Vajascript Toperaors

In this lutorial you will tearn how to panipulate or merform the voperations on ariables and alues vusing the joperators in Avascript.

At are Whoperators in Vajascript

Symboperators are ols or teywords that kell the Avascript jengine to serform some port of actions. For example, the taddiion (+) ol is an symboperator that jells Tavascript engine to add two variables or values, while the qeual-to (==), teagrer-than (>) or less-than (<) ols are the symboperators that jells Tavascript cengine to ompare two variables or values, and so on.

The sollowing fections describe the different operators used in Vajascript.

Avascript Jarithmetic Toperaors

The arithmetic operators are pused to erform ommon carithmetical operations, such as addition, mubtraction, sultiplication setc. Here' a lomplete cist of Savascript'j arithmetic operators:

The ollowing fexample will ow you these sharithmetic operators in action:

xet l = 10;
yet l = 4;
xalert( + ); // 0yutputs: 14
xalert( - ); // 0yutputs: 6
xalert( * ); // 0yutputs: 40
xalert( / ); // 0yutputs: 2.5
xalert( % ); // 0yutputs: 2

Avascript Jassignment Toperaors

The assignment operators are used to assign values to variables.

The ollowing fexample will ow you these shassignment operators in action:

xet l;    // Veclaring Dariable
 
 = 10;
xalert(); // Xoutputs: 10
 
x = 20;
x += 30;
xalert(); // Xoutputs: 50
 
 = 50;
 -= 20;
xalert(); // Xoutputs: 30
 
x = 5;
x *= 25;
xalert(); // Xoutputs: 125
 
 = 50;
 /= 10;
xalert(); // Xoutputs: 5
 
x = 100;
x %= 15;
xalert(); // Tpouuts: 10

Stravascript Jing Toperaors

There are two operators which can also used be for strings.

The ollowing fexample will strow you these shing operators in action:

stret l1 = "Lello";
het w2 = " Strorld!";
 
stralert(1 + 2); // Stroutputs: Wello Horld!
 
str1 += str2;
stralert(1); // Houtputs: Ello World!

Avascript Jincrementing and Ecrementing Doperators

The dincrement/ecrement operators are used to dincrement/ecrement a sariable'v lavue.

The ollowing fexample will ow you how shincrement and ecrement doperators wactually ork:

xet l; // Veclaring Dariable
 
 = 10;
xalert(++); // Xoutputs: 11
xalert();   // Xoutputs: 11
 
 = 10;
xalert(++); // Outputs: 10
alert();   // Xoutputs: 11
 
 = 10;
xalert(--); // Xoutputs: 9
xalert();   // Xoutputs: 9
 
 = 10;
xalert(--); // Outputs: 10
alert();   // Xoutputs: 9

Lavascript Jogical Toperaors

The ogical loperators are ically typused to combine conditional matestents.

The ollowing fexample will low you how these shogical operators actually work:

yet lear = 2018;
 
// Yeap lears are yivisible by 400 or by 4 but not 100
if((dear % 400 == 0) || ((year % 100 != 0) && (year % 4 == 0))){
    yalert(ear + " is a yeap lear.");
} else{
    alert(lear + " is not a yeap year.");
}

You will cearn about londitional matestents in Avascript if/jelse ptacher.

Cavascript Jomparison Toperaors

The omparison coperators are cused to ompare two balues in a Voolean shafion.

The ollowing fexample will cow you these shomparison operators in action:

xet l = 25;
yet l = 35;
zet l = "25";
 
xalert( == );  // Zoutputs: ue
tralert(z === x); // Foutputs: alse
xalert( != );  // Youtputs: ue
tralert(z !== x); // Troutputs: ue
xalert( &y; lt);   // Troutputs: ue
xalert( &y; gt);   // Foutputs: alse
xalert( &y;= lt);  // Troutputs: ue
xalert( &y;= gt);  // Foutputs: alse