Highly configurable formatter that expects a valid number in 'computer' format and accepts the following as options for formatting

• negativeType string: 'right','left','brackets','none'; default = 'left' (note only used for setting of default symbols)
• negativeLeftSymbol string: default = '-' if negativeType is 'left', '(' if negativeType is 'brackets' and '' otherwise
• negativeRightSymbol string: default = '-' if negativeType is 'right', ')' if negativeType is 'brackets' and '' otherwise
• negativeLeftOut boolean: whether the left symbol should be outside, ie precede the prefix; default = true
• negativeRightOut boolean: whether the right symbol should be outside, ie follow the suffix; default = true
• prefix string: default = ''
• suffix string: default = ''
• integerSeparator string: to be used as the thousands separator; default = ','
• decimalsSeparator string: to be used as the thousanths separator; default = ''
• decimal string: char to be used as decimal point; default = '.'
• padLeft number: leading 0s will be added to left of number to make integer part this length; default = -1 /no padding
• padRight number: trailing 0s will be added; default = -1 /no padding
• round number: number of decimal places to round to (rounds to nearest integer, mid point rounds away from zero ie 3.55 ~ 3.6 to 1dp, -3.55 ~ -3.6 to 1dp; default = no rounding
• truncate number: number of decimal places to truncate (3.58 truncates to 3.5 for 1dp, 3 for 0dp); default = no truncating

• noUnits boolean: if true will override and leave out prefix and suffix; default= false
• noSeparator - boolean: if true will override both integer and decimals separator and leave them out

var format=require('format-number');
var formattedNumber = format({prefix: '£', suffix: '/item'})(68932, {noSeparator: true});

or

var format=require('format-number');
var myFormat = format({prefix: '£', suffix: '/item'});
var formattedNumber = myFormat(68932, {noSeparator: true});

will both set formattedNumber to '£68932/item'

The override options can be ommitted:

var format=require('format-number');
var formattedNumber = format({prefix: '£', suffix: '/item'})(68932);

returns '£68,932/item'