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Check synchronously if file/directory exists in Node.js
...his question has changed over the years. The current answer is here at the top, followed by the various answers over the years in chronological order:
Current Answer
You can use fs.existsSync():
const fs = require("fs"); // Or `import fs from "fs";` with ESM
if (fs.existsSync(path)) {
// Do s...
Generate a random point within a circle (uniformly)
... circles. In this case rejection algorithm becomes not effective and first top algorithm is hard to generalize. And the corner case with one radius also is covered with your algorithm. We always generate radius as sqrt(random(min_radius^2, max_radius^2)) even when min_radius==max_radius.
...
How do you organize your version control repository?
...e making which are valid and speaks highly for your vast experience on the topic.
– VonC
Nov 20 '08 at 5:04
3
...
Why would one omit the close tag?
...isk having white space after it.
If you then use it as an include at the top of a document, you could end up inserting white space (i.e. content) before you attempt to send HTTP headers … which isn't allowed.
share
...
Is module __file__ attribute absolute or relative?
... showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg cla...
MySQL foreign key constraints, cascade delete
... showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg cla...
Simple explanation of clojure protocols
...of:
AddOperator => print(node.left) + '+' + print(node.right)
NotOperator => '!' + print(node)
func eval(node):
case node of:
AddOperator => eval(node.left) + eval(node.right)
NotOperator => !eval(node)
Now, if you want to add a new operation, say, type-checking, tha...
How to use HTML to print header and footer on every printed page of a document?
... of each printed page. The same would work for a header element, just set top:0 instead.
For example:
<div class="divFooter">UNCLASSIFIED</div>
CSS:
@media screen {
div.divFooter {
display: none;
}
}
@media print {
div.divFooter {
position: fixed;
bottom: 0;
}
}...
What is Hindley-Milner?
...istType = system.NewType("List", new[] { ItemType });
// Populate the top level typing environment (aka, the language's "builtins")
env[@bool.Id] = @bool;
env[@int.Id] = @int;
env[@string.Id] = @string;
env[ListType.Id] = env["nil"] = ListType;
//...
Action<object&g...
Why use symbols as hash keys in Ruby?
...
Great insight on the topic & First link in "Long answer" section is removed or migrated.
– Hbksagar
Dec 23 '14 at 17:06
2...