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Finding child element of parent pure javascript

...esire. Edit: Now that I think about it, you could just use querySelectorAll to get decendents of parent having a class name of child1: children = document.querySelectorAll('.parent .child1'); The difference between qS and qSA is that the latter returns all elements matching the selector, while...
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Turning off some legends in a ggplot

... You can use guide=FALSE in scale_..._...() to suppress legend. For your example you should use scale_colour_continuous() because length is continuous variable (not discrete). (p3 <- ggplot(mov, aes(year, rating, colour = length, shape = mpaa)) + sca...
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Maximum length of the textual representation of an IPv6 address?

I want to store the data returned by $_SERVER["REMOTE_ADDR"] in PHP into a DB field, pretty simple task, really. The problem is that I can't find any proper information about the maximum length of the textual representation of an IPv6 address, which is what a webserver provides through $_SERVER...
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How do I create a basic UIButton programmatically?

...height: 500) myButton.addTarget(self, action: #selector(pressedAction(_:)), for: .touchUpInside) self.view.addSubview( myButton) func pressedAction(_ sender: UIButton) { // do your stuff here print("you clicked on button \(sender.tag)") } SwiftUI for example you get the step by ...
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Rerender view on browser resize with React

...lobals window */ import React, { useState, useEffect } from 'react' import _debounce from 'lodash.debounce' const Example = () => { const [width, setWidth] = useState(window.innerWidth) useEffect(() => { const handleResize = _debounce(() => setWidth(window.innerWidth), 100) w...
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R cannot be resolved - Android error

I just downloaded and installed the new Android SDK. I wanted to create a simple application to test drive it. 108 Answers ...
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Hibernate show real SQL [duplicate]

...logger.org.hibernate.type=TRACE The first is equivalent to hibernate.show_sql=true, the second prints the bound parameters among other things. Reference Hibernate 3.5 Core Documentation 3.5. Logging Hibernate 4.1 Core Documentation 4.1. Logging ...
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How do I get the current date and time in PHP?

...e time would go by your server time. An easy workaround for this is to manually set the timezone by using date_default_timezone_set before the date() or time() functions are called to. I'm in Melbourne, Australia so I have something like this: date_default_timezone_set('Australia/Melbourne'); Or...
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How to append a char to a std::string?

... why do you consider += better than push_back? Is it just less typing or do you have another reason? – Glen Sep 24 '09 at 14:35 4 ...
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Can PHP cURL retrieve response headers AND body in a single request?

...R, 1); // ... $response = curl_exec($ch); // Then, after your curl_exec call: $header_size = curl_getinfo($ch, CURLINFO_HEADER_SIZE); $header = substr($response, 0, $header_size); $body = substr($response, $header_size); Warning: As noted in the comments below, this may not be reliable when used ...