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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 | 1x 5x 5x 5x 5x 5x 10x 10x 10x 7x 5x 2x 2x 10x 5x 5x 10x 5x | /**
* @description 设置 object 对象中对应 path 属性路径上的值，如果 path 不存在，则创建
* @function set
* @param {object} object - 要修改的对象
* @param {(string | Array<string, number>)} path - 要设置的对象路径
* @param {any} val - 要设置的值
* @returns {object} 返回修改后的对象
* @author liukun <919590347@qq.com>
* @example
* import { set } from '@wont/utils'
* const obj = { "editVal": 0, "editArrVal": [0], "setNestVal": {}, "setArrVal": [] }
* set(obj, 'editVal', 2) // returns { "editVal": 2, "editArrVal": [0], "setNestVal": {}, "setArrVal": [] }
* set(obj, 'editArrVal[0]', 2) // returns { "editVal": 2, "editArrVal": [2], "setNestVal": {}, "setArrVal": [] }
* set(obj, 'setNestVal.setNestVal.setNestVal', 2) // returns { "editVal": 2, "editArrVal": [2], "setNestVal": { setNestVal: { setNestVal: 2 } }, "setArrVal": [] }
* set(obj, 'setArrVal[1]', 2) // returns { "editVal": 2, "editArrVal": [2], "setNestVal": { setNestVal: { setNestVal: 2 } }, "setArrVal": [ empty, 2] }
* set(obj, ['arr', 0], 0) // returns { "editVal": 2, "editArrVal": [2], "setNestVal": { setNestVal: { setNestVal: 2 } }, "setArrVal": [ empty, 2], arr: [0] }
*/
export type Path = string | (string | number)[]
export function set(object: object, path: Path, val: any): object {
const paths = Array.isArray(path)
? path
: path.replace(/\[(\d+)\]/g, '.$1').split('.')
let current = object
const len = paths.length
let i = 0
while (i < len) {
const key = paths[i]
const isLast = i === len - 1
if (!current[key]) {
if (isLast) {
current[key] = val
} else {
const isArray = /^\d$/.test(paths[i + 1].toString())
current[key] = isArray ? [] : {}
}
}
if (isLast) {
current[key] = val
} else {
current = current[key]
}
i += 1
}
return object
}
// const obj = {
// editVal: 0,
// editArrVal: [0],
// setNestVal: {},
// setArrVal: [],
// }
// console.log('set :>> ', JSON.stringify(set(obj, 'editVal', 2), null, 2))
// console.log('set :>> ', JSON.stringify(set(obj, 'editArrVal[0]', 2), null, 2))
// console.log('set :>> ', JSON.stringify(set(obj, 'setNestVal.setNestVal.setNestVal', 2), null, 2))
// console.log('set :>> ', JSON.stringify(set(obj, 'setArrVal[1]', 2), null, 2))
// TODO 循环引用问题待处理
// console.log('set :>> ', set(obj, 'obj.test', obj))
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