ReferenceError: Invalid left-hand side in assignment
You have to use == to compare (or even ===, if you want to compare types). A single = is for assignment.
javascript
How can I remove a character from a string using JavaScript?
I am so close to getting this, but it just isn’t right. All I would like to do is remove the character r from a string. The problem is, there is more than one instance of r in the string. However, it is always the character at index 4 (so the 5th character). Example string: crt/r2002_2 What I want: crt/2002_2 This … Read more
Angular: Error no directive with “exportAs” set to “ngForm”
The error was caused by this line: This is the correct line: Here is the working example. When you use ngModel within the form tag you also need to provide value for the “name” attribute.
Developing an ad with MRAID.js
I need to develop an ad that’s MRAID compliant. I’ll be hand-coding the ad in HTML5 and not using any authoring software with an MRAID SDK. According to the spec, mraid.js gets injected by the SDK where the ad is hosted. How do I get access to the MRAID functions to test when developing the … Read more
ESLint Parsing error: Unexpected token
Unexpected token errors in ESLint parsing occur due to incompatibility between your development environment and ESLint’s current parsing capabilities with the ongoing changes with JavaScripts ES6~7. Adding the “parserOptions” property to your .eslintrc is no longer enough for particular situations, such as using in ES6 classes as ESLint is currently unable to parse it on … Read more
How to test valid UUID/GUID?
Currently, UUID’s are as specified in RFC4122. An often neglected edge case is the NIL UUID, noted here. The following regex takes this into account and will return a match for a NIL UUID. See below for a UUID which only accepts non-NIL UUIDs. Both of these solutions are for versions 1 to 5 (see the … Read more
Google weather widget on my website
I want to show weather on my website. I looked into all the weather widgets I could find online, none of them looked as cool as the one I see on google ( when i search weather for my city ) and I could not find any documentation on how to embed it in my … Read more
querySelector vs. getElementById
I have heard that querySelector and querySelectorAll are new methods to select DOM elements. How do they compare to the older methods, getElementById and getElementsByClassName in terms of performance and browser support? How does the performance compare to using jQuery’s query selector? Is there a best practice recommendation for which method to use?
Escaping Discord subset of markdown
I’m trying to escape the subset of markdown that Discord supports (*, _, `, ~). Characters that are already escaped should not have additional backslashes added. This is what I have: Run code snippetExpand snippet This works fine, minus the fact that multiple markdown characters against each other will not all be escaped. I’m not sure how to … Read more
How to extract extension from filename string in Javascript?
how would i get the File extension of the file in a variable? like if I have a file as 1.txt I need the txt part of it.