(A) operator concepts and definitions
1. The operator definition and classification:
2. The operator Category:
3. The operator binding
(B) operator
1. The addition operator:
2. subtraction operator: addition and subtraction is not very different, the fourth point NOTE: string subtraction result will be Number.
3. The multiplication operator:
4. division operator: string will do the divisions into Number
The modulo operator
6. The unary operators:
7. assignment operator:
8. increment / decrement operators had
9. The logical operators:
Logic and
Logical or
Logical NOT:
10. Relational operators:
Comma expression:
Ternary operator:
Operator priority:
operation:
<!DOCTYPE html>
<html>
<head>
<title>
User keyboard input three integers, and outputs the maximum is found
</title>
</head>
<script>
// three integers user input from the keyboard, and outputs the maximum is found
1 // Define variable
was num1, num2, num3, max;
// 2 receives user input
num1 = parseFloat (prompt ( 'Enter the first integer!'));
num2 = + (prompt ( 'Enter second integer!'));
num3 = parseInt (prompt ( 'Enter third integer!'));
// 3. Comparative
max = num1>num2?num1:num2;
max = max>num3?max:num3;
// output 4:
console.log(max);
</script>
<body>
</body>
</ Ht command>