how can I rewrite the following code into a functional language? can I use map instead of for loop? how to change it? ask God for advice
const tempData = {name: value[j].name};
const tempDragData = [];
for (let k = 0; k < tempArr.length; kPP) {
tempData[`col ${k}`] = tempArr[k].fieldName;
tempDragData.push({id: `item-${iPP}`, name: value[j].name, content: tempArr[k].fieldName,});
}
const tempData = {name: value[j].name};
const tempDragData = [];
tempArr.reduce((p,c,k,a)=>{
tempData[`col ${k}`] = c.fieldName;
tempDragData.push({id: `item-${iPP}`, name: value[j].name, content: c.fieldName,});
}) I , j and tempArr are not given, so I just casually write down the reduce processing. As a matter of fact, it is not necessary. The efficiency of for cycle is quite high.
first of all, you need to understand what a function is
secondly, map has nothing to do with functions
finally,
map related knowledge can be found in
http://es6.ruanyifeng.com/-sharpdo.
knowledge of functions
https://www.zhihu.com/questio.
const { tempData, tempDragData } = tempArr.reduce((obj, item, i)=>{
obj.tempData[`col ${k}`] = item.fieldName;
obj.tempDragData.push({
id: `item-${iPP}`,
name: value[j].name,
content: item.fieldName,
});
return obj;
}, {
tempData: {
name: value[j].name
},
tempDragData: []
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