.ﺪﻨﻨﮐ ﺍﺮﺟﺍ ﺭﺎﺑ ﻦﯾﺪﻨﭼ ﺍﺭ ﺪﮐ ﮎﻮﻠﺑ ﮏﯾ ﺪﻨﻧﺍﻮﺗ ﯽﻣ ﺎﻫ ﻪﻘﻠﺣ
ﻡﺍﺪﮐ ﺮﻫ ،ﺪﯿﻨﮐ ﺍﺮﺟﺍ ﺎﻫﺭﺎﺑ ﻭ ﺎﻫﺭﺎﺑ ﺍﺭ ﺪﮐ ﻥﺎﻤﻫ ﺪﯿﻫﺍﻮﺧ ﯽﻣ ﺮﮔﺍ ،ﺪﻨﺘﺴﻫ ﺪﯿﻔﻣ ﺎﻫ ﻪﻘﻠﺣ
:ﺪﻫﺩ ﯽﻣ ﺥﺭ ﺎﻫ ﻪﯾﺍﺭﺁ ﺎﺑ ﺭﺎﮐ ﻡﺎﮕﻨﻫ ﺭﺩ ﺩﺭﻮﻣ ﻦﯾﺍ ﺐﻠﻏﺍ
text += cars[0] + "<br>";
text += cars[1] + "<br>";
text += cars[2] + "<br>";
text += cars[3] + "<br>";
text += cars[4] + "<br>";
text += cars[5] + "<br>";for (let i = 0; i < cars.length; i++) {
text += cars[i] + "<br>";
}→ ﺪﯿﻨﮐ ﻥﺎﺤﺘﻣﺍ ﺍﺭ ﻥﺁ ﻥﺎﺗﺩﻮﺧ
<!DOCTYPE html>
<html>
<body>
<h2>JavaScript For Loop</h2>
<p id="demo"></p>
<script>
const cars = ["BMW", "Volvo", "Saab", "Ford", "Fiat", "Audi"];
let text = "";
for (let i = 0; i < cars.length; i++) {
text += cars[i] + "<br>";
}
document.getElementById("demo").innerHTML = text;
</script>
</body>
</html>
:ﺪﻨﮐ ﯽﻣ ﯽﻧﺎﺒﯿﺘﺸﭘ ﺍﺭ ﺎﻫ ﻪﻘﻠﺣ ﺯﺍ ﯽﻔﻠﺘﺨﻣ ﻉﺍﻮﻧﺍ ﺖﭙﯾﺮﮑﺳﺍ ﺍﻭﺎﺟ
ﯼﺍﺮﺑ - ﺩﻮﺷ ﯽﻣ ﻪﻘﻠﺣ ﺪﮐ ﮎﻮﻠﺑ ﮏﯾ ﻖﯾﺮﻃ ﺯﺍ ﺭﺎﺑ ﻦﯾﺪﻨﭼ
for/in - ﺪﻧﺯ ﯽﻣ ﻪﻘﻠﺣ ءﯽﺷ ﮏﯾ ﺕﺎﯿﺻﻮﺼﺧ ﻖﯾﺮﻃ ﺯﺍ
for/of - ﺪﻨﮐ ﯽﻣ ﺭﻮﺒﻋ ﻪﻘﻠﺣ ﮏﯾ ﺮﯾﺩﺎﻘﻣ ﻥﺎﯿﻣ ﺯﺍ
ﻪﮐ ﯽﻟﺎﺣ ﺭﺩ - ﺖﺳﺍ ﺖﺳﺭﺩ ﻩﺪﺷ ﺺﺨﺸﻣ ﻁﺮﺷ ﮏﯾ ﻪﮐ ﯽﻟﺎﺣ ﺭﺩ ﺪﻧﺯ
do/while - ﺩﻮﺷ ﯽﻣ ﻪﻘﻠﺣ ﺪﮐ ﮎﻮﻠﺑ ﮏﯾ ﻖﯾﺮﻃ ﺯﺍ ،ﺖﺳﺍ ﺖﺳﺭﺩ
for ﻪﻘﻠﺣ :ﺪﻨﮐ ﯽﻣ ﺩﺎﺠﯾﺍ ﯼﺭﺎﯿﺘﺧﺍ ﺕﺭﺎﺒﻋ 3 ﺎﺑ ﻪﻘﻠﺣ ﮏﯾ for ﺭﻮﺘﺳﺩ
for (expression 1; expression 2; expression 3) {
// code block to be executed
}1 ﺕﺭﺎﺒﻋ ﺩﻮﺷ ﯽﻣ ﺍﺮﺟﺍ (ﺭﺎﺑ ﮏﯾ) ﺪﮐ ﮎﻮﻠﺑ ﯼﺍﺮﺟﺍ ﺯﺍ ﻞﺒﻗ.
