BigInt ﺖﭙﯾﺮﮑﺳﺍ ﺍﻭﺎﺟ

فهرست مطالب

.ﺩﻮﺷ ﯽﻣ ﻩﺩﺎﻔﺘﺳﺍ ﺢﯿﺤﺻ ﺩﺪﻋ ﮒﺭﺰﺑ ﺮﯾﺩﺎﻘﻣ ﻩﺮﯿﺧﺫ ﯼﺍﺮﺑ BigInt ﺖﭙﯾﺮﮑﺳﺍ ﺍﻭﺎﺟ ﯼﺎﻫﺮﯿﻐﺘﻣ

ﺖﭙﯾﺮﮑﺳﺍ ﺍﻭﺎﺟ ﺢﯿﺤﺻ ﺩﺪﻋ ﺖﻗﺩ

:ﺪﻨﺘﺴﻫ ﻖﯿﻗﺩ ﻢﻗﺭ 15 ﺎﺗ ﻂﻘﻓ ﺖﭙﯾﺮﮑﺳﺍ ﺍﻭﺎﺟ ﺢﯿﺤﺻ ﺩﺍﺪﻋﺍ

ﺢﯿﺤﺻ ﺩﺪﻋ ﺖﻗﺩ

let x = 999999999999999;
let y = 9999999999999999;

→ ﺪﯿﻨﮐ ﻥﺎﺤﺘﻣﺍ ﺍﺭ ﻥﺁ ﻥﺎﺗﺩﻮﺧ

<!DOCTYPE html>
<html>
<body>

<h1>JavaScript Numbers</h1>
<h2>Integer Precision</h2>

<p>Integers (numbers without a period or exponent notation) are accurate up to 15 digits:</p>

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

<script>
let x = 999999999999999;
let y = 9999999999999999;
document.getElementById("demo").innerHTML = x + "<br>" + y;
</script>

</body>
</html>

.ﺪﻧﻮﺷ ﯽﻣ ﻩﺮﯿﺧﺫ (IEEE 754 ﺩﺭﺍﺪﻧﺎﺘﺳﺍ) ﯽﺘﯿﺑ 64 ﺭﻭﺎﻨﺷ ﺰﯿﻤﻣ ﺐﻟﺎﻗ ﺭﺩ ﺩﺍﺪﻋﺍ ﻡﺎﻤﺗ ،ﺖﭙﯾﺮﮑﺳﺍ ﺍﻭﺎﺟ ﺭﺩ

.ﺩﻮﺷ ﯽﻣ ﺩﺮﮔ ﻭ ﺩﺍﺩ ﻥﺎﺸﻧ ﺎًﻘﯿﻗﺩ ﻥﺍﻮﺗ ﯽﻤﻧ ﺍﺭ ﮒﺭﺰﺑ ﺢﯿﺤﺻ ﺩﺪﻋ ،ﺩﺭﺍﺪﻧﺎﺘﺳﺍ ﻦﯾﺍ ﺎﺑ

:ﺪﻫﺩ ﻥﺎﺸﻧ ﺍﺭ ﺢﯿﺤﺻ ﺩﺍﺪﻋﺍ ﻦﻤﯾﺍ ﺭﻮﻃ ﻪﺑ ﺪﻧﺍﻮﺗ ﯽﻣ ﻂﻘﻓ ﺖﭙﯾﺮﮑﺳﺍ ﺍﻭﺎﺟ ،ﻞﯿﻟﺩ ﻦﯿﻤﻫ ﻪﺑ

b>9007199254740991 +(2⁵³-1)> ﺎﺗ ﺮﺜﮐﺍﺪﺣ

ﻭ

.b>-9007199254740991 -(2⁵³-1)> ﻪﺑ ﻦﯿﯾﺎﭘ

.ﺪﻨﻫﺩ ﯽﻣ ﺖﺳﺩ ﺯﺍ ﺍﺭ ﺖﻗﺩ ﻩﺩﻭﺪﺤﻣ ﻦﯾﺍ ﺯﺍ ﺝﺭﺎﺧ ﺢﯿﺤﺻ ﺮﯾﺩﺎﻘﻣ

BigInt ﺩﺎﺠﯾﺍ ﻩﻮﺤﻧ

.ﺪﯿﻨﮐ ﻪﻓﺎﺿﺍ ﯽﻧﺍﻮﺧﺍﺮﻓ ﺎﯾ ﺢﯿﺤﺻ ﺩﺪﻋ ﮏﯾ ﯼﺎﻬﺘﻧﺍ ﻪﺑ ﺍﺭ code class="w3-codespan">BigInt، n> ﮏﯾ ﺩﺎﺠﯾﺍ ﯼﺍﺮﺑ

