**[ This description is mirrored from README.md at [github.com/UdeSElements/udes-functions-mixins](https://github.com//UdeSElements/udes-functions-mixins/blob/v3.0.0/README.md) on 2019-05-10 ]** [](https://www.webcomponents.org/element/UdeSElements/udes-functions-mixins) [](https://www.polymer-project.org) [](https://travis-ci.org/UdeSElements/udes-functions-mixins) # UdeS.FunctionsMixins This repository provides useful functions to help you create faster your Polymer applications and components. In Polymer, when we want to use a dom-if, we should provide it a boolean property. However, when we want to provide the result of a function, we must define that function inside our element, even if that function is simple as `note > 60` by example. By using the `UdeS.FunctionsMixins`, you no longer need to create and maintain theses custom functions. You could simply write your dom-if as below: ```html ``` ## Mixins ### Base mixins - **UdeS.ArrayFunctionsMixin** - `array` Return an array of arguments. - `at` Return the element of array at the specified index. - **EqualityOperatorsMixin** - `equal` Perform a comparison (a == b) on all arguments. - `strictEqual` Perform a strict comparison (a === b) on all arguments. - `notEqual` Perform a comparison (a != b) on all arguments. - `notStrictEqual` Perform a strict comparison (a !== b) on all arguments. - **UdeS.IsFunctionsMixin** - `isAllUndefined` Check if the all variables are undefined. - `isArray` Check if the variable is an array. - `isEmptyArray` Check to see if an array is empty. - `isEmptyObject` Check to see if an object is empty (contains no enumerable properties). - `isEmptyString` Check to see if a string is empty. - `isInteger` Check to see if a string is an integer. - `isPositiveInteger` Check to see if a string is a positive integer. - `isUndefined` Check if at least one variable is undefined. - `isUndefinedVariable` Check if the variable is undefined. - **UdeS.LogicalOperatorsMixin** - `and` And function (&&). - `iif` If function. - `not` Not function (!). - `or` Or function (||). - `xor` Exclusive or function. ### Grouping mixins - **UdeS.ComparisonOperatorsMixins** - UdeS.EqualityOperatorsMixin - UdeS.RelationalOperatorsMixin - **UdeS.FunctionsMixins** - UdeS.ArrayFunctionsMixin - UdeS.ComparisonOperatorsMixins - UdeS.EqualityOperatorsMixin - UdeS.RelationalOperatorsMixin - UdeS.IsFunctionsMixin