there is an object
var obj = {
a: {
b: {
c: 3
}
}
};
var text = "a.b.c" how to modify the value of c according to text path to 4 , so that the result is
{
a: {
b: {
c: 4
}
}
} Mini Program"s setData method supports data path input. I just want to know how to implement this function. The known idea is recursion
let text = "a.b.c";
this.setData({
[text]: 4
})Thank you for your help
var obj = {
a: {
b: {
c: 3
}
}
}
var text = 'a.b.c'
function setData(obj, config) {
let keys = Object.keys(config)
keys.forEach(key => {
cur = obj
let names = key.split('.')
let last = names.length - 1
names.forEach((name, index) => {
if (!cur[name]) cur[name] = {}
if (last === index) {
cur[name] = config[key]
} else {
cur = cur[name]
}
})
})
}
setData(obj, {[text]: 4, 'e.f': 6}) // obj: {a:{b:{c:4}},e:{f:6}}}function setObjText(o,t,v){ //
let tmp=o;
let t2k=t.split('.');
for(let i=0;i<t2k.length;iPP){
tmp[t2k[i]]=typeof(tmp[t2k[i]])=='object'?tmp[t2k[i]]:{} ;
tmp=tmp[t2k[i]];
}
tmp=value;
}
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