// Using html in javascript document.write("

NAMIT JAIN'S FIRST JS CODE

"); // Normal Additon and subtraction document.write("

Normal Additon and subtraction

"); var x = 10; var y = ++x; y++; x -= 2; document.write("y = "+y+" x = "+x+"
"); document.write(y == 12, " ", x == 10, "
"); // ternary operator document.write("

Using ternary operations!

"); document.write((x>10)?"x > 10":"x < 10", " "); document.write((y>10)?"and y > 10":"and y < 10", "

"); var a = "hello"; var b = "world"; // function document.write("

Using basic functions

"); function func(a, b){ if (a > b){ document.write(a); } else if (a == b){ document.write(a + b); } else{ document.write(b); } document.write("
"); } func(a, b); b = b.toUpperCase(); func(a, b); document.write("

"); // for loop document.write("

Basic For loop

"); for (var i = 1; i <= 10; i++){ document.write(i+" "); } document.write("

"); var a = 11; // Using switch in function(having default value of b) document.write("

Using switch in function(having default a value)

"); function func2(a, b=0){ switch (a){ case 1 + b: a += 2; case 3 + b: a += 2; case 5 + b: document.write(a, "
"); a++; break; case 6 + b: document.write("a = 16
"); default: document.write("hi
"); } document.write("Finally, a = ", a, "

"); } func2(a, 10); func2(a); // Trying out === document.write("

Playing with == and ===

"); a = 10; b = 10; document.write(a == b, " ", a === b, "
"); var p = [1, 2, 3]; var q = [1, 2, 3]; document.write(p == q, " ", p === q, "

"); for (var i = 0; i < 3; i++){ document.write(p[i] == q[i], " ", p[i] === q[i], "

"); } // Making some patterns document.write("

Trying out some patterns using for loops and lists

"); var l = []; a = " "; for (var i = 1; i <= 9; i++){ l = []; a += " " + i; for (var j = 9-i; j >= 0; j--){ l += ["# "]; } for (var k = a.length-1; k >= 0; k--){ l += [a[k]]; } document.write("

", l, "

"); } // Using while loop document.write("

Using while loop

"); var n = 1; while (n <= 10){ document.write(n, " "); n++; } document.write("

Do while loop

") var c = 1; do{ document.write(c, " "); c++; }while (c > 2) document.write(c, "
") c = 0; do{ c++; document.write(c, " "); }while (c < 10) document.write("

Using break and continue statement

") var c = 0; var sum = 0; while (c < 10){ c++; if (c > 7){ break; } else if (c == 4){ continue; } sum += c; // 1 + 2 + 3 + 5 + 6 + 7 = 24 } document.write("sum = ",sum,"
c = ", c) /* STRING FUNCTIONS var x = "hello world" x.toUpperCase(), x.toLowerCase(), x.length */

JavaScript First Code