{"id":92261,"date":"2022-10-12T21:43:39","date_gmt":"2022-10-13T02:43:39","guid":{"rendered":"https:\/\/blogging-techies.com\/sw\/19-javascript-matematikmetoder-du-bor-beharska-idag\/"},"modified":"2022-10-12T21:43:39","modified_gmt":"2022-10-13T02:43:39","slug":"19-javascript-matematikmetoder-du-bor-beharska-idag","status":"publish","type":"post","link":"https:\/\/blogging-techies.com\/sw\/19-javascript-matematikmetoder-du-bor-beharska-idag\/","title":{"rendered":"19 JavaScript-matematikmetoder du b\u00f6r beh\u00e4rska idag"},"content":{"rendered":"
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Matematik spelar en integrerad del i datavetenskap och kodning. Programmerare anv\u00e4nder matematiska metoder och uttryck f\u00f6r att utf\u00f6ra ber\u00e4kningar av alla m\u00f6jliga olika anledningar under utvecklingen. Lyckligtvis tillhandah\u00e5ller JavaScript olika inbyggda metoder som kan g\u00f6ra ditt liv mycket enklare.<\/p>\n

I den h\u00e4r artikeln kommer du att l\u00e4ra dig om 19 JavaScript Math-metoder som du b\u00f6r beh\u00e4rska idag.<\/p>\n

<\/span> 1. Math.abs()<\/span><\/h2>\n

De magmuskler()<\/strong> metod returnerar det absoluta v\u00e4rdet av ett tal.<\/p>\n

let num1 = 32;let num2 = -13;let num3 = -345;let num4 = 4.76;let num5 = 0;console.log(Math.abs(num1));console.log(Math.abs(num2));console.log(Math.abs(num3));console.log(Math.abs(num4));console.log(Math.abs(num5));<\/pre>\n
Produktion<\/strong>:<\/p>\n
32133454.760<\/pre>\n
<\/span>  2. Math.cbrt()<\/span><\/h2>\n
De cbrt()<\/strong> metod returnerar kubroten av ett tal.<\/p>\n
let num1 = 64;let num2 = 125;let num3 = -1;let num4 = Infinity;let num5 = 0;console.log(Math.cbrt(num1));console.log(Math.cbrt(num2));console.log(Math.cbrt(num3));console.log(Math.cbrt(num4));console.log(Math.cbrt(num5));<\/pre>\n
Produktion<\/strong>:<\/p>\n
45-1Infinity0<\/pre>\n
<\/span>  3. Math.ceil()<\/span><\/h2>\n
De tak() <\/strong>metod returnerar n\u00e4sta heltal st\u00f6rre \u00e4n eller lika med ett givet tal.<\/p>\n
let num1 = 34.5;let num2 = 54.234;let num3 = 7.0001;let num4 = 867.1;let num5 = 0;console.log(Math.ceil(num1));console.log(Math.ceil(num2));console.log(Math.ceil(num3));console.log(Math.ceil(num4));console.log(Math.ceil(num5));<\/pre>\n
Produktion<\/strong>:<\/p>\n
355588680<\/pre>\n
<\/span>  4. Math.cos()<\/span><\/h2>\n
De cos()<\/strong> metod returnerar cosinus f\u00f6r den angivna vinkeln Den givna vinkeln m\u00e5ste anges i radianer.<\/p>\n
let num1 = 0;let num2 = 1;let num3 = Math.PI;let num4 = 0.5;let num5 = 45;console.log(Math.cos(num1));console.log(Math.cos(num2));console.log(Math.cos(num3));console.log(Math.cos(num4));console.log(Math.cos(num5));<\/pre>\n
Produktion<\/strong>:<\/p>\n
10.5403023058681398-10.87758256189037280.5253219888177297<\/pre>\n
<\/span>  5. Math.cosh()<\/span><\/h2>\n
De cosh() <\/strong>metod returnerar hyperbolisk cosinus f\u00f6r ett tal.<\/p>\n
let num1 = 0;let num2 = 1;let num3 = -1;let num4 = 2;let num5 = -2;console.log(Math.cosh(num1));console.log(Math.cosh(num2));console.log(Math.cosh(num3));console.log(Math.cosh(num4));console.log(Math.cosh(num5));<\/pre>\n
Produktion<\/strong>:<\/p>\n
11.54308063481524371.54308063481524373.76219569108363143.7621956910836314<\/pre>\n
<\/span>  6. Math.exp(x)<\/span><\/h2>\n
De exp(x) <\/strong>metod returnerar e^x, d\u00e4r x<\/strong> \u00e4r argumentet, och e<\/strong> \u00e4r Eulers tal (\u00e4ven k\u00e4nt som Napiers konstant), basen f\u00f6r de naturliga logaritmerna.<\/p>\n
let num1 = 0;let num2 = 1;let num3 = -1;let num4 = 2;let num5 = -2;console.log(Math.exp(num1));console.log(Math.exp(num2));console.log(Math.exp(num3));console.log(Math.exp(num4));console.log(Math.exp(num5));<\/pre>\n
