Less.js Math tan() Function
Last Updated :
06 Nov, 2022
Less.js is a simple CSS pre-processor that facilitates the creation of manageable, customizable, and reusable style sheets for websites. Since CSS is a dynamic style sheet language, it is preferred. LESS is adaptable, so it works with a wide range of browsers. Only CSS that has been created and processed using the CSS pre-processor, a computer language, can be used by web browsers. In addition to providing capabilities like variables, functions, mixins, and operations to help create dynamic CSS while maintaining backward compatibility, it is a CSS language extension.
In this article, we are going to discuss the Math tan() function, which is used to do the tangent function on a given value. This function takes a floating number or deg value or rad value as a parameter and performs an tan operation on that value and returns a number.
Syntax:
tan(value)
Parameters:
- value: This is the only compulsory parameter for this function. This parameter takes a floating number.
Compile LESS code into CSS code.
Example 1: The code below demonstrates the usage and implementation of the Misc tan() function.
HTML
<!DOCTYPE html>
< html >
< head >
< link rel = "stylesheet" type = "text/css"
href = "style.css" />
</ head >
< body >
< h1 style = "color:green" >GeeksforGeeks</ h1 >
< h3 >< b >Less.js Math tan() Function</ b ></ h3 >
< div class = "c1" >
< p class = "p1" >
< strong >
tan(55deg)
< br > 1.42814801
</ strong >
</ p >
</ div >
</ body >
</ html >
|
styles.less:
CSS
@body-bg- color : #eeeeee ;
@dark: hsl( 25 , 71% , 8% );
@light: rgb ( 253 , 255 , 146 );
@val: tan( 55 deg);
body{
background-color : @body-bg-color;
}
.c 1 {
width : 300px * @val;
height : 150px * @val;
margin : 1 rem * @val;
background-color : @dark;
}
.p 1 {
padding : 80px 0px 0px 120px ;
color : @light;
}
|
Now, to compile the above LESS code to CSS code, run the following command:
lessc style.less style.css
The compiled CSS file comes to be:
style.css:
CSS
body {
background-color : #eeeeee ;
}
.c 1 {
width : 428.44440202px ;
height : 214.22220101px ;
margin : 1.42814801 rem;
background-color : hsl( 25 , 71% , 8% );
}
.p 1 {
padding : 80px 0px 0px 120px ;
color : #fdff92 ;
}
|
Output:
Example 2: The code below demonstrates the usage and implementation of the Misc tan() function along with isnumber type function if and boolean logical functions.
HTML
<!DOCTYPE html>
< html >
< head >
< link rel = "stylesheet" type = "text/css"
href = "style.css" />
</ head >
< body >
< h1 style = "color:green" >GeeksforGeeks</ h1 >
< h3 >< b >Less.js Math tan() Function</ b ></ h3 >
< div class = "c1" >
< p class = "p1" >
< strong >
boolean(isnumber(@val))
< br > TRUE
</ strong >
</ p >
</ div >
</ body >
</ html >
|
styles.less:
CSS
@body-bg- color : #eeeeee ;
@dark: hsl( 25 , 71% , 8% );
@light: rgb ( 253 , 255 , 146 );
@val: tan( 20 rad);
@cond: boolean(isnumber(@val));
body{
background-color : @body-bg-color;
}
.c 1 {
width : 300px * @val;
height : 150px * @val;
margin : 1 rem * @val;
background-color : if(@cond, @light, @dark);
}
.p 1 {
padding : 80px 0px 0px 120px ;
color : if(@cond, @dark, @light);
}
|
Now, to compile the above LESS code to CSS code, run the following command:
lessc style.less style.css
The compiled CSS file comes to be:
style.css:
CSS
body {
background-color : #eeeeee ;
}
.c 1 {
width : 671.14828327px ;
height : 335.57414163px ;
margin : 2.23716094 rem;
background-color : #fdff92 ;
}
.p 1 {
padding : 80px 0px 0px 120px ;
color : hsl( 25 , 71% , 8% );
}
|
Output:
Reference: https://lesscss.org/functions/#math-functions-tan
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