javascript

For loop for HTMLCollection elements

In response to the original question, you are using for/in incorrectly. In your code, key is the index. So, to get the value from the pseudo-array, you’d have to do list[key] and to get the id, you’d do list[key].id. But, you should not be doing this with for/in in the first place. Summary (added in … Read more

jQuery Ajax POST example with PHP

Basic usage of .ajax would look something like this: HTML: jQuery: Note: Since jQuery 1.8, .success(), .error() and .complete() are deprecated in favor of .done(), .fail() and .always(). Note: Remember that the above snippet has to be done after DOM ready, so you should put it inside a $(document).ready() handler (or use the $() shorthand). Tip: You can chain the callback handlers like this: $.ajax().done().fail().always(); PHP (that is, form.php): Note: Always sanitize posted data, … Read more

npm WARN enoent ENOENT: no such file or directory, open ‘C:\Users\Nuwanst\package.json’

Have you created a package.json file? Maybe run this command first again. C:\Users\Nuwanst\Documents\NodeJS\3.chat>npm init It creates a package.json file in your folder. Then run, C:\Users\Nuwanst\Documents\NodeJS\3.chat>npm install socket.io –save The –save ensures your module is saved as a dependency in your package.json file. Let me know if this works.

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