npm install type-coercecoerce
===
helper to coerce value to expected type
useful to parse query-string parameters
npm install type-coerceJavaScript
let coerce = require('type-coerce')
let val = coerce.int('123')
// val = 123let arr = coerce.array('a,b,c')
// val = ['a', 'b', 'c']
`API
* on success: => coerced value
* on failure: => #### coerce.int(val) =>
, an integer#### coerce.floar(val) =>
Number#### coerce.bool(val) =>
or false
* , 'true', 'True', 'TRUE', '1', 1 returns true
* , 'false', 'False', 'FALSE', '0', 0 returns false
* anything else fails the coercion#### coerce.string(val) =>
* if is string => val
* otherwise, => #### coerce.array(val, elemT, sep) => Array of String
* val:
*
: parse into Array, split by sep, parse element by elemT
* , undefined: undefined
* : parse elements with elemT
* otherwise,
* sep: explicitly specify separator, or RegExp
default: , this splits string with , and trims spaces
* elemT: element parser, (str)=>element
* a function that parses array element
* default:
* or elemT can be omitted, or passed in reverse order#### coerce.typedArray(sep, elemT) =>
(val)=>coerce.array(val, sep, elemT)
* create a partial initialized function to use later
* take , elemT as arguments#### coerce.any(val) =>
val
* => #### coerce.date(val) =>
* is passed to new Date()`