TypeScript Map: A Complete Guide

TypeScript map is a new data structure that allows us to store data in the key-value pair and remembers the original insertion order of the keys. In the TypeScript map, we can use any value either as a key or as a value.

Understanding TypeScript map

With ES6 Map and Set were introduced into JavaScript. They finally bring more sophisticated data structures to your web applications. Because of that, they are a very welcome addition to the language.  For too long, arrays have been forced to solve every single problem that is out there.

A map in TypeScript is a data structure that contains key-value pairs. In this context, it is a bit like a Javascript object, but there are some significant differences:

  1. The keys aren’t limited to strings, numbers, and symbols.
  2. The map is a collection, meaning it has a size, an order, and can be iterated over.
  3. The maps are designed to deal with optional keys instead of with required keys. This is more important when using TypeScript and ensuring type safety.

How to create a Map in TypeScript

To create a map in TypeScript, use the following syntax.

let xmap = new Map();

To set a key-value in map, use map.set() function.

// app.ts

let xmap = new Map();

xmap.set('name', 'Krunal');
console.log(xmap);

Go to the terminal where this file is and run the following command.

tsc --target es6 app.ts

Here, if we don’t add –target flag, then we will get an error because it won’t be compatible with ES6. So, we have to add this flag to avoid any error.

After running the command, you will see the new file is created called app.js and now run that file to get the output.

node app
Output

#typescript #javascript #app.js

What is GEEK

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TypeScript Map: A Complete Guide

The Definitive Guide to TypeScript & Possibly The Best TypeScript Book

TypeScript Deep Dive

I've been looking at the issues that turn up commonly when people start using TypeScript. This is based on the lessons from Stack Overflow / DefinitelyTyped and general engagement with the TypeScript community. You can follow for updates and don't forget to ★ on GitHub 🌹

Reviews

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  • Love how precise and clear the examples and explanations are! (link)
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Special Thanks

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Share

Share URL: https://basarat.gitbook.io/typescript/

Author: Basarat
Source Code: https://github.com/basarat/typescript-book/ 
License: View license

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sarika Inogic

1623221809

Maplytics - Dynamics 365 CRM and Bing Maps Integration

Maplytics™ is an advanced mapping and data visualization tool for Microsoft Dynamics 365 CRM. It provides Territory Management, Appointment Planning, Routing, Radius Search and much more with support for PowerApps (CDS). Maplytics supports all Dynamics 365 deployment models for Dynamics CRM 2011 and above as well as native Dynamics 365 App for Phones and Tablets.
Below are the features you can avail with Maplytics
• Sales Territory Management: Geographically manage and align sales territories, perform binary operations on shapes, regions or territories on map. Assign multiple territories to a record.
• Auto Scheduling: Create an automated optimized schedule for multiple days on field including routes to follow each day based on details entered by user and also create activities for the same
• Check-In/Check-Out: Enable Check-In/Check-Out for field reps on site of visit with the option of Geofencing
• PCF control: User can add components on fields or grids within Dynamics CRM to view the respective records on the map within the record form or the entity grid
• Overlay: View records, shape files and existing territories together on map. View Census Data as existing Overlay feature.
• Proximity Search: Search records for a location based on radius or time with shortest travel and line of sight distance.
• Route Optimization: Optimize routes, find nearby records along the route and points of interest like Coffee Shops, Gas station, etc.
• Customizable Pushpins & Tooltip Cards: Plot desired icons for pushpins for seamless visual analysis. Call to action buttons on Tooltip cards for quick actions.
• Security template: System admin and Maplytics admin can provide selective access of actions to users
• Marketing Management: Create geographically targeted Marketing Lists for personalized and relevant promotions, marketing campaigns and events
• Mass Actions: Add to Route, Save Data, Schedule Appointments, Send Emails and more for records plotted on map
• Summary Card: Get aggregated information for enclosed area on map for quick analysis
• Layer Menu/Download Map: Show/hide layers plotted on map to toggle between them and Download the map as image visible on screen
• Mobility: Use native Dynamics 365 App for Phones and Tablets to get locational insights
• Heat Map Visualization: Analyze density of CRM data on map for insights through pie/column charts
• Real-Time Tracking: Managers can now track the location of Field Service Reps when on field in real time within Dynamics 365 Field service.
• Land Area Mapping: Define the area of land as agricultural, residential, commercial properties and visualize the same on the map.
• Territory Assignment Rule: Maplytics Admins and Managers can create simple/advanced rules based on which territories will be assigned to the records as per the required conditions.

