lanceDamage/firstprogfound.markdown

## firstprogfound.markdown

      
    Raw
  

              firstprogfound.markdown
            
          
    firstProgFound

A Pen by Heath Nieddu on CodePen.
License.

  
## index.html

<html>
        <head>
                <title>Simple Page</title>
        </head>
        <body>
          <h1 id="mainHeading"> Interesting Headline</h1>
                <p>This is a VERY  simple html page</p>
                <!--
                <script type="text/javascript" src=“script.js”></script>

                This source line wasn't working on my desktop, and it doesn't seem to needed here in codepen.io. I fear something may not be working here. -->
        </body>
</html>

## script.js
//1
var name = prompt("What is your name?")
alert("Hello, " + name);

//2
var a;
a = 5
a = 1000000
a = 123.456
a = -500
alert(a);

//3
var phrase = "This is a simple phrase.";
alert(phrase.length);

//4
var name = prompt("What is \nyour name?");
var message = "Hello,";
alert(message + name);

//conditionals, chapter 4

var a = 5;
var b = 10;

if (a < b){
    alert("Yes a is less than b");
    }

if (a == b){
  alert("Yes, a is equal to b");
}

//else statements

var balance = 5000

if (balance >= 0) {
  alert("Yes, you have money!");
  if (balance >= 10000) {
    alert("The balance is large!")
  }
} else {
  alert("Looks like you're out of money!");
}

//strict equality, using ===

var a = 123;
var b = "123";

//equality check

if (a == b){
  alert("They equal!");
} else {
  alert("They are not equal!");
}
//shows equality. js is being flexible here
//if I make the above ===, different result
if (a === b){
  alert("They equal!");
} else {
  alert("They are not equal!");
}
//for the above, !== strictly not equal also works.

//switches

var grade = "Premium";

switch ( grade ) {
        case "Regular":
                alert("It's $3.15");
                break; //add this break here to prevent fall through reading of the rest of the switch
        case "Premium":
                alert("It's $3.35");
                break;
        case "Diesel":
                alert("It's $3.47");
                break;
        default:
                alert("That's not a valid grade");
}

//time to take a look at functions

function myFunction(){
        var a = 5;
        var b = 10;
        var c = 20;
        var d = a + b + c;
        alert("The value of d is: " + d);
}

myFunction()

// parameterize functions

//parameterize a and b

function addTwoNumbers(a,b)        {
        var result = a + b;
        alert(result);
}

//when calling, function expects values for the a and b buckets.
//we can create variables within, or, we can give values when we call the function.

addTwoNumbers(5,10);

//check this out

function addTwoNumbers(a,b)        {
        var result = a + b;
        return result; // return produces the value and jumps you right out of block
}

addTwoNumbers(5,10);

//now, let's store multiple iterations of the function call

//...but, this works when you call the function multiple times, and you want to store multiple values

function addTwoNumbers(a,b)        {
        var result = a + b;
        return result;
}

var x = addTwoNumbers(5,10);
        alert(x);
var y = addTwoNumbers(10,20);
        alert(y);
var z = addTwoNumbers(100,200);
        alert(z);

//writing an iterative loop

var amount = 0;

//create the index
var i = 1;

//check condition
while ( i < 10 ) {
        amount = amount + 100;
        //iterate index
        i++;
}

alert("The value is " + amount);

//regular expressions
//Next we need to test our regex object.

//var myRE = new RegExp("hello");
//var myString = "Does this sentence have the word hello in it?";

//if ( myRE.test(MyString) ) //
        //alert("Yes");
//

//right now we return a string, Yes, but regex has other methods to return more complex objects
//!!!!I can't seem to get the above to work. Wierd

var myArray = [10,20,"test","TRUE",99]

var i = 0;

while ( i < myArray.length ) {
        ///...
        ///...
alert("The value is:" + myArray[i]);

i++;
}

//another example of iterating through an array

var myArray = [500,500,500,500,500]

var total = 0

for ( var i = 0; i < myArray.length; i++ ) {
        //add the durrent element to the total
        total = total + myArray[i];
}

//after we're done with the loop
alert("The total is: " + total);

