Tutorials on Web Development, Programming, and Web Design

ES6 Modules Overview

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To learn about ES6 Modules, you have to have Node.js and the typescript compiler tsc installed as described in previous tutorial.  This is because at the time of this writing, browsers have not...

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Example of set in Javascript ES6

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Here is an example of iterating through the values of a set in ES6… Unlike Map, it can only contain unique values.  You add to a set using “add” instead of “set”....

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Example of Map in Javascript ES6

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With ES6, we have Map where we can store key value pairs using the “set” method… We get elements out using “get” method.  The map has a property of size to indicate...

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Example of for-of block in Javascript ES6

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While in previous tutorials, we used the forEach method to iterate through all the elements of an array; now we can use the for-of construct like this … And you get the results as...

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Example of class in Javascript ES6

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Here is an example of a class with constructor in Javascript ES6… The class name “Animal” is typically capitalized.  The instance variable “person” is not.  You...

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Destructuring in Javascript ES6

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Here we have an object “john” assigned to “employee”.   If we want to extract out the property value of “name” into a variable “n”.  And the property...

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const keyword in Javascript ES6

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The “const” keyword has the same block scope as the “let” keyword as shown in previous tutorial.  With const, whatever was assigned, can not be changed… Note that once...

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Arrow functions in Javascript ES6

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Continuing from the last tutorial, we changed the anonymous function in an arrow function like this… This is equivalent to use of anonymous function… but is much more concise. You drop...

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Template Strings in Javascript ES6

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To show you template string in Javascript ES6, we continue directly from last tutorial but with one line changed… The result is the same.  Instead of using the single of double quotes to mark...

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