ﺖﭙﯾﺮﮑﺳﺍ ﺍﻭﺎﺟ ﻮﺤﻧ

فهرست مطالب

ﺖﺳﺍ ﻪﻧﻮﮕﭼ ﻪﮐ ﺖﺳﺍ ﻦﯿﻧﺍﻮﻗ ﺯﺍ ﯼﺍ ﻪﻋﻮﻤﺠﻣ ﺖﭙﯾﺮﮑﺳﺍ ﺍﻭﺎﺟ ﻮﺤﻧ

// How to create variables:
var x;
let y;

// How to use variables:
x = 5;
y = 6;
let z = x + y;

ﺖﭙﯾﺮﮑﺳﺍ ﺍﻭﺎﺟ ﺮﯾﺩﺎﻘﻣ

:ﺪﻨﮐ ﯽﻣ ﻒﯾﺮﻌﺗ ﺍﺭ ﺭﺍﺪﻘﻣ ﻉﻮﻧ ﻭﺩ ﺖﭙﯾﺮﮑﺳﺍ ﺍﻭﺎﺟ ﻮﺤﻧ

ﺖﺑﺎﺛ ﺮﯾﺩﺎﻘﻣ
ﺮﯿﻐﺘﻣ ﺮﯾﺩﺎﻘﻣ

.ﺪﻧﻮﺷ ﯽﻣ ﻩﺪﯿﻣﺎﻧ Literals ﺖﺑﺎﺛ ﺮﯾﺩﺎﻘﻣ

.ﺪﻨﯾﻮﮔ ﯽﻣ ﺮﯿﻐﺘﻣ ﺮﯿﻐﺘﻣ ﺮﯾﺩﺎﻘﻣ ﻪﺑ

Literals ﺖﭙﯾﺮﮑﺳﺍ ﺍﻭﺎﺟ

:ﺯﺍ ﺪﻨﺗﺭﺎﺒﻋ ﺖﺑﺎﺛ ﺮﯾﺩﺎﻘﻣ ﯼﺍﺮﺑ ﻢﻬﻣ ﯼﻮﺤﻧ ﻥﻮﻧﺎﻗ ﻭﺩ

1. ﺩﺍﺪﻋﺍ ﺪﻧﻮﺷ ﯽﻣ ﻪﺘﺷﻮﻧ ﺎﯾ ﺎﺑ

10.50

1001

→ ﺪﯿﻨﮐ ﻥﺎﺤﺘﻣﺍ ﺍﺭ ﻥﺁ ﻥﺎﺗﺩﻮﺧ

<!DOCTYPE html>
<html>
<body>

<h2>JavaScript Numbers</h2>

<p>Number can be written with or without decimals.</p>

<p id="demo"></p>

<script>
document.getElementById("demo").innerHTML = 10.50;
</script>

</body>
</html>

2. ﻪﺘﺷﺭﺎﻫ ﻪﻣﻮﯿﮔ ﺭﺩ ﻪﮐ ﺪﻨﺘﺴﻫ ﯽﻨﺘﻣﯽﻣ ﻪﺘﺷﻮﻧ ﯽﮑﺗ ﺎﯾ ﯽﯾﺎﺗﻭﺩ ﯼﺎﻫﺪﻧﻮﺷ:

"John Doe"

'John Doe'