2 ﺕﺭﺎﺒﻋ ﺪﻨﮐ ﯽﻣ ﻒﯾﺮﻌﺗ ﺍﺭ ﺪﮐ ﮎﻮﻠﺑ ﯼﺍﺮﺟﺍ ﻂﯾﺍﺮﺷ.
3 ﺕﺭﺎﺒﻋ (ﺭﺎﺑ ﺮﻫ) ﺩﻮﺷ ﯽﻣ ﺍﺮﺟﺍ ﺪﮐ ﮎﻮﻠﺑ ﯼﺍﺮﺟﺍ ﺯﺍ ﺲﭘ.
for (let i = 0; i < 5; i++) {
text += "The number is " + i + "<br>";
}
→ ﺪﯿﻨﮐ ﻥﺎﺤﺘﻣﺍ ﺍﺭ ﻥﺁ ﻥﺎﺗﺩﻮﺧ
<!DOCTYPE html>
<html>
<body>
<h2>JavaScript For Loop</h2>
<p id="demo"></p>
<script>
let text = "";
for (let i = 0; i < 5; i++) {
text += "The number is " + i + "<br>";
}
document.getElementById("demo").innerHTML = text;
</script>
</body>
</html>
:ﺪﯿﻧﺍﻮﺨﺑ ﺪﯿﻧﺍﻮﺗ ﯽﻣ ﻻﺎﺑ ﻝﺎﺜﻣ ﺯﺍ
.(i=0 ﺪﯾﺭﺍﺬﮕﺑ) ﺪﻨﮐ ﯽﻣ ﻢﯿﻈﻨﺗ ﻪﻘﻠﺣ ﻉﻭﺮﺷ ﺯﺍ ﻞﺒﻗ ﺍﺭ ﺮﯿﻐﺘﻣ ﮏﯾ 1 ﺕﺭﺎﺒﻋ
ﺯﺍ ﺮﺘﻤﮐ ﺪﯾﺎﺑ i) ﺪﻨﮐ ﯽﻣ ﻒﯾﺮﻌﺗ ﻪﻘﻠﺣ ﯼﺍﺮﺟﺍ ﯼﺍﺮﺑ ﺍﺭ ﯽﻄﯾﺍﺮﺷ 2 ﺕﺭﺎﺒﻋ
ﺪﻫﺩ ﯽﻣ ﺶﯾﺍﺰﻓﺍ ﺍﺭ (++i) ﺭﺍﺪﻘﻣ ﺪﺷﺎﺑ ﻪﺘﺷﺍﺩ ﻪﻘﻠﺣ ﺭﺩ ﺪﮐ ﮎﻮﻠﺑ ﻪﮐ ﺭﺎﺑ ﺮﻫ 3 ﺕﺭﺎﺒﻋ
.(i=0 ﺪﯾﺭﺍﺬﮕﺑ) ﺪﯿﻨﮐ ﯽﻣ ﻩﺩﺎﻔﺘﺳﺍ ﻪﻘﻠﺣ ﺭﺩ ﻩﺩﺎﻔﺘﺳﺍ ﺩﺭﻮﻣ ﺮﯿﻐﺘﻣ ﻪﯿﻟﻭﺍ ﯽﻫﺩﺭﺍﺪﻘﻣ ﯼﺍﺮﺑ 1 ﺕﺭﺎ
ﺖﺳﺍ 1 ﺕﺭﺎﺒﻋ .ﺪﻫﺩ ﯽﻤﻧ ﯽﺘﯿﻤﻫﺍ ﺖﭙﯾﺮﮑﺳﺍ ﺍﻭﺎﺟ .ﺖﺴﯿﻧ ﺭﻮﻄﻨﯾﺍ ﻪﺸﯿﻤﻫ
:ﺪﯿﻨﮐ ﻉﻭﺮﺷ (ﺪﯿﻨﮐ ﺍﺪﺟ ﻢﻫ ﺯﺍ ﺎﻣﺎﮐ ﺎﺑ) 1 ﺕﺭﺎﺒﻋ ﺭﺩ ﺍﺭ ﯼﺩﺎﯾﺯ ﺮﯾﺩﺎﻘﻣ ﺪﯿﻧﺍﻮﺗ ﯽﻣ
for (let i = 0, len = cars.length, text = ""; i < len; i++) {
text += cars[i] + "<br>";
}→ ﺪﯿﻨﮐ ﻥﺎﺤﺘﻣﺍ ﺍﺭ ﻥﺁ ﻥﺎﺗﺩﻮﺧ
<!DOCTYPE html>
<html>
<body>
<h2>JavaScript For Loop</h2>
<p id="demo"></p>
<script>
const cars = ["BMW", "Volvo", "Saab", "Ford"];
let i, len, text;
for (i = 0, len = cars.length, text = ""; i < len; i++) {
text += cars[i] + "<br>";
}
