配列要素をオブジェクト配列につづり合わせる

940 ワード

JavaScript

テーマ:次の配列arr 1、arr 2があります.まずarr 1とarr 2の要素をarr 3の形につなぎ合わせてください.

var arr1=[1000,2000,3000];
var arr2=[1,2,3];
var arr3 = [{"name":"1000","value","1"},{"name":"2000","value","2"},{"name":"3000","value","3"}];

方法:


	var arr1=[1000,2000,3000];
	var arr2=[1,2,3];
	var arr3 = [];
	var arr32 = [];

	arr1.forEach(function(item,index){
		arr3.push({
			value: arr2[index],
			name: arr1[index]
		})
	});
	console.log(arr3);

	arr32 = arr1.map(function(item,index){
		return {
			name: item,
			value: arr2[index]
		}
	});
	console.log(arr32);

	var arr33 = "[";
	for(var i=0;i<arr1.length;i++){
		arr33 += "{'value':"+arr2[i]+",'name':"+arr1[i]+"},";
	}
	arr33 = arr33.substring(0,arr33.lastIndexOf(','));
	arr33 += "]";
	arr33 = eval("("+arr33+")");
	console.log(arr33)

Javascriptの4つの関数の呼び出し方法