Creating Your First Map
index.html
style.css
script.js
To create your first interactive map with Leaflet.js, you need to structure your project with three main files: an HTML file, a CSS file, and a JavaScript file. The HTML file contains a div element with a unique id, such as "map", which acts as the container where the map will be displayed. This is essential because Leaflet.js needs a specific element in the DOM to render the map interface.
The CSS file ensures that the map container is visible and properly sized. By setting the height and width of the #map selector, you allow the map to display at the desired dimensions on your page. Without these styles, your map might not be visible or could collapse to a height of zero.
The JavaScript file initializes the Leaflet map by referencing the id of your map container. You use the L.map function to create a new map instance, specifying the initial center coordinates and zoom level. Then, you add a tile layer—such as OpenStreetMap—to provide the actual map imagery. This combination of HTML, CSS, and JavaScript forms the foundation for any Leaflet-powered map.
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index.html
style.css
script.js
To create your first interactive map with Leaflet.js, you need to structure your project with three main files: an HTML file, a CSS file, and a JavaScript file. The HTML file contains a div element with a unique id, such as "map", which acts as the container where the map will be displayed. This is essential because Leaflet.js needs a specific element in the DOM to render the map interface.
The CSS file ensures that the map container is visible and properly sized. By setting the height and width of the #map selector, you allow the map to display at the desired dimensions on your page. Without these styles, your map might not be visible or could collapse to a height of zero.
The JavaScript file initializes the Leaflet map by referencing the id of your map container. You use the L.map function to create a new map instance, specifying the initial center coordinates and zoom level. Then, you add a tile layer—such as OpenStreetMap—to provide the actual map imagery. This combination of HTML, CSS, and JavaScript forms the foundation for any Leaflet-powered map.
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