→ ﺪﯿﻨﮐ ﻥﺎﺤﺘﻣﺍ ﺍﺭ ﻥﺁ ﻥﺎﺗﺩﻮﺧ

<!DOCTYPE html>
<html>
<body>

<h2>JavaScript Strings</h2>

<p>Strings can be written with double or single quotes.</p>

<p id="demo"></p>

<script>
document.getElementById("demo").innerHTML = 'John Doe';
</script>

</body>
</html>

ﺖﭙﯾﺮﮑﺳﺍ ﺍﻭﺎﺟ ﯼﺎﻫﺮﯿﻐﺘﻣ

ﺎﻫﺮﯿﻐﺘﻣ ،ﯽﺴﯾﻮﻧ ﻪﻣﺎﻧﺮﺑ ﻥﺎﺑﺯ ﮏﯾ ﺭﺩ

،ﺪﻨﮐ ﯽﻣ ﻩﺩﺎﻔﺘﺳﺍ var ﯼﺪﯿﻠﮐ ﺕﺎﻤﻠﮐ ﺯﺍ ﺖﭙﯾﺮﮑﺳﺍ ﺍﻭﺎﺟ

.ﺩﻮﺷﯽﻣ ﻩﺩﺎﻔﺘﺳﺍ ﺎﻫﺮﯿﻐﺘﻣ ﻪﺑ ﺮﯾﺩﺎﻘﻣ ﺺﯿﺼﺨﺗ ﯼﺍﺮﺑ ﯼﻭﺎﺴﻣ ﺖﻣﻼﻋ ﮏﯾ

ﺖﺳﺍ x ،ﺲﭙﺳ .ﺖﺳﺍ ﻩﺪﺷ ﻒﯾﺮﻌﺗ ﺮﯿﻐﺘﻣ ﮏﯾ ﻥﺍﻮﻨﻋ ﻪﺑ x ،ﻝﺎﺜﻣ ﻦﯾﺍ ﺭﺩ

let x;
x = 6;

→ ﺪﯿﻨﮐ ﻥﺎﺤﺘﻣﺍ ﺍﺭ ﻥﺁ ﻥﺎﺗﺩﻮﺧ

<!DOCTYPE html>
<html>
<body>

<h2>JavaScript Variables</h2>

<p>In this example, x is defined as a variable.
Then, x is assigned the value of 6:</p>

<p id="demo"></p>

<script>
let x;
x = 6;
document.getElementById("demo").innerHTML = x;
</script>

</body>
</html>

ﺖﭙﯾﺮﮑﺳﺍ ﺍﻭﺎﺟ ﯼﺎﻫﺭﻮﺗﺍﺮﭘﺍ

ﻪﺑ ( /*<" ﺪﻨﮐ ﯽﻣ ﻩﺩﺎﻔﺘﺳﺍ "code class="w3-codespan">+

(5 + 6) * 10

→ ﺪﯿﻨﮐ ﻥﺎﺤﺘﻣﺍ ﺍﺭ ﻥﺁ ﻥﺎﺗﺩﻮﺧ

<!DOCTYPE html>
<html>
<body>

<h2>JavaScript Operators</h2>

<p>JavaScript uses arithmetic operators to compute values (just like algebra).</p>

<p id="demo"></p>

<script>
document.getElementById("demo").innerHTML = (5 + 6) * 10;
</script>

</body>
</html>

.ﺪﻨﮐ ﯽﻣ ﻩﺩﺎﻔﺘﺳﺍ ﺺﯿﺼﺨﺗ ﯼﺍﺮﺑ ( = )/>ﺹﺎﺼﺘﺧﺍ ﺮﮕﻠﻤﻋ ﮏﯾ ﺯ

let x, y;
x = 5;
y = 6;

→ ﺪﯿﻨﮐ ﻥﺎﺤﺘﻣﺍ ﺍﺭ ﻥﺁ ﻥﺎﺗﺩﻮﺧ

<!DOCTYPE html>
<html>
<body>

<h2>Assigning JavaScript Values</h2>

<p>In JavaScript the = operator is used to assign values to variables.</p>

<p id="demo"></p>

<script>
let x, y;
x = 5;
y = 6;
document.getElementById("demo").innerHTML = x + y;
</script>