#maps #bing #maps #map #dyynamics #65crm

Carmen  Grimes

Carmen Grimes

1599315196

TypeScript Map: A Complete Guide

TypeScript map is a new data structure that allows us to store data in the key-value pair and remembers the original insertion order of the keys. In the TypeScript map, we can use any value either as a key or as a value.

Understanding TypeScript map

With ES6 Map and Set were introduced into JavaScript. They finally bring more sophisticated data structures to your web applications. Because of that, they are a very welcome addition to the language.  For too long, arrays have been forced to solve every single problem that is out there.

A map in TypeScript is a data structure that contains key-value pairs. In this context, it is a bit like a Javascript object, but there are some significant differences:

  1. The keys aren’t limited to strings, numbers, and symbols.
  2. The map is a collection, meaning it has a size, an order, and can be iterated over.
  3. The maps are designed to deal with optional keys instead of with required keys. This is more important when using TypeScript and ensuring type safety.

How to create a Map in TypeScript

To create a map in TypeScript, use the following syntax.

let xmap = new Map();

To set a key-value in map, use map.set() function.

// app.ts

let xmap = new Map();

xmap.set('name', 'Krunal');
console.log(xmap);

Go to the terminal where this file is and run the following command.

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tsc --target es6 app.ts

Here, if we don’t add –target flag, then we will get an error because it won’t be compatible with ES6. So, we have to add this flag to avoid any error.

After running the command, you will see the new file is created called **app.js **and now run that file to get the output.

#typescript

Deshaun  Olson

Deshaun Olson

1598336632

TypeScript Map: A Complete Guide

TypeScript map is a new data structure that allows us to store data in the key-value pair and remembers the original insertion order of the keys. In the TypeScript map, we can use any value either as a key or as a value.

Understanding TypeScript map

With ES6  Map and  Set were introduced into JavaScript. They finally bring more sophisticated data structures to your web applications. Because of that, they are a very welcome addition to the language.  For too long, arrays have been forced to solve every single problem that is out there.

A map in TypeScript is a data structure that contains key-value pairs. In this context, it is a bit like a Javascript object, but there are some significant differences:

  1. The keys aren’t limited to strings, numbers, and symbols.
  2. The map is a collection, meaning it has a size, an order, and can be iterated over.
  3. The maps are designed to deal with optional keys instead of with required keys. This is more important when using TypeScript and ensuring type safety.

#typescript

TypeScript Map: A Complete Guide

TypeScript map is a new data structure that allows us to store data in the key-value pair and remembers the original insertion order of the keys. In the TypeScript map, we can use any value either as a key or as a value.

Understanding TypeScript map

With ES6 Map and Set were introduced into JavaScript. They finally bring more sophisticated data structures to your web applications. Because of that, they are a very welcome addition to the language.  For too long, arrays have been forced to solve every single problem that is out there.

A map in TypeScript is a data structure that contains key-value pairs. In this context, it is a bit like a Javascript object, but there are some significant differences:

  1. The keys aren’t limited to strings, numbers, and symbols.
  2. The map is a collection, meaning it has a size, an order, and can be iterated over.
  3. The maps are designed to deal with optional keys instead of with required keys. This is more important when using TypeScript and ensuring type safety.

How to create a Map in TypeScript

To create a map in TypeScript, use the following syntax.

let xmap = new Map();

To set a key-value in map, use map.set() function.

// app.ts

let xmap = new Map();

xmap.set('name', 'Krunal');
console.log(xmap);

Go to the terminal where this file is and run the following command.

tsc --target es6 app.ts

Here, if we don’t add –target flag, then we will get an error because it won’t be compatible with ES6. So, we have to add this flag to avoid any error.

After running the command, you will see the new file is created called app.js and now run that file to get the output.

node app
Output

#typescript #javascript #app.js