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PS
class Calculator {
private _result = 0;
get result() {
return this._result;
}
set(val: number) {
this._result = val;
return this;
}
add(val: number) {
this._result += val;
return this;
}
sub(val: number) {
this._result -= val;
return this;
}
}
console.log(new Calculator().set(2).add(3).sub(1).result); // 4
ДВ
class Calculator {
private _result = 0;
get result() {
return this._result;
}
set(val: number) {
this._result = val;
return this;
}
add(val: number) {
this._result += val;
return this;
}
sub(val: number) {
this._result -= val;
return this;
}
}
console.log(new Calculator().set(2).add(3).sub(1).result); // 4
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