</body>
</html>

`ﺖﭙﯾﺮﮑﺳﺍ ﺍﻭﺎﺟ ﺕﺍﺭﺎﺒﻋ`

.ﺖﺳﺍ ﺎﻫﺮﮕﻠﻤﻋ ﻭ ﺎﻫﺮﯿﻐﺘﻣ ،ﺮﯾﺩﺎﻘﻣ ﺯﺍ ﯽﺒﯿﮐﺮﺗ ﺕﺭﺎﺒﻋ ﮏﯾ

.ﺩﻮﺷ ﯽﻣ ﻩﺪﯿﻣﺎﻧ ﯽﺑﺎﯾﺯﺭﺍ ﺕﺎﺒﺳﺎﺤﻣ

:ﺩﻮﺷ ﯽﻣ ﯽﺑﺎﯾﺯﺭﺍ 50 ﻪﺑ 10 * 5 ،ﻝﺎﺜﻣ ﻥﺍﻮﻨﻋ ﻪﺑ

5 * 10

→ ﺪﯿﻨﮐ ﻥﺎﺤﺘﻣﺍ ﺍﺭ ﻥﺁ ﻥﺎﺗﺩﻮﺧ

<!DOCTYPE html>
<html>
<body>

<h2>JavaScript Expressions</h2>

<p>Expressions compute to values.</p>

<p id="demo"></p>

<script>
document.getElementById("demo").innerHTML = 5 * 10;
</script>

</body>
</html>

:ﺪﻨﺷﺎﺑ ﺮﯿﻐﺘﻣ ﺮﯾﺩﺎﻘﻣ ﯼﻭﺎﺣ ﺪﻨﻧﺍﻮﺗ ﯽﻣ ﻦﯿﻨﭽﻤﻫ ﺕﺍﺭﺎﺒﻋ

 x * 10

→ ﺪﯿﻨﮐ ﻥﺎﺤﺘﻣﺍ ﺍﺭ ﻥﺁ ﻥﺎﺗﺩﻮﺧ

<!DOCTYPE html>
<html>
<body>

<h2>JavaScript Expressions</h2>

<p>Expressions compute to values.</p>

<p id="demo"></p>

<script>
var x;
x = 5;
document.getElementById("demo").innerHTML = x * 10;
</script>

</body>
</html>

.ﺎﻫ ﻪﺘﺷﺭ ﻭ ﺩﺍﺪﻋﺍ ﺪﻨﻧﺎﻣ ،ﺪﻨﺷﺎﺑ ﻪﺘﺷﺍﺩ ﯽﻔﻠﺘﺨﻣ ﻉﺍﻮﻧﺍ ﺪﻨﻧﺍﻮﺗ ﯽﻣ ﺮﯾﺩﺎﻘﻣ

:ﺩﻮﺷ ﯽﻣ ﯽﺑﺎﯾﺯﺭﺍ "ﻭﺩ ﻥﺎﺟ" ﻪﺑ ،"ﻭﺩ" + "" + "ﻥﺎﺟ" ،ﻝﺎﺜﻣ ﻥﺍﻮﻨﻋ ﻪﺑ

 "John" + " " + "Doe"

→ ﺪﯿﻨﮐ ﻥﺎﺤﺘﻣﺍ ﺍﺭ ﻥﺁ ﻥﺎﺗﺩﻮﺧ

<!DOCTYPE html>
<html>
<body>

<h2>JavaScript Expressions</h2>

<p>Expressions compute to values.</p>

<p id="demo"></p>

<script>
document.getElementById("demo").innerHTML = "John" + " "  + "Doe";
</script>

</body>
</html>

`ﺖﭙﯾﺮﮑﺳﺍ ﺍﻭﺎﺟ ﯼﺪﯿﻠﮐ ﺕﺎﻤﻠﮐ`

ﺩﻮﺷ ﯽﻣ ﻩﺩﺎﻔﺘﺳﺍ ﻩﮊﺍﻭ ﺪﯿﻠﮐ ﺖﭙﯾﺮﮑﺳﺍ ﺍﻭﺎﺟ

ﻦﯾﺍ

let x, y;
x = 5 + 6;
y = x * 10;

→ ﺪﯿﻨﮐ ﻥﺎﺤﺘﻣﺍ ﺍﺭ ﻥﺁ ﻥﺎﺗﺩﻮﺧ

<!DOCTYPE html>
<html>
<body>

<h2>The <b>let</b> Keyword Creates Variables</h2>

<p id="demo"></p>

<script>
let x, y;
x = 5 + 6;
y = x * 10;
document.getElementById("demo").innerHTML = y;
</script>

