Typescript-arithmetic-operators-examples

TypeScript-算術演算子の例

変数aおよびbの値がそれぞれ10および5であると仮定します。

Operator	Description	Example
PLUS (Addition)	returns the sum of the operands	a PLUS b is 15
- (Subtraction)	returns the difference of the values	a - b is 5
AST (Multiplication)	returns the product of the values	a AST b is 50
/(Division)	performs a division operation and returns the quotient	a/b is 2
% (Modulus)	performs a division and returns the remainder	a % b is 0
PLUSPLUS (Increment)	Increments the value of the variable by one	aPLUSPLUS is 11
— (Decrement)	Decrements the value of the variable by one	a-- is 9

例

var num1:number = 10
var num2:number = 2
var res:number = 0

res = num1 + num2
console.log("Sum:        "+res);

res = num1 - num2;
console.log("Difference: "+res)

res = num1*num2
console.log("Product:    "+res)

res = num1/num2
console.log("Quotient:   "+res)

res = num1%num2
console.log("Remainder:   "+res)

num1++
console.log("Value of num1 after increment "+num1)

num2--
console.log("Value of num2 after decrement "+num2)

コンパイル時に、次のJavaScriptコードが生成されます。

//Generated by typescript 1.8.10
var num1 = 10;
var num2 = 2;
var res = 0;

res = num1 + num2;
console.log("Sum:        " + res);

res = num1 - num2;
console.log("Difference: " + res);

res = num1 * num2;
console.log("Product:    " + res);

res = num1/num2;
console.log("Quotient:   " + res);

res = num1 % num2;
console.log("Remainder:   " + res);

num1++;
console.log("Value of num1 after increment " + num1);

num2--;
console.log("Value of num2 after decrement " + num2);

上記のプログラムの出力は以下のとおりです-

Sum: 12
Difference: 8
Product: 20
Quotient : 5
Remainder: 0
Value of num1 after increment: 11
Value of num2 after decrement: 1