Cascade
解釋
一般的Code
var calNum = function(num){
this.num = num;
this.add = function(newNum) {
this.num += newNum;
};
this.sub = function(newNum) {
this.num -= newNum;
};
this.multi = function(newNum) {
this.num *= newNum;
};
this.division = function(newNum){
this.num /= newNum;
};
};
a.add(100);
console.log( a.num ); // 200
a.sub(50);
console.log( a.num ); // 150
//這邊呼叫兩次兩次才達到目的Cascade Style Code
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