what-changed
v2.3.1
Published
Provides an overview of how a value changed since the last time you checked.
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what-changed
Provides an overview of how a value changed since the last time you checked.
usage
install:
npm install what-changed
require:
var WhatChanged = require('what-changed');
instantiate:
var state = new WhatChanged([initial value]);
change the value, and get the change overview:
state.update(123);
// -> {type: true, value: true}
The following describes expected output based on how a value changes:
1, 1
{}
1, 2
{
value: true,
any: true
}
1, true
{
value: true,
type: true,
any: true
}
1, '1'
{
type: true,
any: true
}
{a:1}, {a:1} (same instance)
{}
{a:1}, {a:1} (different instance)
{
reference: true
}
{a:1}, {b:1} (same instance)
{
keys: true,
structure: true,
any: true
}
{a:{b:1}}, {a:{b:2}} (same instance)
{
structure: true,
any: true
}
{a:1}, {b:1} (different instance)
{
reference: true,
keys: true,
structure: true,
any: true
}