	<html>
	<head>
	<title>Simple Page</title>
	</head>
	<body>
	<h1 id="mainHeading"> Interesting Headline</h1>
	<p>This is a VERY simple html page</p>
	<!--
	<script type="text/javascript" src=“script.js”></script>

	This source line wasn't working on my desktop, and it doesn't seem to needed here in codepen.io. I fear something may not be working here. -->
	</body>
	</html>
	//1
	var name = prompt("What is your name?")
	alert("Hello, " + name);

	//2
	var a;
	a = 5
	a = 1000000
	a = 123.456
	a = -500
	alert(a);

	//3
	var phrase = "This is a simple phrase.";
	alert(phrase.length);

	//4
	var name = prompt("What is \nyour name?");
	var message = "Hello,";
	alert(message + name);

	//conditionals, chapter 4

	var a = 5;
	var b = 10;

	if (a < b){
	alert("Yes a is less than b");
	}

	if (a == b){
	alert("Yes, a is equal to b");
	}

	//else statements

	var balance = 5000

	if (balance >= 0) {
	alert("Yes, you have money!");
	if (balance >= 10000) {
	alert("The balance is large!")
	}
	} else {
	alert("Looks like you're out of money!");
	}

	//strict equality, using ===

	var a = 123;
	var b = "123";

	//equality check

	if (a == b){
	alert("They equal!");
	} else {
	alert("They are not equal!");
	}
	//shows equality. js is being flexible here
	//if I make the above ===, different result
	if (a === b){
	alert("They equal!");
	} else {
	alert("They are not equal!");
	}
	//for the above, !== strictly not equal also works.

	//switches

	var grade = "Premium";

	switch ( grade ) {
	case "Regular":
	alert("It's $3.15");
	break; //add this break here to prevent fall through reading of the rest of the switch
	case "Premium":
	alert("It's $3.35");
	break;
	case "Diesel":
	alert("It's $3.47");
	break;
	default:
	alert("That's not a valid grade");
	}

	//time to take a look at functions

	function myFunction(){
	var a = 5;
	var b = 10;
	var c = 20;
	var d = a + b + c;
	alert("The value of d is: " + d);
	}

	myFunction()

	// parameterize functions

	//parameterize a and b

	function addTwoNumbers(a,b) {
	var result = a + b;
	alert(result);
	}

	//when calling, function expects values for the a and b buckets.
	//we can create variables within, or, we can give values when we call the function.

	addTwoNumbers(5,10);

	//check this out

	function addTwoNumbers(a,b) {
	var result = a + b;
	return result; // return produces the value and jumps you right out of block
	}

	addTwoNumbers(5,10);

	//now, let's store multiple iterations of the function call

	//...but, this works when you call the function multiple times, and you want to store multiple values

	function addTwoNumbers(a,b) {
	var result = a + b;
	return result;
	}

	var x = addTwoNumbers(5,10);
	alert(x);
	var y = addTwoNumbers(10,20);
	alert(y);
	var z = addTwoNumbers(100,200);
	alert(z);

	//writing an iterative loop

	var amount = 0;

	//create the index
	var i = 1;

	//check condition
	while ( i < 10 ) {
	amount = amount + 100;
	//iterate index
	i++;
	}

	alert("The value is " + amount);

	//regular expressions
	//Next we need to test our regex object.

	//var myRE = new RegExp("hello");
	//var myString = "Does this sentence have the word hello in it?";

	//if ( myRE.test(MyString) ) //
	//alert("Yes");
	//

	//right now we return a string, Yes, but regex has other methods to return more complex objects
	//!!!!I can't seem to get the above to work. Wierd

	var myArray = [10,20,"test","TRUE",99]

	var i = 0;

	while ( i < myArray.length ) {
	///...
	///...
	alert("The value is:" + myArray[i]);

	i++;
	}

	//another example of iterating through an array

	var myArray = [500,500,500,500,500]

	var total = 0

	for ( var i = 0; i < myArray.length; i++ ) {
	//add the durrent element to the total
	total = total + myArray[i];
	}

	//after we're done with the loop
	alert("The total is: " + total);