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JavaScript

jQuery

Python

PHP

HTML

SAS

VBA

JavaScript – Featured Example

How to Rotate an Image using JavaScript

Rotate image

<div id="div1">
  <img id="image1" src="http://theprogrammingexpert.com/wp-content/uploads/example-img1.png">
  <div id="click-me" onclick="rotateImage()">Rotate image</div>
</div>

<script>

var rotateDegrees = 0;  
function rotateImage(){
  rotateDegrees += 30;
  document.getElementById("image1").style.transform = "rotate(" + rotateDegrees + "deg)";
};

</script>

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jQuery – Featured Example

Example of Using the jQuery clone() Method

Clone box


<style>.box{ float: left; width: 50px; height: 50px; background: #7bbfa2; margin-right: 10px; margin-bottom: 10px; }</style>
<div id="div2">
  <div class="box"></div>
</div><div class="clear"></div>
<div id="click-me2" class="click-me">Clone box</div>

<script>
$("#click-me2").click(function(){
  var clonedP = $(".box:first").clone();
  var randomColor = "#" + (Math.floor(Math.random()*16777215).toString(16));
  clonedP.css("background",randomColor)
  clonedP.appendTo("#div2");
});
</script>

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Python – Featured Example

Reverse String with Recursion in Python

string = "Hello"

def reverse_string(string):
    if len(string) == 1:
        return string
    return reverse_string(string[1:]) + string[0:1]

print(reverse_string(string))

#Output:
olleH

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PHP – Featured Example

How to Check If String Contains Substring in PHP

$string = "I love to program!";
$substring = "program";

$result = str_contains($string,$substring)   /* $result = true */

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HTML – Featured Example

HTML Scrollable Div with Dynamic Content

This is a scrollable div

Keep clicking the button below to add enough divs to show the scrollbar.

Add text


<style>#div5 { height: 100px; width:300px; overflow-y: auto; border: 1px solid #444; padding: 5px; }</style>
<div id="div5">
  <div id="div6">This is a scrollable div</div>
</div>
<p>Keep clicking the button below to add enough divs to show the scrollbar.</p>
<div id="click-me">Add text</div>

<script>

$("#click-me").click(function(){
  $('<div class="new-div">This is a scrollable div</div>').appendTo("#div5");
});

</script>

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SAS – Featured Example

Generating Random Integers in a Range Using SAS

data k;
    a = 0;
    b = 10;
    do i = 1 to 10;
        rand_int = rand("integer",0,10);
        output;
    end;
run;

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VBA – Featured Example

VBA e – Using Exp() Function to Get Euler’s Constant e

Debug.Print Exp(1); 

'Output:
2.718281828459045

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