数组的fill方法
Array.prototype.MyFill= function (value, start = 0, end) {
end = end || this.length
for (let i = start; i < end; i++) {
this[i] = value
}
return this
}
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数组的fill方法Array.prototype.MyFill= function (value, start = 0, end) {
end = end || this.length
for (let i = start; i < end; i++) {
this[i] = value
}
return this
}