for example, my initial data is
initdata:{
name: 1;
name: 2;
name: 3;
name: 4;
name: 5;
}
, the new data is
newdata:{
name: 1;
name: 2;
name: 3;
name: 4;
name: 5;
name: 6;
name: 7;
name: 8;
name: 9;
name: 10;
}
so, when I setData (newdata), does Mini Program automatically compare data, twice and then update only the next 5 new pieces of data, or directly replace initdata? with newdata?
these prestigious ones will click the minus sign, which is a normal question.
I estimate that the principle is similar to that of react's setState
setState(state, callback) {
let s = this.state;
if (!this.prevState) this.prevState = extend({}, s);
extend(s, typeof state==='function' ? state(s, this.props) : state);
if (callback) this._renderCallbacks.push(callback);
enqueueRender(this); // enqueueRender
}export function extend(obj, props) {
for (let i in props) obj[i] = props[i];
return obj;
}never met
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