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Tag: javascript

What is the difference between state and props in React?

I was watching a Pluralsight course on React and the instructor stated that props should not be changed. I’m now reading an article (uberVU/react-guide) on props vs. state and it says Both props and state changes trigger a render update. Later in the article it says: Props (short for properties) are a C…

Converting base64 to blob in javascript

I tried to convert a JPEG’s base64 string to a blob on a Cordova/hybrid app running on iOS 8 using the following function b64toBlob. However it’s giving an error when we do How can be work around this error? Answer Try this out. Please note that dataURI is assumed to include base64 prefix. (e.g. &…

console.log to stdout on gulp events

I want to log to stdout (the config environment) when a gulp task is running or has run. Something like this: I am not sure what event I should be responding to or where to find a list of these. Any pointers? Many thanks. Answer (In December 2017, the gulp-util module, which provided logging, was deprecated. …

How to feature-detect es6 modules

I’d like to export a module using the ES6 syntax only if it is supported in the current runtime. The goal is to develop a library that support different module management systems. As export is a keyword, something like will throw a syntax error : Answer Use ref