Lodash _.renameKeys()方法接受一個對象和一個映射對象,並返回一個新對象,其中給定對象的鍵已重命名為keyMap中的相應值。
用法:
_.renameKeys(obj, mapObj);
參數:該方法接受上述和以下所述的兩個參數:
- obj:給定對象以創建新對象。
- mapObj:給定Map對象以創建新對象。
返回值:此方法返回一個生成的對象。
注意:由於它需要安裝lodash.js contrib庫,因此在常規JavaScript中將無法使用。可以使用以下命令安裝Lodash.js contrib庫:
npm install lodash-contrib
範例1:
// Defining underscore lodash variable
var _ = require('lodash-contrib');
// Declare and object and rename its key
var obj = _.renameKeys( { 1:"Geeks",
2:"Computer_Science_Portal" },
{ 1:"g", 2:"c" });
console.log("Generated Object:", obj);
輸出:
Generated Object:Object {c:"Computer_Science_Portal", g:"Geeks"}
範例2:
// Defining underscore lodash variable
var _ = require('lodash-contrib');
// Declare and object and rename its key
var obj = _.renameKeys(
{ 1:"Geeks", 2:"Computer_Science_Portal",
3:"Geeks" }, { 1:"g", 2:"c", 3:"g" });
console.log("Generated Object:", obj);
輸出:
Generated Object:Object {c:"Computer_Science_Portal", g:"Geeks"}
範例3:
// Defining underscore lodash variable
var _ = require('lodash-contrib');
// Declare and object and rename its key
var obj = _.renameKeys( [ "Computer_Science_Portal", "Geeks" ],
{ 0:"a", 1:"b", 3:"g" });
console.log("Generated Object:", obj);
輸出:
Generated Object:Object {c:"Computer_Science_Portal", g:"Geeks"}
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注:本文由純淨天空篩選整理自AshokJaiswal大神的英文原創作品 Lodash _.renameKeys() Method。非經特殊聲明,原始代碼版權歸原作者所有,本譯文未經允許或授權,請勿轉載或複製。