self-explain

self-explained

self explained tools - starting with "assert"

Install

$ npm install self-explained

language: also available in:

Use

var assert = require('self-exlain').assert;
 
var alpha = 10;
var betha = 7;
 
assert(alpha / 2 > betha -1);

It controls the expression like assert does. If the expression evaluates to false it will show the expression and the value. (also throws the Exception)

ASSERT FAILED
alpha / 2 > betha -1 ==== false

Much more info

var assert = require('self-exlain').assert;
 
var alpha = 10;
var betha = 7;
 
eval(assert(alpha / 2 > betha -1));

Adding eval to the assert It will shows the evaluation of all subexpressions

ASSERT FAILED
alpha / 2 > betha -1 ==== false
alpha / 2 ==== 5
betha -1 ==== 6
alpha ==== 10
betha ==== 7

Exceptions

Function assertCatch controls that an Error been throwed.

assertCatch(function{
    if(error){
        throw new Error('an error');
    }
}, /an error/);

Tests with real devices

NPM version	Device	OS	nav
0.10.0	HTC Desire	Android 2.2.2	Android 2.2.2
0.10.0	Samgsung Galaxy Note 4	Android 5.1.1	Samsung Internet 4.0.0
0.10.2	Samgsung Galaxy Note 4	Android 6.0.1	Chrome Mobile [phone]
0.10.0	Blue Vivo Air LTE	Android 5.0.2	Chrome Mobile [phone]
0.10.0	iPad mini Retina	iOS 8.4.0	Mobile Safari 8.0.0
0.10.0	VMWare	WinXP	IE 8.0.0

License

MIT