Google 68 reports an error Array.from(…).flat is not a function
Solution 1: Upgrade the browser directly, and there will be no compatibility issues
Solution 2: Manually write a falt function to the prototype of Array and put it in the referenced file
if (!Array.prototype.flat) {
Array.prototype.flat = function(count) {
let c = count || 1;
let len = this.length;
let exe = [];
if (this.length == 0) return this;
while (c--) {
let _arr = [];
let flag = false;
if (exe.length == 0) {
flag = true;
for (let i = 0; i < len; i++) {
if (this[i] instanceof Array) {
exe.push(...this[i]);
} else {
exe.push(this[i]);
}
}
} else {
for (let i = 0; i < exe.length; i++) {
if (exe[i] instanceof Array) {
flag = true;
_arr.push(...exe[i]);
} else {
_arr.push(exe[i]);
}
}
exe = _arr;
}
if (!flag && c == Infinity) {
break;
}
}
return exe;
}
}