javascript integer.parseint code example

Example 1: Javascript string to int

var myInt = parseInt("10.256"); //10
var myFloat = parseFloat("10.256"); //10.256

Example 2: parseint js

parseInt(" 0xF", 16);
parseInt(" F", 16);
parseInt("17", 8);
parseInt(021, 8);
parseInt("015", 10);
parseInt(15.99, 10);
parseInt("FXX123", 16);
parseInt("1111", 2);
parseInt("15*3", 10);
parseInt("15e2", 10);
parseInt("15px", 10);
parseInt("12", 13);

//Return: 15

Example 3: how to take value from html text box using parseint javascript

<!-- GET VALUE/INTEGER FROM HTML TEXTBOX/<INPUT> -->

<!-- First set up your input box within the <body> tag -->
<input id="example"> <!-- you are able to set the id to whatever you like,
						just make sure it is unique to your page and is
						understandable -->

<script> <!-- Use this tag within the body to write javascript in -->
  
</script>

<!-- Inside the script tag, use parseInt() to grab value and assign it 
to a variable to use later -->
<script>
  var examplevar = parseInt(document.getElementById("example").value);
</script>
<!-- Make sure to set the identifier/id of the .geteElementBy tag to the id of
the textbox you want to grab the value from, or else it will result in
 an error message. -->

<!-- You now have a variable that can be used for math equations in 
javascript -->

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