Produktion<\/strong>:<\/p>\n
12.7182818284590450.367879441171442337.389056098930650.1353352832366127<\/pre>\n
<\/span>  7. Math.floor()<\/span><\/h2>\n
De golv()<\/strong> metod returnerar n\u00e4sta heltal mindre \u00e4n eller lika med ett givet tal.<\/p>\n
let num1 = 34.5;let num2 = 54.234;let num3 = 7.0001;let num4 = 867.1;let num5 = 0;console.log(Math.floor(num1));console.log(Math.floor(num2));console.log(Math.floor(num3));console.log(Math.floor(num4));console.log(Math.floor(num5));<\/pre>\n
Produktion<\/strong>:<\/p>\n
345478670<\/pre>\n
<\/span>  8. Math.log()<\/span><\/h2>\n
De logga() <\/strong>metod returnerar den naturliga logaritmen (bas e) f\u00f6r ett tal.<\/p>\n
let num1 = 0;let num2 = 1;let num3 = -1;let num4 = 10;let num5 = -2;console.log(Math.log(num1));console.log(Math.log(num2));console.log(Math.log(num3));console.log(Math.log(num4));console.log(Math.log(num5));<\/pre>\n
Produktion<\/strong>:<\/p>\n
-Infinity0NaN2.302585092994046NaN<\/pre>\n
<\/span>  9. Math.max(x, y, \u2026)<\/span><\/h2>\n
De max()<\/strong> metod returnerar det h\u00f6gsta v\u00e4rdet fr\u00e5n en lista med siffror.<\/p>\n
let list1 = [24, 645, 678, Infinity];let list2 = [75, 12, 92, 8];let list3 = [2947, -435, -123, 0, -Infinity];console.log(Math.max(...list1));console.log(Math.max(...list2));console.log(Math.max(...list3));console.log(Math.max(1, 2, 3));console.log(Math.max(234, 46, -23));<\/pre>\n
Produktion<\/strong>:<\/p>\n
Infinity9229473234<\/pre>\n
<\/span>  10. Math.min(x, y, \u2026)<\/span><\/h2>\n
De min()<\/strong> metod returnerar det l\u00e4gsta v\u00e4rdet fr\u00e5n en lista med tal.<\/p>\n
let list1 = [24, 645, 678, Infinity];let list2 = [75, 12, 92, 8];let list3 = [2947, -435, -123, 0, -Infinity];console.log(Math.min(...list1));console.log(Math.min(...list2));console.log(Math.min(...list3));console.log(Math.min(1, 2, 3));console.log(Math.min(234, 46, -23));<\/pre>\n
Produktion<\/strong>:<\/p>\n
248-Infinity1-23<\/pre>\n
<\/span>  11. Math.pow(x, y)<\/span><\/h2>\n
De pow(x, y)<\/strong> metod returnerar basen till exponentpotensen (x^y).<\/p>\n
console.log(Math.pow(1, 10));console.log(Math.pow(2, 4));console.log(Math.pow(1, Infinity));console.log(Math.pow(10, 10));console.log(Math.pow(-1, 3));<\/pre>\n
Produktion<\/strong>:<\/p>\n
116NaN10000000000-1<\/pre>\n
<\/span>  12. Math.random()<\/span><\/h2>\n
De slumpm\u00e4ssig()<\/strong> metoden returnerar ett slumptal mellan 0 och 1 (inklusive 0, men inte 1).<\/p>\n
console.log(Math.random());console.log(Math.random());console.log(Math.random());console.log(Math.random());console.log(Math.random());<\/pre>\n
Produktion<\/strong>:<\/p>\n
0.008825924668635520.119030115174533660.96891282693842350.84628632610134420.4431704664004701<\/pre>\n
<\/span>  13. Math.round()<\/span><\/h2>\n
De runda()<\/strong> metod returnerar v\u00e4rdet av ett tal avrundat till n\u00e4rmaste heltal.<\/p>\n
let num1 = 34.5;let num2 = 54.234;let num3 = 7.0001;let num4 = 867.1;let num5 = 0;console.log(Math.round(num1));console.log(Math.round(num2));console.log(Math.round(num3));console.log(Math.round(num4));console.log(Math.round(num5));<\/pre>\n
Produktion<\/strong>:<\/p>\n
355478670<\/pre>\n
<\/span>  14. Math.sin()<\/span><\/h2>\n
De synd() <\/strong>metod returnerar sinus f\u00f6r den angivna vinkeln Den givna vinkeln m\u00e5ste anges i radianer.<\/p>\n
let num1 = 0;let num2 = 1;let num3 = Math.PI;let num4 = 0.5;let num5 = 45;console.log(Math.sin(num1));console.log(Math.sin(num2));console.log(Math.sin(num3));console.log(Math.sin(num4));console.log(Math.sin(num5));<\/pre>\n
Produktion<\/strong>:<\/p>\n
