User:Lemmiwinks2/Javascript

Javascript
x+=y x=x+y x-=y x=x-y x*=y x=x*y x/=y x=x/y == is equal to === is equal to and same type as != not equal to greeting=(visitor=="PRES")?"Dear President ":"Dear "; if vistitor=pres then greeting=dear president else greeting=dear && and ! not document.write("Hello \ World!"); if (condition1)
 * or
 * code to be executed if condition1 is true
 * }
 * else if (condition2)
 * code to be executed if condition2 is true
 * }
 * else
 * code to be executed if condition1 and condition2 are not true
 * }
 * code to be executed if condition1 and condition2 are not true
 * }
 * }

switch(n)
 * case 1:
 * execute code block 1
 * break;
 * case 2:
 * execute code block 2
 * break;
 * default:
 * code to be executed if n is different from case 1 and 2
 * }
 * }

alert("sometext"); confirm("sometext"); prompt("sometext","defaultvalue"); function functionname(var1,var2,...,varX)
 * some code
 * return;
 * }
 * }

for (var=startvalue;var<=endvalue;var=var+increment)
 * code to be executed
 * }
 * }

while (var<=endvalue)
 * code to be executed
 * }
 * }

do
 * code to be executed
 * break (optional)
 * continue (optional)
 * }
 * while (var<=endvalue);
 * while (var<=endvalue);

for (variable in array)
 * code to be executed
 * }
 * }

onload, onUnload, onFocus, onBlur, onChange, onMouseOver, onMouseOut, onSubmit. try
 * //Run some code here
 * throw 'somevalue';
 * }
 * catch(err)
 * //Handle errors here
 * }
 * //Handle errors here
 * }

string object ref var txt="Hello world!"; date object ref var myDate=new Date array object ref var myCars=new Array; boolean object ref var myBoolean=new Boolean; Math.E Math.PI Math.SQRT2 Math.SQRT1_2 Math.LN2 Math.LN10 Math.LOG2E Math.LOG10E Math.round Math.random Math.floor

var patt1=new RegExp("e"); document.write(patt1.test("The best things in life are free")); produces output 'true'. document.write(patt1.exec("The best things in life are free")); produces output 'e'. window object ref browser display screen visited urls current url

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