</body>
</html>

ﻦﯾﺍ

 var x, y;
x = 5 + 6;
y = x * 10;

→ ﺪﯿﻨﮐ ﻥﺎﺤﺘﻣﺍ ﺍﺭ ﻥﺁ ﻥﺎﺗﺩﻮﺧ

<!DOCTYPE html>
<html>
<body>

<h2>The var Keyword Creates Variables</h2>

<p id="demo"></p>

<script>
var x, y;
x = 5 + 6;
y = x * 10;
document.getElementById("demo").innerHTML = y;
</script>

</body>
</html>

var ﺯﺍ ﻩﺩﺎﻔﺘﺳﺍ ﺎﺑ ﺎﻫ ﻝﺎﺜﻣ ﻦﯾﺍ ﺭﺩ

ﺖﺧﻮﻣﺁ ﺪﯿﻫﺍﻮﺧ ﺮﺘﺸﯿﺑ var ﻩﺭﺎﺑﺭﺩ

`ﺖﭙﯾﺮﮑﺳﺍ ﺍﻭﺎﺟ ﺕﺍﺮﻈﻧ`

.ﺪﻧﻮﺷ ﯽﻤﻧ "ﺍﺮﺟﺍ" ﺖﭙﯾﺮﮑﺳﺍ ﺍﻭﺎﺟ ﺕﺍﺭﻮﺘﺳﺩ ﻪﻤﻫ

ﻞﺑﻭﺩ ﯼﺎﻫ ﺶﻠﺳﺍ ﺯﺍ ﺪﻌﺑ ﺪﮐ

ﺩﻮﺑ ﺪﻨﻫﺍﻮﺨﻧ ﻭ ﺪﻧﻮﺷ ﯽﻣ ﻪﺘﻓﺮﮔ ﻩﺪﯾﺩﺎﻧ ﺕﺍﺮﻈﻧ

let x = 5;   // I will be executed
// x = 6;   I will 
NOT be executed

→ ﺪﯿﻨﮐ ﻥﺎﺤﺘﻣﺍ ﺍﺭ ﻥﺁ ﻥﺎﺗﺩﻮﺧ

<!DOCTYPE html>
<html>
<body>

<h2>JavaScript Comments are NOT Executed</h2>

<p id="demo"></p>

<script>
let x;
x = 5;
// x = 6; I will not be executed
document.getElementById("demo").innerHTML = x;
</script>