document.getElementById("demo").innerHTML = text;
</script>
</body>
</html>
ﺪﻧﺍ ﻩﺪﺷ ﻢﯿﻈﻨﺗ ﺎﻤﺷ ﺮﯾﺩﺎﻘﻣ ﻪﮐ ﯽﻧﺎﻣﺯ ﻞﺜﻣ) ﺪﯿﻨﮐ ﻑﺬﺣ ﺍﺭ 1 ﺕﺭﺎﺒﻋ ﺪﯿﻧﺍﻮﺗ ﯽﻣ ﻭ
let i = 2;
let len = cars.length;
let text = "";
for (; i < len; i++) {
text += cars[i] + "<br>";
}→ ﺪﯿﻨﮐ ﻥﺎﺤﺘﻣﺍ ﺍﺭ ﻥﺁ ﻥﺎﺗﺩﻮﺧ
<!DOCTYPE html>
<html>
<body>
<h2>JavaScript For Loop</h2>
<p id="demo"></p>
<script>
const cars = ["BMW", "Volvo", "Saab", "Ford"];
let i = 2;
let len = cars.length;
let text = "";
for (; i < len; i++) {
text += cars[i] + "<br>";
}
document.getElementById("demo").innerHTML = text;
</script>
</body>
</html>
.ﺩﻮﺷ ﯽﻣ ﻩﺩﺎﻔﺘﺳﺍ ﻪﯿﻟﻭﺍ ﺮﯿﻐﺘﻣ ﻂﯾﺍﺮﺷ ﯽﺑﺎﯾﺯﺭﺍ ﯼﺍﺮﺑ 2 ﺕﺭﺎﺒﻋ ﺯﺍ ﺐﻠﻏﺍ
ﺖﺳﺍ 2 ﺕﺭﺎﺒﻋ .ﺪﻫﺩ ﯽﻤﻧ ﯽﺘﯿﻤﻫﺍ ﺖﭙﯾﺮﮑﺳﺍ ﺍﻭﺎﺟ .ﺖﺴﯿﻧ ﺭﻮﻄﻨﯾﺍ ﻪﺸﯿﻤﻫ
،ﺪﻧﺍﺩﺮﮔﺮﺑ false ﺮﮔﺍ .ﺩﻮﺷ ﯽﻣ ﻉﻭﺮﺷ ﻩﺭﺎﺑﻭﺩ ﻪﻘﻠﺣ ،ﺪﻧﺍﺩﺮﮔﺮﺑ ﺍﺭ true ۲ ﺕﺭﺎﺒﻋ ﺮﮔﺍ
ﺪﯿﻫﺩ ﻪﺋﺍﺭﺍ ﻥﺁ ﻞﺧﺍﺩ ﺭﺩ break ﮏﯾ ﺪﯾﺎﺑ ،ﺪﯿﻨﮐ ﻑﺬﺣ ﺍﺭ 2 ﺕﺭﺎﺒﻋ ﺮﮔﺍ
.ﺪﻫﺩ ﯽﻣ ﺶﯾﺍﺰﻓﺍ ﺍﺭ ﻪﯿﻟﻭﺍ ﺮﯿﻐﺘﻣ ﺭﺍﺪﻘﻣ 3 ﺕﺭﺎﺒﻋ ﺐﻠﻏﺍ
ﺖﺳﺍ 3 ﺕﺭﺎﺒﻋ .ﺪﻫﺩ ﯽﻤﻧ ﯽﺘﯿﻤﻫﺍ ﺖﭙﯾﺮﮑﺳﺍ ﺍﻭﺎﺟ .ﺖﺴﯿﻧ ﺭﻮﻄﻨﯾﺍ ﻪﺸﯿﻤﻫ
ﺪﻫﺩ ﻡﺎﺠﻧﺍ ﺍﺭ ﺖﺒﺜﻣ ،(--i) ﯽﻔﻨﻣ ﺶﯾﺍﺰﻓﺍ ﺪﻨﻧﺎﻣ ﯼﺭﺎﮐ ﺮﻫ ﺪﻧﺍﻮﺗ ﯽﻣ 3 ﺕﺭﺎﺒﻋ
:(ﺪﯿﻫﺩ ﯽﻣ ﺶﯾﺍﺰﻓﺍ ﻪﻘﻠﺣ ﻞﺧﺍﺩ ﺭﺩ ﺍﺭ ﺩﻮﺧ ﺮﯾﺩﺎﻘﻣ ﻪﮐ ﯽﻧﺎﻣﺯ ﺪﻨﻧﺎﻣ) ﺩﺮﮐ ﻑﺬﺣ ﻥﺍﻮﺗ ﯽﻣ ﺰﯿﻧ ﺍﺭ 3
let i = 0;
let len = cars.length;
let text = "";
for (; i < len; ) {
text += cars[i] + "<br>";
i++;
}→ ﺪﯿﻨﮐ ﻥﺎﺤﺘﻣﺍ ﺍﺭ ﻥﺁ ﻥﺎﺗﺩﻮﺧ
<!DOCTYPE html>
<html>
<body>
