深度连接两个对象
Concatinating two objects deeply
我有这两个对象:
const tmp = {
pl: {
translation: {
states: {
foo: { name: 'bar' },
},
},
},
en: {
translation: {
states: {
foo: { name: 'bar' },
},
},
},
};
const tmp2 = {
pl: {
translation: {
states: {
foz: { name: 'baz' },
},
},
},
de: {
translation: {
states: {
foo: { name: 'bar' },
},
},
},
};
如何连接它们? pl部分是流畅的,它可以改变所以它必须是动态的。
我正在考虑混合使用 Object.keys 递归地执行此操作,但它似乎有点矫枉过正。
好了:
function merge(o1,o2){
const result = {}
for(const key of Object.keys(o1)) result[key] = key in o2 ? merge(o1[key],o2[key]) : o1[key];
for(const key of Object.keys(o2)) if(!(key in o1)) result[key] = o2[key];
return result;
}
lodash merge
将在这里发挥作用:
const tmp = {
pl: { translation: { states: { foo: { name: 'bar' } } } },
en: { translation: { states: { foo: { name: 'bar' } } } },
};
const tmp2 = {
pl: { translation: { states: { foz: { name: 'baz' } } } },
de: { translation: { states: { foo: { name: 'bar' } } } },
};
console.log(_.merge(tmp, tmp2));
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.20/lodash.min.js"></script>
我会建议一种更标准的方法,通用的,尤其是没有库的方法:
const extend = (isDeep, objects) => {
// Variables
let extended = {};
let deep = isDeep;
// Merge the object into the extended object
const merge = function (obj) {
for (let prop in obj) {
if (obj.hasOwnProperty(prop)) {
if (deep && Object.prototype.toString.call(obj[prop]) === '[object Object]') {
// If we're doing a deep merge and the property is an object
extended[prop] = extend(deep, [extended[prop], obj[prop]]);
} else {
// Otherwise, do a regular merge
extended[prop] = obj[prop];
}
}
}
};
// Loop through each object and conduct a merge
for (let argument of objects) {
merge(argument)
}
return extended;
};
您只需调用即可使用它:
extend(true, [tmp, tmp2])
第一个布尔参数用于执行深度合并或常规合并。
我有这两个对象:
const tmp = {
pl: {
translation: {
states: {
foo: { name: 'bar' },
},
},
},
en: {
translation: {
states: {
foo: { name: 'bar' },
},
},
},
};
const tmp2 = {
pl: {
translation: {
states: {
foz: { name: 'baz' },
},
},
},
de: {
translation: {
states: {
foo: { name: 'bar' },
},
},
},
};
如何连接它们? pl部分是流畅的,它可以改变所以它必须是动态的。
我正在考虑混合使用 Object.keys 递归地执行此操作,但它似乎有点矫枉过正。
好了:
function merge(o1,o2){
const result = {}
for(const key of Object.keys(o1)) result[key] = key in o2 ? merge(o1[key],o2[key]) : o1[key];
for(const key of Object.keys(o2)) if(!(key in o1)) result[key] = o2[key];
return result;
}
lodash merge
将在这里发挥作用:
const tmp = {
pl: { translation: { states: { foo: { name: 'bar' } } } },
en: { translation: { states: { foo: { name: 'bar' } } } },
};
const tmp2 = {
pl: { translation: { states: { foz: { name: 'baz' } } } },
de: { translation: { states: { foo: { name: 'bar' } } } },
};
console.log(_.merge(tmp, tmp2));
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.20/lodash.min.js"></script>
我会建议一种更标准的方法,通用的,尤其是没有库的方法:
const extend = (isDeep, objects) => {
// Variables
let extended = {};
let deep = isDeep;
// Merge the object into the extended object
const merge = function (obj) {
for (let prop in obj) {
if (obj.hasOwnProperty(prop)) {
if (deep && Object.prototype.toString.call(obj[prop]) === '[object Object]') {
// If we're doing a deep merge and the property is an object
extended[prop] = extend(deep, [extended[prop], obj[prop]]);
} else {
// Otherwise, do a regular merge
extended[prop] = obj[prop];
}
}
}
};
// Loop through each object and conduct a merge
for (let argument of objects) {
merge(argument)
}
return extended;
};
您只需调用即可使用它:
extend(true, [tmp, tmp2])
第一个布尔参数用于执行深度合并或常规合并。