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Use dynamic (variable) string as regex pattern in JavaScript
...g as regex:
Not every string is a valid regex, though: there are some speciall characters, like ( or [. To work around this issue, simply escape the string before turning it into a regex. A utility function for that goes in the sample below:
function escapeRegExp(stringToGoIntoTheRegex) {
return...
Is there a vr (vertical rule) in html?
... rule.
It does not make logical sense to have one. HTML is parsed sequentially, meaning you lay out your HTML code from top to bottom, left to right how you want it to appear from top to bottom, left to right (generally)
A vr tag does not follow that paradigm.
This is easy to do using CSS, howeve...
Exit Shell Script Based on Process Exit Code
...ror code if the file doesn't exist (since the sed part of the pipeline actually works, returning 0).
The bash shell actually provides an array which can assist in that case, that being PIPESTATUS. This array has one element for each of the pipeline components, that you can access individually like ...
console.log javascript [Function]
...
If it's a user defined function you can use:
console.log(callback.toString());
Otherwise you'll just get something like [native code] since built in functions are not written in JavaScript.
Example:
function x(){}
// Prints "function x(){}"
(function(callback){ console.log(call...
How to check file input size with jQuery?
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You actually don't have access to filesystem (for example reading and writing local files), however, due to HTML5 File Api specification, there are some file properties that you do have access to, and the file size is one of them.
F...
Debugging “Element is not clickable at point” error
...as no clue that the span exists, and the browser doesn't care when you actually click it, as a human. Neither moving around, nor waiting will solve this issue; either avoid Chrome/chromedriver, or rewrite the page's HTML seem to be the only options for people in case 3.
– Don...
http HEAD vs GET performance
... would focus on designing the ideal REST interface. A clean REST API is usually more valuable in the long run than a kludgey API that may or may not be faster. I'm not discouraging the use of HEAD, just suggesting that you only use it if it's the "right" design.
If the information you need really i...
What parameters should I use in a Google Maps URL to go to a lat-lon?
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In May 2017 Google announced the Google Maps URLs API that allows to construct universal cross-platform links. Now you can open Google maps on web, Android or iOS using the same URL string in form:
https://www.google.com/maps/search/?api=1&parameters
There are several modes tha...
Sort a Map by values
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totally ripped this, but credited @CarterPage in the comments (it'll be in an open source project anyway). thanks so much.
– Nathan Beach
Sep 2 '15 at 3:07
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How do you simulate Mouse Click in C#?
...eness of the question, I thought people might benefit from an example that allows them to do more than just a left click suck a right or middle click or allow click and drag.
– Keith
Aug 19 '11 at 15:01
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