</body>
</html>

.ﺖﺧﻮﻣﺁ ﺪﯿﻫﺍﻮﺧ ﺮﺘﺸﯿﺑ ﺕﺍﺮﻈﻧ ﻩﺭﺎﺑﺭﺩ ﺪﻌﺑ ﻞﺼﻓ ﺭﺩ

`ﺖﭙﯾﺮﮑﺳﺍ ﺍﻭﺎﺟ ﯼﺎﻫ ﻡﺎﻧ/ﺎﻫ ﻪﺳﺎﻨﺷ`

.ﺪﻨﺘﺴﻫ ﺖﭙﯾﺮﮑﺳﺍ ﺍﻭﺎﺟ ﻡﺎﻧ ﺎﻫ ﻪﺳﺎﻨﺷ

.ﺪﻧﻮﺷ ﯽﻣ ﻩﺩﺎﻔﺘﺳﺍ ﻊﺑﺍﻮﺗ ﻭ ﯼﺪﯿﻠﮐ ﺕﺎﻤﻠﮐ ﻭ ﺎﻫﺮﯿﻐﺘﻣ ﯼﺭﺍﺬﮕﻣﺎﻧ ﯼﺍﺮﺑ ﺎﻫ ﻪﺳﺎﻨﺷ

.ﺖﺳﺍ ﻥﺎﺴﮑﯾ ﯽﺴﯾﻮﻧ ﻪﻣﺎﻧﺮﺑ ﯼﺎﻫ ﻥﺎﺑﺯ ﺮﺜﮐﺍ ﺭﺩ ﯽﻧﻮﻧﺎﻗ ﯼﺎﻫ ﻡﺎﻧ ﻦﯿﻧﺍﻮﻗ

:ﺎﺑ ﺪﯾﺎﺑ ﺖﭙﯾﺮﮑﺳﺍ ﺍﻭﺎﺟ ﻡﺎﻧ

(a-z ﺎﯾ A-Z) ﻑﺮﺣ ﮏﯾ
($) ﺭﻻﺩ ﺖﻣﻼﻋ
(_) ﺮﯾﺯ ﻂﺧ ﺎﯾ

.ﺪﻨﺷﺎﺑ ﺭﻻﺩ ﺖﻣﻼﻋ ﺎﯾ ﻂﺧﺮﯾﺯ ،ﺩﺍﺪﻋﺍ ،ﻑﻭﺮﺣ ﺖﺳﺍ ﻦﮑﻤﻣ ﯼﺪﻌﺑ ﯼﺎﻫﺮﺘﮐﺍﺭﺎﮐ

`ﺪﯿﺷﺎﺑ ﻪﺘﺷﺍﺩ ﻪﺟﻮﺗ`

.ﺪﻨﺘﺴﯿﻧ ﺯﺎﺠﻣ ﺎﻫ ﻡﺎﻧ ﺭﺩ ﺮﺘﮐﺍﺭﺎﮐ ﻦﯿﻟﻭﺍ ﻥﺍﻮﻨﻋ ﻪﺑ ﺩﺍﺪﻋﺍ

.ﺪﻫﺩ ﺺﯿﺨﺸﺗ ﺩﺍﺪﻋﺍ ﺯﺍ ﺍﺭ ﺎﻫ ﻪﺳﺎﻨﺷ ﯽﺘﺣﺍﺭ ﻪﺑ ﺪﻧﺍﻮﺗ ﯽﻣ ﺖﭙﯾﺮﮑﺳﺍ ﺍﻭﺎﺟ ﺐﯿﺗﺮﺗ ﻦﯾﺍ ﻪﺑ

`ﺖﺳﺍ ﺱﺎﺴﺣ ﮏﭼﻮﮐ ﻭ ﮒﺭﺰﺑ ﻑﻭﺮﺣ ﻪﺑ ﺖﭙﯾﺮﮑﺳﺍ ﺍﻭﺎﺟ`

ﺪﻨﺘﺴﻫ ﺖﭙﯾﺮﮑﺳﺍ ﺍﻭﺎﺟ ﯼﺎﻫ ﻪﺳﺎﻨﺷ ﻪﻤﻫ

،ﯽﮔﺩﺍﻮﻧﺎﺧ ﻡﺎﻧ<"code class="w3-codespan> ﻭ lastName ﯼﺎﻫﺮﯿﻐﺘﻣ

let lastname, lastName;
lastName = "Doe";
lastname = "Peterson";

→ ﺪﯿﻨﮐ ﻥﺎﺤﺘﻣﺍ ﺍﺭ ﻥﺁ ﻥﺎﺗﺩﻮﺧ

<!DOCTYPE html>
<html>
<body>

<h2>JavaScript is Case Sensitive</h2>

<p>Try to change lastName to lastname.</p>

<p id="demo"></p>

<script>
let lastname, lastName;
lastName = "Doe";
lastname = "Peterson";
document.getElementById("demo").innerHTML = lastName;
</script>

</body>
</html>

.ﺪﻨﮐ ﯽﻤﻧ ﺮﯿﺴﻔﺗ let ﯼﺪﯿﻠﮐ ﻪﻤﻠﮐ ﻥﺍﻮﻨﻋ ﻪﺑ ﺍﺭ Let ﺎﯾ LET ﺖﭙﯾﺮﮑﺳﺍ ﺍﻭﺎﺟ

`ﺮﺘﺷ ﺩﺭﻮﻣ ﻭ ﺖﭙﯾﺮﮑﺳﺍ ﺍﻭﺎﺟ`

:ﺪﻧﺍ ﻩﺩﺮﮐ ﻩﺩﺎﻔﺘﺳﺍ ﺮﯿﻐﺘﻣ ﻡﺎﻧ ﮏﯾ ﻪﺑ ﻪﻤﻠﮐ ﺪﻨﭼ ﻕﺎﺤﻟﺍ ﯼﺍﺮﺑ ﯽﻔﻠﺘﺨﻣ ﯼﺎﻫ ﺵﻭﺭ ﺯﺍ ﻥﺎﺴﯾﻮﻧ ﻪﻣﺎﻧﺮﺑ ،ﯽﺨﯾﺭﺎﺗ ﻅﺎﺤﻟ ﺯﺍ