ﺎﻫ ﻝﺎﺜﻣ

let x = 9999999999999999;
let y = 9999999999999999n;

→ ﺪﯿﻨﮐ ﻥﺎﺤﺘﻣﺍ ﺍﺭ ﻥﺁ ﻥﺎﺗﺩﻮﺧ

<!DOCTYPE html>
<html>
<body>

<h1>JavaScript Numbers</h1>
<h2>Integer and BigInt</h2>

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

<script>
let x = 9999999999999999;
let y = BigInt("9999999999999999");
document.getElementById("demo").innerHTML = x + "<br>" + y;
</script>

</body>
</html>

let x = 1234567890123456789012345n;
let y = BigInt(1234567890123456789012345)

→ ﺪﯿﻨﮐ ﻥﺎﺤﺘﻣﺍ ﺍﺭ ﻥﺁ ﻥﺎﺗﺩﻮﺧ

<!DOCTYPE html>
<html>
<body>

<h1>JavaScript Numbers</h1>
<h2>Create a BigInt</h2>

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

<script>
let x = 123456789012345678901234567890n;
let y = BigInt("123456789012345678901234567890");
document.getElementById("demo").innerHTML = x + "<br>" + y;
</script>

</body>
</html>

BigInt: ﺖﭙﯾﺮﮑﺳﺍ ﺍﻭﺎﺟ ﺪﯾﺪﺟ ﻩﺩﺍﺩ ﻉﻮﻧ ﮏﯾ

ﻉﻮﻧ a BigInt ﺖﭙﯾﺮﮑﺳﺍ ﺍﻭﺎﺟ "bigint" ﺖﺳﺍ:

ﻝﺎﺜﻣ

let x = BigInt(999999999999999);
let type = typeof x;

→ ﺪﯿﻨﮐ ﻥﺎﺤﺘﻣﺍ ﺍﺭ ﻥﺁ ﻥﺎﺗﺩﻮﺧ

<!DOCTYPE html>
<html>
<body>

<h1>JavaScript Numbers</h1>
<h2>BigInt typeof</h2>

<p>The typeof a BigInt is:</p>
<p id="demo"></p>

<script>
let x = BigInt("9999999999999999");
document.getElementById("demo").innerHTML = typeof x;
</script>

</body>
</html>

BigInt ﺖﺳﺍ ﺖﭙﯾﺮﮑﺳﺍ ﺍﻭﺎﺟ ﺭﺩ ﯼﺩﺪﻋ ﻩﺩﺍﺩ ﻉﻮﻧ ﻦﯿﻣﻭﺩ

:ﺖﺳﺍ 8 ﺖﭙﯾﺮﮑﺳﺍ ﺍﻭﺎﺟ ﺭﺩ ﻩﺪﺷ ﯽﻧﺎﺒﯿﺘﺸﭘ ﯼﺎﻫ ﻩﺩﺍﺩ ﻉﺍﻮﻧﺍ ﻞﮐ ﺩﺍﺪﻌﺗ BigInt ﺎﺑ

ﻪﺘﺷﺭ .1

BigInt ﯼﺎﻫﺭﻮﺗﺍﺮﭘﺍ

ﺪﻧﻮﺷ ﻩﺩﺎﻔﺘﺳﺍ ﻩﺭﺎﻤﺷ<"code class="w3-codespan> ﺖﭙﯾﺮﮑﺳﺍ ﺍﻭﺎﺟ ﺭﺩ ﺪﻨﻧﺍﻮﺗ ﯽﻣ ﻪﮐ ﯽﯾﺎﻫﺭﻮﺗﺍﺮﭘﺍ

`BigInt ﺏﺮﺿ ﻝﺎﺜﻣ`

let x = 9007199254740995n;
let y = 9007199254740995n;
let z = x * y;

→ ﺪﯿﻨﮐ ﻥﺎﺤﺘﻣﺍ ﺍﺭ ﻥﺁ ﻥﺎﺗﺩﻮﺧ

<!DOCTYPE html>
<html>
<body>

<h1>JavScript Bigint</h1>
<h2>BigInt Multiply</h2>
<p>Operators that can be used a Number can be used on a BigInt.</p>
<p id="demo"></p>

<script>
let x = 9007199254740995n;
let y = 9007199254740995n;
let z = x * y;

