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Array.push() if does not exist?

... it doesn't then just push the item into the array: var newItem = "NEW_ITEM_TO_ARRAY"; var array = ["OLD_ITEM_1", "OLD_ITEM_2"]; array.indexOf(newItem) === -1 ? array.push(newItem) : console.log("This item already exists"); console.log(array) ...
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How to do URL decoding in Java?

... { String result = java.net.URLDecoder.decode(url, StandardCharsets.UTF_8.name()); } catch (UnsupportedEncodingException e) { // not going to happen - value came from JDK's own StandardCharsets } Java 10 added direct support for Charset to the API, meaning there's no need to catch Unsuppor...
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Validate that end date is greater than start date with jQuery

... I had to modify it slightly to allow for blank end dates in my app, but this did the bulk. code if (value == 0) { return true; } else if (!/Invalid|NaN/... code – Frank Luke Jun 23 '11 at 14:48 ...
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Check if SQL Connection is Open or Closed

... as an enum and not turn it into a string..... – marc_s Aug 4 '11 at 15:19 4 Should've added usin...
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PHP Fatal error: Using $this when not in object context

... @Sarfraz No offense, but it is still wrong. You can call an instance method with ::. It is against E_STRICT, but it does work as long as the method body does not reference the instance scope, e.g. uses $this. Also, self::foo will not point to $this->foo. It references a clas...
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Java Serializable Object to Byte Array

...Object); out.flush(); byte[] yourBytes = bos.toByteArray(); ... } finally { try { bos.close(); } catch (IOException ex) { // ignore close exception } } Create an object from a byte array: ByteArrayInputStream bis = new ByteArrayInputStream(yourBytes); ObjectInput in = null; tr...
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Eclipse IDE for Java - Full Dark Theme

... Didn't really work for me, the background is off black and the majority of code is black so pretty unreadable :( – serenskye Mar 24 '14 at 9:45 ...
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Post JSON using Python Requests

...ost('http://httpbin.org/post', json={"key": "value"}) >>> r.status_code 200 >>> r.json() {'args': {}, 'data': '{"key": "value"}', 'files': {}, 'form': {}, 'headers': {'Accept': '*/*', 'Accept-Encoding': 'gzip, deflate', 'Connection': 'close', ...
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how to draw directed graphs using networkx in python?

...f edge not in red_edges] # Need to create a layout when doing # separate calls to draw nodes and edges pos = nx.spring_layout(G) nx.draw_networkx_nodes(G, pos, cmap=plt.get_cmap('jet'), node_color = values, node_size = 500) nx.draw_networkx_labels(G, pos) nx.draw_networkx_ed...
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100% width table overflowing div container [duplicate]

...d borders or cell spacing. Automatic (source)In this algorithm (which generally requires no more than two passes), the table's width is given by the width of its columns [, as determined by content] (and intervening borders).[...] This algorithm may be inefficient since it requires the user agent to...