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JavaScript is a versatile, high-level programming language. It is the programming language in all browsers.and can be used for back-end programming with node.js. Use this tag for questions regarding vanilla JavaScript; optionally tagged with an ECMAScript version. If you are using a preprocessor such as TypeScript please tag with that too.
5
votes
Function to check if a numbers sequence is increasing
It has already been mentioned, but if you mean a "non decreasing" sequence as opposed to a strictly increasing sequence, you could use the following.
function isNonDecreasingSequence(numbers) {
…
3
votes
Concatenating CSV filenames into a single file
There is a security vulnerability. An attacker could set scripts to
../../index.php
And the script will send the raw PHP to the browser. From there it would be easy to find your config file with …
1
vote
JS form verification
You can wrap all your code in a self-executing anonymous function, which will stop you from having any problems with variables leaking out of scope.
I would also recommend splitting out the various c …