Density

NodeJs module for calculating keyword density in a text/html

Install

npm install density

How to use

density("Hello World").getDensity(); //plain text
density("<b>Hello</b> <i>World</i> hello all").getDensity(); //HTML

Output

The output of density is something like this:

[
    {
        "word": "world",
        "count": 1
    },
    {
        "word": "hello",
        "count": 2
    }
]

API

###density(inputStr)

Creating an density object.

Available since: v0.1.0

Parameters:

• inputStr : String Given input to parse/calculate.

Returns:

• density object.

Example:

density("Hello World")

###getDensity()

Calculate the density of keywords.

Available since: v0.1.0

Returns:

• An object that contains the density of keywords.

Example:

density("Hello World").getDensity()

###setOption(option, value)

Set a single option to density

Available since: v0.1.0

Parameters:

• option : String Option key name.

• value : String/Number Value of the option.

Returns:

• density object

###setOptions(options)

Set options to the density object.

Available since: v0.1.0

Parameters:

• options : Object Object that contains option keys with values.

Returns:

• density object

Example:

density("Hello World").setOptions({ minKeywordLength: 5 });

Author

Afshin Mehrabani

• Twitter
• Github
• Personal page

License

Copyright (C) 2012 Afshin Mehrabani ([email protected])

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.