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

</body>
</html>

`ﺖﺷﺍﺩﺩﺎﯾ`

BigInt ﻦﯿﺑ ﺏﺎﺴﺣ

ﺩﺍﺩ ﻡﺎﺠﻧﺍ BigInt ﺭﺩ ﻥﺍﻮﺗ ﯽﻤﻧ ﺍﺭ (<<<) ﺖﺳﺍﺭ ﻪﺑ ﺎﻀﻣﺍ ﻥﻭﺪﺑ ﺮﯿﯿﻐﺗ

`BigInt ﺭﺎﺸﻋﺍ`

.ﺪﺷﺎﺑ ﺭﺎﺸﻋﺍ ﯼﺍﺭﺍﺩ ﺪﻧﺍﻮﺗ ﯽﻤﻧ BigInt ﮏﯾ

`BigInt Division ﻝﺎﺜﻣ`

let x = 5n;
let y = x / 2;
// Error: Cannot mix BigInt and other types, use explicit conversion.

let x = 5n;
let y = Number(x) / 2;

→ ﺪﯿﻨﮐ ﻥﺎﺤﺘﻣﺍ ﻥﺎﺗﺩﻮﺧ

<!DOCTYPE html>
<html>
<body>

<h1>JavScript Bigint</h1>
<h2>BigInt Divide</h2>

<p>A BigInt can not have decimals.</p>
<p>Cannot mix BigInt and other types, use explicit conversions.</p>
<p id="demo"></p>

<script>
let x = 5n;
let y = Number(x) / 2;

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

</body>
</html>

`BigInt Hex، Octal ﻭ Binary`

BigInt ﯽﻣ ﻦﯿﻨﭽﻤﻫﺖﺸﻫ ،ﻝﺎﻤﯿﺳﺩﺍﺰﮕﻫ ﺕﺭﻮﺻ ﻪﺑ ﺪﻧﺍﻮﺗﺩﻮﺷ ﻪﺘﺷﻮﻧ ﯼﺮﻨﯾﺎﺑ ﺎﯾ ﻪﻧﺎﮔ:

`BigInt Hex ﻝﺎﺜﻣ`

let hex = 0x20000000000003n;
let oct = 0o400000000000000003n;
let bin = 0b100000000000000000000000000000000000000000000000000011n;

→ ﺪﯿﻨﮐ ﻥﺎﺤﺘﻣﺍ ﻥﺎﺗﺩﻮﺧ

<!DOCTYPE html>
<html>
<body>

<h1>JavScript Bigint</h1>
<h2>Hex, Octal and Binary</h2>

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


<script>
let hex = 0x20000000000003n;
let oct = 0o400000000000000003n;
let bin = 0b100000000000000000000000000000000000000000000000000011n;

document.getElementById("demo").innerHTML = hex + "<br>" + oct + "<br>" + bin; 
</script>

</body>
</html>

`ﻖﯿﻗﺩ ﯼﻭﺎﮑﺠﻨﮐ`

:ﺩﺯﺍﺪﻨﯿﺑ ﺮﻄﺧ ﻪﺑ ﺍﺭ ﻪﻣﺎﻧﺮﺑ ﺖﯿﻨﻣﺍ ﺪﻧﺍﻮﺗ ﯽﻣ ﻥﺩﺮﮐ ﺩﺮﮔ

`MAX_SAFE_INTEGER ﻝﺎﺜﻣ`

9007199254740992 === 9007199254740993; // is true !!!

→ ﺪﯿﻨﮐ ﻥﺎﺤﺘﻣﺍ ﻥﺎﺗﺩﻮﺧ

<!DOCTYPE html>
<html>
<body>

<h1>JavScript Numbers</h1>
<h2>Integer Precision</h2>

<p>Is 9007199254740992 equal to 9007199254740993?</p>

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


<script>
let x = 9007199254740992 === 9007199254740993;
document.getElementById("demo").innerHTML = x;
</script>

</body>
</html>

`ﺮﮔﺭﻭﺮﻣ ﯽﻧﺎﺒﯿﺘﺸﭘ`

BigInt ﯽﻣ ﯽﻧﺎﺒﯿﺘﺸﭘ ﺎﻫﺮﮔﺭﻭﺮﻣ ﻪﻤﻫ ﺭﺩ 2020 ﺮﺒﻣﺎﺘﭙﺳ ﺯﺍﺩﻮﺷ:


Chrome 67	Edge 79	Firefox 68	Safari 14	Opera 54
May 2018	Jan 2020	Jul 2019	Sep 2020	Jun 2018

`ﻦﻤﯾﺍ ﺢﯿﺤﺻ ﺩﺍﺪﻋﺍ ﺮﺜﮐﺍﺪﺣ ﻭ ﻞﻗﺍﺪﺣ`

ES6 ﯼﺎﻫ ﯽﮔﮋﯾﻭ max ﻭ min ﯽﺷ ﻪﺑ ﺍﺭ Number ﺩﺮﮐ ﻪﻓﺎﺿﺍ:

MAX_SAFE_INTEGER
MIN_SAFE_INTEGER

`MAX_SAFE_INTEGER ﻝﺎﺜﻣ`

let x = Number.MAX_SAFE_INTEGER;

→ ﺪﯿﻨﮐ ﻥﺎﺤﺘﻣﺍ ﻥﺎﺗﺩﻮﺧ

<!DOCTYPE html>
<html>
<body>

<h2>Number Object Properties</h2>

<p>MAX_SAFE_INTEGER</p>

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

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

</body>
</html>

`MIN_SAFE_INTEGER ﻝﺎﺜﻣ`

let x = Number.MIN_SAFE_INTEGER;

→ ﺪﯿﻨﮐ ﻥﺎﺤﺘﻣﺍ ﺍﺭ ﻥﺁ ﻥﺎﺗﺩﻮﺧ

<!DOCTYPE html>
<html>
<body>

<h2>Number Object Properties</h2>

<p>MIN_SAFE_INTEGER</p>

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

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

</body>
</html>

`ﺩﺍﺪﻋﺍ ﺪﯾﺪﺟ ﯼﺎﻫ ﺵﻭﺭ`

ES6 ﯽﺷ ﻪﺑ ﺍﺭ ﺪﯾﺪﺟ ﺵﻭﺭ 2 ﻦﯿﻨﭽﻤﻫ Number ﺩﺮﮐ ﻪﻓﺎﺿﺍ:

Number.isInteger()
Number.isSafeInteger()

`()Number.isInteger ﺵﻭﺭ`

.ﺪﻧﺍﺩﺮﮔﯽﻣﺮﺑ ﺍﺭ Number.isInteger() true ﺵﻭﺭ ،ﺪﺷ

`()isInteger :ﻝﺎﺜﻣ`

Number.isInteger(10);
Number.isInteger(10.5);

→ ﺪﯿﻨﮐ ﻥﺎﺤﺘﻣﺍ ﻥﺎﺗﺩﻮﺧ

<!DOCTYPE html>
<html>
<body>

<h1>JavaScript Numbers</h1>
<h2>The isInteger() Method</h2>

<p>The isInteger() method returns true if the argument is an integer.</p>
<p>Otherwise it returns false.</p>

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

<script>
document.getElementById("demo").innerHTML =
Number.isInteger(10) + "<br>" + Number.isInteger(10.5);
</script>

</body>
</html>

`Number.isSafeInteger() ﺵﻭﺭ`

.ﺩﻮﺷ ﻩﺩﺍﺩ ﺶﯾﺎﻤﻧ ﺮﺑﺍﺮﺑ ﻭﺩ ﻖﯿﻗﺩ ﺩﺪﻋ ﮏﯾ ﻥﺍﻮﻨﻋ ﻪﺑ ﺪﻧﺍﻮﺗ ﯽﻣ ﺎﻘﯿﻗﺩ ﻪﮐ ﺖﺳﺍ ﺢﯿﺤﺻ ﺩﺪﻋ ﮏﯾ ﻦﻤﯾﺍ ﺢﯿﺤﺻ ﺩﺪﻋ ﮏﯾ

.ﺪﻧﺍﺩﺮﮔﯽﻣﺮﺑ ﺍﺭ Number.isSafeInteger() true ﺵﻭﺭ

`()isSafeInteger ﻝﺎﺜﻣ`

Number.isSafeInteger(10);
Number.isSafeInteger(12345678901234567890);

→ ﺪﯿﻨﮐ ﻥﺎﺤﺘﻣﺍ ﻥﺎﺗﺩﻮﺧ

<!DOCTYPE html>
<html>
<body>

<h1>JavaScript Numbers</h1>
<h2>The isSafeInteger() Method</h2>

<p>The isSafeInteger() method returns true if the argument is a safe integer.</p>
<p>Otherwise it returns false.</p>

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

<script>
document.getElementById("demo").innerHTML =
Number.isSafeInteger(10) + "<br>" + Number.isSafeInteger(12345678901234567890);
</script>

</body>
</html>

.ﺪﻨﺘﺴﻫ (sup>53 - 1>2)+ ﺎﺗ (sup>53 - 1>2)- ﺯﺍ ﺢﯿﺤﺻ ﺩﺍﺪﻋﺍ ﻪﻤﻫ ﻦﻣﺍ ﺢﯿﺤﺻ ﺩﺍﺪﻋﺍ


  
    
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