javascript - 如何給一個對象添加動態屬性

問題描述

var options = {pageName: ’index’, position: 1800}var obj = {}現在要把這個屬性添加到obj中變成obj = { index:{position: options.position}}前面的index根據上面的pageName動態變化如何處理？

問題解答

var options = {pageName: ’index’, position: 1800}var obj = {} obj = { [options.pageName]:{position: options.position}}回答2：

var result = {};function objSet(keyName,targetName){ var obj = {}; for(var key in options){if( key == keyName){ var temp = {}; temp[targetName] = options[targetName]; obj[keyName] = temp; break;} } return obj;}result = objSet('pageName','position');//這樣？