<h2>JavaScript For Loop</h2>
<p id="demo"></p>
<script>
const cars = ["BMW", "Volvo", "Saab", "Ford"];
let i = 0;
let len = cars.length;
let text = "";
for (; i < len; ) {
text += cars[i] + "<br>";
i++;
}
document.getElementById("demo").innerHTML = text;
</script>
</body>
</html>
:ﻪﻘﻠﺣ ﮏﯾ ﺭﺩ var ﺯﺍ ﻩﺩﺎﻔﺘﺳﺍ
var i = 5;
for (var i = 0; i < 10; i++) {
// some code
}
// Here i is 10→ ﺪﯿﻨﮐ ﻥﺎﺤﺘﻣﺍ ﺍﺭ ﻥﺁ ﻥﺎﺗﺩﻮﺧ
<!DOCTYPE html>
<html>
<body>
<h2>JavaScript let</h2>
<p id="demo"></p>
<script>
var i = 5;
for (var i = 0; i < 10; i++) {
// some statements
}
document.getElementById("demo").innerHTML = i;
</script>
</body>
</html>
:ﻪﻘﻠﺣ ﮏﯾ ﺭﺩ let ﺯﺍ ﻩﺩﺎﻔﺘﺳﺍ
let i = 5;
for (let i = 0; i < 10; i++) {
// some code
}
// Here i is 5→ ﺪﯿﻨﮐ ﻥﺎﺤﺘﻣﺍ ﺍﺭ ﻥﺁ ﻥﺎﺗﺩﻮﺧ
<!DOCTYPE html>
<html>
<body>
<h2>JavaScript let</h2>
<p id="demo"></p>
<script>
let i = 5;
for (let i = 0; i < 10; i++) {
// some statements
}
document.getElementById("demo").innerHTML = i;
</script>
</body>
</html>
ﺭﺩ ﻩﺪﺷ ﻡﻼﻋﺍ ﺮﯿﻐﺘﻣ ،var ﺯﺍ ﻩﺩﺎﻔﺘﺳﺍ ﺎﺑ ،ﻝﻭﺍ ﻝﺎﺜﻣ ﺭﺩ
ﺭﺩ ﻩﺪﺷ ﻡﻼﻋﺍ ﺮﯿﻐﺘﻣ ،let ﺯﺍ ﻩﺩﺎﻔﺘﺳﺍ ﺎﺑ ،ﻡﻭﺩ ﻝﺎﺜﻣ ﺭﺩ
i ،ﺩﻮﺷ ﯽﻣ ﻩﺩﺎﻔﺘﺳﺍ ﻪﻘﻠﺣ ﮏﯾ ﺭﺩ i ﺮﯿﻐﺘﻣ ﻡﻼﻋﺍ ﯼﺍﺮﺑ let ﻪ
For/In ﻭ For/Of ﯼﺎﻫﻪﻘﻠﺣ.ﺖﺳﺍ ﻩﺪﺷ ﻩﺩﺍﺩ ﺢﯿﺿﻮﺗ ﯼﺪﻌﺑ ﻞﺼﻓ ﺭﺩ .ﺖﺳﺍ ﻩﺪﺷ ﻩﺩﺍﺩ ﺢﯿﺿﻮﺗ ﯼﺪﻌﺑ ﯼﺎﻫ ﻞﺼﻓ ﺭﺩ for/of ﻪﻘﻠﺣ ﻭ ﻪﮐ ﯽﻟﺎﺣ ﺭﺩ ﺩﻮﺷ ﯽﻣ ﻪﻘﻠﺣdo/while ﻭ