item.disabled)) { item.disabled = []; } if (e === 1) { item.disabled = item.disabled.filter((disabledItem) => disabledItem != index); } else if (e === 2 || e == undefined || e === '') { that.changeForm({ ['existContract' + more]: '', }); item.disabled.push(index); } else { item.disabled = item.disabled.filter((disabledItem) => disabledItem != index); } } if (item.key == 'contractCode') { if (!item.disabled || !Array.isArray(item.disabled)) { item.disabled = []; } if (e === 1) { } else if (e === 2 || e == undefined || e === '') { that.changeForm({ ['contractCode' + more]: '', }); item.disabled.push(index); } else { item.disabled = item.disabled.filter((disabledItem) => disabledItem != index); } } if (item.key == 'isProjectCost') { if (!item.disabled || !Array.isArray(item.disabled)) { item.disabled = []; } if (e === 1) { item.disabled = item.disabled.filter((disabledItem) => disabledItem != index); } else if (e === 2 || e == undefined || e === '') { that.changeForm({ ['isProjectCost' + more]: '', }); item.disabled.push(index); } else { item.disabled = item.disabled.filter((disabledItem) => disabledItem != index); } } }
你可以尝试优化这段代码,减少重复的代码块。你可以使用一个数组来存储需要处理的字段名,然后使用循环来处理每个字段。
```javascript
const fields = ['existContract', 'contractCode', 'isProjectCost'];
for (let item of that.parentTemplate) {
for (let field of fields) {
if (item.key === field) {
if (!item.disabled || !Array.isArray(item.disabled)) {
item.disabled = [];
}
if (e === 1) {
item.disabled = item.disabled.filter((disabledItem) => disabledItem != index);
} else if (e === 2 || e == undefined || e === '') {
that.changeForm({
[field + more]: '',
});
item.disabled.push(index);
} else {
item.disabled = item.disabled.filter((disabledItem) => disabledItem != index);
}
}
}
}
```
通过引入一个 `fields` 数组,我们可以避免多次重复判断每个字段的 key。这样可以使代码更简洁,并且易于维护。