You can use the HTML5 <canvas> for it: Create a canvas, load your image into it and then use toDataURL() to get the Base64 representation (actually, it’s a data: URL, but it contains the Base64-encoded image).
There isn’t from a hyperlink, no. Not unless the page has script inside specifically for this and it’s checking for some parameter….but for your question, no, there’s no built-in support in browsers for this. There are however bookmarklets you can bookmark to quickly run JavaScript functions from your address bar; not sure if that meets … Read more
I’m new to React, just have a question on setState method. Let’s say we have a component: so why we have to use prevState in the setState method? why can’t we just do:
I am new to JavaScript and I’m getting an error as below. Uncaught TypeError: time.indexOf is not a function Gee, I really thought indexOf() really was a function. Here is a snippet of my code:
just like PHP you can do but with different method. access this way : “String :” + res[0]+” “+res[1]+” “+res[4]+” “ output : How are today?
When relying upon ECMAScript 6 features such as const, you should set this option so JSHint doesn’t raise unnecessary warnings. /*jshint esnext: true */ (Edit 2015.12.29: updated syntax to reflect @Olga’s comments) This option, as the name suggests, tells JSHint that your code uses ECMAScript 6 specific syntax. http://jshint.com/docs/options/#esversion Edit 2017.06.11: added another option based on this answer. While inline … Read more
jQuery <1.9 jQuery 1.9+ Read more about difference between prop and attr
Use splice(startPosition, deleteCount) Show code snippet
Use this to transform a moment object into a date object: From http://momentjs.com/docs/#/displaying/as-javascript-date/ Yields:
Try the JavaScript in operator. And the inverse. Be careful! The in operator matches all object keys, including those in the object’s prototype chain. Use myObj.hasOwnProperty(‘key’) to check an object’s own keys and will only return true if key is available on myObj directly: Unless you have a specific reason to use the in operator, using myObj.hasOwnProperty(‘key’) produces the result most code is looking for.