Feb 11, 2013 · 1) map has no meaning without callback 2) if callback isn't function, yours map implementation just runs meaningless for-loop. Also, Object.prototype.hasOwnProperty.call( obj, key …

Jun 27, 2015 · I am aware of wu.js, but I'm running a Babel project and don't want to include Traceur, which it seems like it currently depends on. I also am a bit clueless as to how to extract how …

The .map files are for JavaScript and CSS (and now TypeScript too) files that have been minified. They are called source maps. When you minify a file, like the angular.js file, it takes thousands of lines of …

Sep 3, 2015 · Select your *.js file Select the corresponding *.js.map file Browse the non-minified code on the right There might be a lot of noise from webpack:///node_modules/ modules that you're probably …

Chrome appears to be assuming that the sourceURL within js/app.js is relative to index.html, while Firefox instead (correctly, from my perspective) interprets it as being relative to app.js. I suggest that …

Jun 16, 2015 · @MelbourneDeveloper, Typically, the file is named *.map, so if your file is main.js, then the sourcemap is called main.js.map. During development with webpack-dev-server, howerver, no …

May 31, 2019 · Map is a data class in JS that can use any kind of object as a key, while Record is just a type definition that describes an object, where the keys have to be JS object keys (string, number, or …

The original JS map stringifies the key and I am not wanting to do the same type of stringify hack with the new ES6 Map. What can I do to use arrays as keys reliably for a ES6 Map?

Apr 3, 2021 · I was trying to explore how JavaScript Object performs in comparison to Map or Set for normal key accesses. I ran the below 3 codes on JSBEN.CH. Objects const object = {}; for (let i = 0; i …

Feb 12, 2022 · I cloned a repo with a build command that runs webpack and it generates an index.js and index.map.js file. I assume index.js is a minified version of all the code, but what is index.map.js?