Skip to content

Commit 17277c9

Browse files
coderzamancoderzaman
committed
Operators
1 parent 5f3b8c2 commit 17277c9

File tree

2 files changed

+196
-0
lines changed

2 files changed

+196
-0
lines changed

‎04. Operators/index.html

Lines changed: 14 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,14 @@
1+
<!DOCTYPE html>
2+
<html lang="en">
3+
<head>
4+
<meta charset="UTF-8">
5+
<meta name="viewport" content="width=device-width, initial-scale=1.0">
6+
<title>Document</title>
7+
</head>
8+
<body>
9+
<h1 id="showMessage"></h1>
10+
<!-- link javacript file -->
11+
<script src="js/script.js"></script>
12+
13+
</body>
14+
</html>

‎04. Operators/js/script.js

Lines changed: 182 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,182 @@
1+
// Operator
2+
// a character or group of characters that tells the compiler or interpreter to perform a specific action
3+
// Arithmetics Oprators: + - * / %
4+
5+
var x = 10;
6+
var y = 39;
7+
8+
console.log(x+y);
9+
console.log(y-x);
10+
console.log(x*y);
11+
console.log(y/x);
12+
console.log(x%y);
13+
14+
15+
var z = x + y;
16+
console.log(z);
17+
18+
19+
// Exponential Operator
20+
x = 2**2;
21+
console.log(x);
22+
23+
// increment and decrement
24+
var a = 30;
25+
var b = 20;
26+
27+
28+
console.log(a++);
29+
console.log(++b);
30+
31+
console.log(a);
32+
33+
//First assign the value in b thne increment a value
34+
c = a++;
35+
console.log(c);
36+
console.log(a);
37+
38+
//Fist increment value then assign the value
39+
c = ++b;
40+
console.log(c);
41+
console.log(b);
42+
43+
// precedence of aritmethic equation
44+
// () = > first
45+
// ^ => second
46+
// / * => third
47+
// + - => fourth
48+
49+
var eq = 8 + 3 - 4 * 3 / 2 ** 2
50+
console.log(eq);
51+
52+
53+
// String Operator:
54+
55+
// concat tow String
56+
57+
var word1 = "Hello, ";
58+
var word2 = "World";
59+
60+
var word3 = word1 + word2;
61+
console.log(word3);
62+
63+
// It concating follow left right. If possible to adding and
64+
// subtraction or any other aritmethic operation it calculate it then concat with string
65+
66+
var word4 = 10 - 3 + 3 + "hello world";
67+
console.log(word4);
68+
69+
var word5 = 8 + 3 - 4 * 3 / 2 ** 2 + " world";
70+
console.log(word5);
71+
72+
//If not any scope to operate arithmetic operations it concat with string
73+
74+
word5 = "hello world" + 8 + 3;
75+
console.log(word5);
76+
77+
//If two string is a number it doing substraction operations
78+
word5 = "23" - "2";
79+
console.log(word5);
80+
81+
word5 = "23" - 3;
82+
console.log(word5);
83+
84+
85+
word5 = "23" + 3;
86+
console.log(word5);
87+
88+
// If one operand a char and operate with sub operation result will be not a number
89+
90+
word5 = "d" - 3;
91+
console.log(word5);
92+
93+
// Conditional Operators
94+
// Comparison operators can be used in conditional statements to compare values and take action depending on the result:
95+
// Result will be of comparison operation is either true or false
96+
//Comarison opeator are: ==, ===, !=, !==, >, <, <=, >=
97+
98+
var x = 3;
99+
var y = "3";
100+
//== operator check one the value is equal or not. if equal it can be true otherwise false
101+
console.log(x==y);
102+
103+
//=== operator check value and type. if equal it can be true otherwise false
104+
console.log(x===y);
105+
106+
x = 4;
107+
y = 4;
108+
console.log(x==y);
109+
110+
// != operator check the value in not equal to other operator. It check only value not type
111+
x = 3;
112+
y = 4;
113+
114+
console.log(x!=y);
115+
116+
117+
// != operator check the value in not equal to other operator. It check value and type both
118+
x = 3;
119+
x = "3";
120+
y = 3;
121+
console.log(x!=y);
122+
console.log(x!==y);
123+
124+
// compare with two number greter than equal or greater, less then equal or less
125+
console.log(x>=y);
126+
console.log(x>y);
127+
console.log(x<=y);
128+
console.log(x<y);
129+
130+
131+
132+
// Logical Operators
133+
// Logical operators are used to determine the logic between variables or values.
134+
x = 6;
135+
y = 3;
136+
137+
console.log(x < 10 && y > 1);
138+
console.log((x == 5 || y == 5));
139+
console.log((x == 5 || y == 3));
140+
console.log((x == 6 && !(y == 3)));
141+
142+
// Conditional (Ternary) Operator
143+
// JavaScript also contains a conditional operator that assigns a value to a variable based on some condition.
144+
age = 32;
145+
let voteable = (age < 18) ? "To Young" : "Old enough";
146+
console.log(voteable);
147+
148+
149+
//Compare with tree number;
150+
let p = 34;
151+
let q = 42;
152+
let r = 42;
153+
154+
let maxNumb = (p >= q) ? (p >= r) ? "P is greater": "R is greater" : (q >= r) ? "Q is greater" : "R is greater";
155+
156+
console.log(maxNumb);
157+
158+
// Assignment Operator
159+
// Assignment operator are =, +=, -=, *=, /=,%=, **==
160+
161+
x = 10;
162+
x += 10;
163+
console.log(x);
164+
x -= 10;
165+
console.log(x);
166+
x *= 10;
167+
console.log(x);
168+
x /= 10;
169+
console.log(x);
170+
x %= 10;
171+
console.log(x);
172+
x = 2;
173+
x **= 10;
174+
console.log(x);
175+
176+
177+
// Excercise
178+
179+
var celTemp = prompt("Enter your temperature in celcius");
180+
var farenheit = 1.8 * celTemp + 32;
181+
alert("Farenheit: " + farenheit);
182+
console.log("Task Complete");

0 commit comments

Comments
 (0)