ﻦﻔﯿﻫ:

.ﯼﺮﻬﺷ ﻦﯿﺑ ،ﺕﺭﺎﮐ ﺮﺘﺴﻣ ،ﯽﮔﺩﺍﻮﻧﺎﺧ ﻡﺎﻧ ،ﻡﺎﻧ

.ﺪﻧﺍ ﻩﺪﺷ ﻭﺭﺯﺭ ﻖﯾﺮﻔﺗ ﯼﺍﺮﺑ ﺎﻬﻧﺁ .ﺖﺴﯿﻧ ﺯﺎﺠﻣ ﺖﭙﯾﺮﮑﺳﺍ ﺍﻭﺎﺟ ﺭﺩ ﻪﻠﺻﺎﻓ ﻂﺧ

ﻂﺧ ﺮﯾﺯ:

first_name، ﯽﮔﺩﺍﻮﻧﺎﺧ ﻡﺎﻧ، master_card، inter_city.

(ﻝﺎﮑﺳﺎﭘ ﺏﺎﻗ) ﯽﯾﻻﺎﺑ ﺮﺘﺷ ﺏﺎﻗ:

FirstName، LastName، MasterCard، InterCity.

ﻦﯿﯾﺎﭘ ﺮﺘﺷ ﻪﺒﻌﺟ:

:ﺩﻮﺷ ﯽﻣ ﻉﻭﺮﺷ ﮏﭼﻮﮐ ﻑﻭﺮﺣ ﺎﺑ ﻪﮐ ﺪﻨﻨﮐ ﻩﺩﺎﻔﺘﺳﺍ camel case ﺯﺍ ﺪﻧﺭﺍﺩ ﻞﯾﺎﻤﺗ ﺖﭙﯾﺮﮑﺳﺍ ﺍﻭﺎﺟ ﻥﺎﺴﯾﻮﻧ ﻪﻣﺎﻧﺮﺑ

firstName, lastName, mastercard, interCity.

`ﺖﭙﯾﺮﮑﺳﺍ ﺍﻭﺎﺟ ﯼﺎﻫﺮﺘﮐﺍﺭﺎﮐ ﻪﻋﻮﻤﺠﻣ`

.ﺪﻨﮐ ﯽﻣ ﻩﺩﺎﻔﺘﺳﺍ ﺪﮑﯿﻧﻮﯾ ﺮﺘﮐﺍﺭﺎﮐ ﻪﻋﻮﻤﺠﻣ ﺯﺍ ﺖﭙﯾﺮﮑﺳﺍ ﺍﻭﺎﺟ

.ﺪﻫﺩ ﯽﻣ ﺶﺷﻮﭘ ﺍﺭ ﻥﺎﻬﺟ ﯼﺎﻫﺩﺎﻤﻧ ﻭ ﯼﺭﺍﺬﮔ ﻪﻄﻘﻧ ﻢﺋﻼﻋ ،ﺎﻫﺮﺘﮐﺍﺭﺎﮐ ﻡﺎﻤﺗ (ﺎﺒﯾﺮﻘﺗ) ﺪﮑﯿﻧﻮﯾ

.ﺪﯿﻨﮐ ﻪﻌﻟﺎﻄﻣ ﺍﺭ ﺎﻣ ﺪﮑﯿﻧﻮﯾ ﻞﻣﺎﮐ ﻊﺟﺮﻣ ﺎﻔﻄﻟ ،ﺮﺗ ﻖﯿﻗﺩ ﻩﺎﮕﻧ ﯼﺍﺮﺑ