Created
December 6, 2017 13:01
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watcher for variable BACKEND.components.catalogGrid
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| var watch = function (context, setter) { | |
| return function (varName, setter) { | |
| var value = undefined; | |
| Object.defineProperty(context, varName, { | |
| get: function () { return value; }, | |
| set: function (v) { | |
| value = v; | |
| console.log('Value changed! New value: ' + value); | |
| setter(value); | |
| } | |
| }); | |
| }; | |
| }; | |
| // Demo | |
| var varw = watch(window); | |
| varw('BACKEND', (v)=> { | |
| console.log('backend setter = ', v) | |
| var l = watch(v.components ); | |
| l('catalogGrid', v => { | |
| console.log('catalogGrid setter = ', v) | |
| v.styleGrid = 'grid'; | |
| }); | |
| }) | |
| BACKEND = { components: {} } | |
| BACKEND.components.catalogGrid = { name: 'grid', styleGrid: 'list'} | |
| 'finish'; |
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