sync speedup
This commit is contained in:
Kevin Jahns
@@ -54,123 +54,9 @@ A string property can be either mutable or immutable.
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yatta.val('mutable_string').insertText(2,"XXX"); // position, string
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yatta.val('mutable_string').deleteText(0,1); // position, deletion length
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console.log(yatta.val('mutable_string').val() === "eXXXxt"); // true
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```
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You can omit the mutable - parameter. In that case the default will be used.
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Initially the default is 'mutable'. You can set it like this:
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```js
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yatta.setMutableDefault('mutable');
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// or
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yatta.setMutableDefault('immutable');
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yatta.val('new_string', "string");
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console.log(yatta.val('new_string') === "string"); // true
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```
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yatta is chainable:
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```js
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yatta.val('a', 4).val('b',5);
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console.log(yatta.val('a') === 4); // true
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console.log(yatta.val('b') === 5); // true
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```
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You can alse set objects.
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```js
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yatta.val('object', {a : {b : "b"}, c : { d : 5 }});
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console.log(yatta.val('object').val('c').val('d') === 5); // true
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```
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Lists are always immutable.
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```js
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yatta.val('list', [1,2,3]);
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console.log(yatta.val('list')[2] === 3); // true
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```
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But there is a much more convenient way!
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```js
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console.log(yatta.value.list[2] === 3) // true
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yatta.value.list = [3,4,5]
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console.log(yatta.val('list')[2] === 5) // true
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yatta.value.object = {c : 4}
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console.log(yatta.value.object.c === 4) // true
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```
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The downside is that you are only allowed to overwrite existing properties.
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```js
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yatta.value.newProperty = "Awesome"
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console.log(yatta.value.newProperty !== "Awesome") // true, yatta.value.newProperty is undefined.
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```
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So, how do we create new properties?
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```js
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yatta.value = {newProperty : "Awesome"}
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console.log(yatta.value.newProperty === "Awesome") // true, it's awesome ;)
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```
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This is stupid! I don't want to overwrite all my existing properties!
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Very well.. The solution is that we merge yatta.value with the new assignment.
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For example: assuming we want to overwrite yatta.value with some object o.
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Then these two rules apply:
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* The result has all properties of o
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* The result has all properties of yatta.value if they don't occur under the same property-name in o
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```js
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yatta.value = {newProperty : {Awesome : true }}
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console.log(yatta.value.list[2] === 5) // true, old value list still exists.
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console.log(yatta.value.newProperty.Awesome === true) // true, newProperty is overwritten.
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```
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Consider this case.
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```js
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yatta.value = {newProperty : { x : 4} }
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console.log(yatta.value.newProperty.Awesome == null) // true, newProperty was replaced, therefore it is now undefined
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```
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Did you notice that you always set immutable objects if you set properties like this?
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Even if the default is 'mutable'. If you want to work with mutable objects you have to work with .val().
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One last thing. You are only allowed to set properties like this `yatta.value = o`.
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Yatta can't observe if you overwrite object references `yatta = "Awesome"`.
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```js
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w = yatta.value.newProperty
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w = "Awesome"
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console.log(yatta.value.newProperty !== "Awesome") // true, still not awesome..
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```
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Please also read [JsonWrapper](https://rawgit.com/DadaMonad/Yatta/master/doc/class/JsonWrapper.html)
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```js
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})
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}
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window.onload = init
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@@ -42,89 +42,8 @@ function init(){
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yatta.val('mutable_string').deleteText(0,1); // position, deletion length
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console.log(yatta.val('mutable_string').val() === "eXXXxt"); // true
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/**
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You can omit the mutable - parameter. In that case the default will be used.
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Initially the default is 'mutable'. You can set it like this:
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*/
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yatta.setMutableDefault('mutable');
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// or
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yatta.setMutableDefault('immutable');
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yatta.val('new_string', "string");
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console.log(yatta.val('new_string') === "string"); // true
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/**
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yatta is chainable:
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*/
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yatta.val('a', 4).val('b',5);
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console.log(yatta.val('a') === 4); // true
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console.log(yatta.val('b') === 5); // true
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/**
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You can alse set objects.
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*/
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yatta.val('object', {a : {b : "b"}, c : { d : 5 }});
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console.log(yatta.val('object').val('c').val('d') === 5); // true
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/**
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Lists are always immutable.
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*/
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yatta.val('list', [1,2,3]);
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console.log(yatta.val('list')[2] === 3); // true
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/**
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But there is a much more convenient way!
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*/
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console.log(yatta.value.list[2] === 3) // true
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yatta.value.list = [3,4,5]
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console.log(yatta.val('list')[2] === 5) // true
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yatta.value.object = {c : 4}
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console.log(yatta.value.object.c === 4) // true
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/**
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The downside is that you are only allowed to overwrite existing properties.
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*/
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yatta.value.newProperty = "Awesome"
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console.log(yatta.value.newProperty !== "Awesome") // true, yatta.value.newProperty is undefined.
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/**
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So, how do we create new properties?
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*/
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yatta.value = {newProperty : "Awesome"}
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console.log(yatta.value.newProperty === "Awesome") // true, it's awesome ;)
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/**
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This is stupid! I don't want to overwrite all my existing properties!
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Very well.. The solution is that we merge yatta.value with the new assignment.
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For example: assuming we want to overwrite yatta.value with some object o.
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Then these two rules apply:
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* The result has all properties of o
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* The result has all properties of yatta.value if they don't occur under the same property-name in o
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*/
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yatta.value = {newProperty : {Awesome : true }}
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console.log(yatta.value.list[2] === 5) // true, old value list still exists.
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console.log(yatta.value.newProperty.Awesome === true) // true, newProperty is overwritten.
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/**
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Consider this case.
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*/
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yatta.value = {newProperty : { x : 4} }
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console.log(yatta.value.newProperty.Awesome == null) // true, newProperty was replaced, therefore it is now undefined
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/**
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Did you notice that you always set immutable objects if you set properties like this?
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Even if the default is 'mutable'. If you want to work with mutable objects you have to work with .val().
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One last thing. You are only allowed to set properties like this `yatta.value = o`.
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Yatta can't observe if you overwrite object references `yatta = "Awesome"`.
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*/
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w = yatta.value.newProperty
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w = "Awesome"
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console.log(yatta.value.newProperty !== "Awesome") // true, still not awesome..
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/**
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Please also read [JsonWrapper](https://rawgit.com/DadaMonad/Yatta/master/doc/class/JsonWrapper.html)
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*/
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})
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}
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window.onload = init
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