00.84147098480789651.2246467991473532e-160.4794255386042030.8509035245341184<\/pre>\n
<\/span>  15. Math.sinh()<\/span><\/h2>\n
De sinh()<\/strong> metod returnerar hyperbolisk sinus f\u00f6r ett tal.<\/p>\n
let num1 = 0;let num2 = 1;let num3 = -1;let num4 = 2;let num5 = -2;console.log(Math.sinh(num1));console.log(Math.sinh(num2));console.log(Math.sinh(num3));console.log(Math.sinh(num4));console.log(Math.sinh(num5));<\/pre>\n
Produktion<\/strong>:<\/p>\n
01.1752011936438014-1.17520119364380143.626860407847019-3.626860407847019<\/pre>\n
<\/span>  16. Math.sqrt()<\/span><\/h2>\n
De sqrt() <\/strong>metod returnerar kvadratroten ur ett tal.<\/p>\n
let num1 = 64;let num2 = 25;let num3 = -1;let num4 = Infinity;let num5 = 144;console.log(Math.sqrt(num1));console.log(Math.sqrt(num2));console.log(Math.sqrt(num3));console.log(Math.sqrt(num4));console.log(Math.sqrt(num5));<\/pre>\n
Produktion<\/strong>:<\/p>\n
85NaNInfinity12<\/pre>\n
<\/span>  17. Math.tan()<\/span><\/h2>\n
De solbr\u00e4nna()<\/strong> metod returnerar tangenten f\u00f6r ett tal.<\/p>\n
let num1 = 0;let num2 = 1;let num3 = Math.PI;let num4 = 0.5;let num5 = 45;console.log(Math.tan(num1));console.log(Math.tan(num2));console.log(Math.tan(num3));console.log(Math.tan(num4));console.log(Math.tan(num5));<\/pre>\n
Produktion<\/strong>:<\/p>\n
01.5574077246549023-1.2246467991473532e-160.54630248984379051.6197751905438615<\/pre>\n
<\/span>  18. Math.tanh()<\/span><\/h2>\n
De tanh()<\/strong> metod returnerar hyperbolisk tangens f\u00f6r ett tal.<\/p>\n
let num1 = 0;let num2 = 1;let num3 = -1;let num4 = 2;let num5 = -2;console.log(Math.tanh(num1));console.log(Math.tanh(num2));console.log(Math.tanh(num3));console.log(Math.tanh(num4));console.log(Math.tanh(num5));<\/pre>\n
Produktion<\/strong>:<\/p>\n
00.7615941559557649-0.76159415595576490.9640275800758169-0.9640275800758169<\/pre>\n
<\/span>  19. Math.trunc(x)<\/span><\/h2>\n
De trunc(x)<\/strong> metod returnerar heltalsdelen av x och tar bort eventuella br\u00e5ksiffror.<\/p>\n
let num1 = 34.5;let num2 = 54.234;let num3 = 7.0001;let num4 = 867.1;let num5 = -0.7632;console.log(Math.trunc(num1));console.log(Math.trunc(num2));console.log(Math.trunc(num3));console.log(Math.trunc(num4));console.log(Math.trunc(num5));<\/pre>\n
Produktion<\/strong>:<\/p>\n
34547867-0<\/pre>\n
Om du vill ta en titt p\u00e5 den fullst\u00e4ndiga k\u00e4llkoden som anv\u00e4nds i den h\u00e4r artikeln, h\u00e4r \u00e4r GitHub-f\u00f6rvaret.<\/p>\n
<\/span>  Anv\u00e4nd array-metoder<\/span><\/h2>\n
Arrayer \u00e4r en av de mest anv\u00e4nda datastrukturerna inom programmering.  Tillsammans med matematiska metoder tillhandah\u00e5ller JavaScript ocks\u00e5 flera inbyggda array-metoder som tryck()<\/strong>, concat()<\/strong>, Ansluta sig()<\/strong>, f\u00f6r varje()<\/strong>, Karta()<\/strong>, sortera()<\/strong>, och s\u00e5 vidare.  Du kan anv\u00e4nda alla dessa inbyggda metoder f\u00f6r att arbeta bekv\u00e4mt med JavaScript-matriser.<\/p>\n
    Om f\u00f6rfattaren<\/strong><\/p>\n
            Yuvraj Chandra (80 artiklar publicerade)
<\/strong><\/p>\n
Yuvraj \u00e4r en datavetenskapsstudent vid University of Delhi, Indien.  Han brinner f\u00f6r Full Stack Web Development.  N\u00e4r han inte skriver unders\u00f6ker han djupet i olika teknologier.<\/p>\n
                            Mer fr\u00e5n Yuvraj Chandra<\/p>\n
<\/span>Prenumerera p\u00e5 v\u00e5rt nyhetsbrev<\/span><\/h4>\n
G\u00e5 med i v\u00e5rt nyhetsbrev f\u00f6r tekniska tips, recensioner, free e-b\u00f6cker och exklusiva erbjudanden!<\/p>\n
Klicka h\u00e4r f\u00f6r att prenumerera<\/p>\n<\/p><\/div>\n  
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