JavaScript define

Define a new constant

function define (name, value) {
    // Define a new constant
    //
    // version: 903.3016
    // discuss at: http://phpjs.org/functions/define    // +      original by: Paulo Freitas
    // +       revised by: Andrea Giammarchi (http://webreflection.blogspot.com)
    // + reimplemented by: Brett Zamir (http://brett-zamir.me)
    // *        example 1: define('IMAGINARY_CONSTANT1', 'imaginary_value1');
    // *        results 1: IMAGINARY_CONSTANT1 == 'imaginary_value1'    var defn, replace, script, that = this,
        d = this.window.document;
    var toString = function (name, value) {
        return 'const ' + name + '=' + (/^(null|true|false|(\+|\-)?\d+(\.\d+)?)$/.test(value = String(value)) ? value : '"' + replace(value) + '"');
    };    try {
        eval('const e=1');
        replace = function (value) {
            var replace = {
                "\x08": "b",                "\x0A": "\\n",
                "\x0B": "v",
                "\x0C": "f",
                "\x0D": "\\r",
                '"': '"',                "\\": "\\"
            };
            return value.replace(/\x08|[\x0A-\x0D]|"|\\/g, function (value) {
                return "\\" + replace[value];
            });        };
        defn = function (name, value) {
            if (d.createElementNS) {
                script = d.createElementNS('http://www.w3.org/1999/xhtml', 'script');
            } else {                script = d.createElement('script');
            }
            script.type = 'text/javascript';
            script.appendChild(d.createTextNode(toString(name, value)));
            d.documentElement.appendChild(script);            d.documentElement.removeChild(script);
        };
    } catch (e) {
        replace = function (value) {
            var replace = {                "\x0A": "\\n",
                "\x0D": "\\r"
            };
            return value.replace(/"/g, '""').replace(/\n|\r/g, function (value) {
                return replace[value];            });
        };
        defn = (this.execScript ?
        function (name, value) {
            that.execScript(toString(name, value), 'VBScript');        } : function (name, value) {
            eval(toString(name, value).substring(6));
        });
    }
    defn(name, value);}

external links: original PHP docs | raw js source

Examples

Running

1	define('IMAGINARY_CONSTANT1', 'imaginary_value1');

Should result in

1	IMAGINARY_CONSTANT1 == 'imaginary_value1'

Dependencies

No dependencies, you can use this function standalone.

Open syntax issues

php.js uses JsLint to help us keep our code consistent and prevent some common bugs.

Eventually we want all code to pass or at least take into consideration most fixes suggested by JsLint, following this JsLint configuration we’ve decided on.

Authors

Thanks to the following developers, you get to have define goodness in JavaScript.

Paulo Freitas ( original )
Andrea Giammarchi ( revised )
Brett Zamir ( reimplemented )

Comments

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Content

Use:

[CODE]
your_stuff('here');
[/CODE]

for proper code formatting
By submitting code here you are allowing us to use it in php.js hence dual licensing it under the MIT and GPL licenses

Gotibandhu
23 Sep '11

Hi,
please check out this link.......
http://mindstick.com/Articles/0864994b-563d-4180-87bd-b6e3bea77c26/?Function%20in%20Java%20Script

Thanks !!!

Gotibandhu
23 Sep '11

Hi,
function start() {
document.write("This is start function which is called when the document is loaded in browser.<br />");
document.write("This is non parametrize function.<br />");
document.write("I am going to call a parametrize function which return addition of two number.<br />");
var num1 = 45, num2 = 66;
var res = getAddition(num1, num2);
document.write("Addition of two number is : " + res + " <br />");
}
For more details please check out the following link .............
Thanks a lot!!!!!

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