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How to convert a Map to List in Java?
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Map<String, String> m = new HashMap<String, String>();
m.put("Hello", "World");
m.put("Apple", "3.14");
m.put("Another", "Element");
The keys as a List can be obtained by creating a new ArrayList from a Set returned by the Map.keySet method:
List<String> list = new ArrayList<...
curl : (1) Protocol https not supported or disabled in libcurl
...-Type: application/json" --data-binary "{ \"name\":\"Curler\", \"text\": \"Hello from the command line\" }" instead of curl "http://localhost:3030/messages/" -H "Content-Type: application/json" --data-binary '{ "name":"Curler", "text": "Hello from the command line" }'... take note of the single and ...
How to set a value to a file input in HTML?
...elow is local to the JS script, so we are allowed to send it!
uploadFile({'hello!':'how are you?'});
So, what could you possibly use this for? I use it for uploading HTML5 canvas elements as jpg's. This saves the user the trouble of having to open a file input element, only to select the local, ...
How can I find an element by CSS class with XPath?
...
Match against one class that has whitespace.
<div class="hello "></div>
//div[normalize-space(@class)="hello"]
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fol...
possible EventEmitter memory leak detected
... console.log('error writing log: ' + err)
});
Logger.writeLog('Hello');
}
Now observe the correct way of adding the listener:
//Good: event listener is not in a loop
Logger.on('error', function (err) {
console.log('error writing log: ' + err)
});
for (var i = 0; i < 11; i++) {...
How to do a non-greedy match in grep?
...this might work for the viewers in 2020.
So suppose you have a line like "Hello my name is Jello".
Now you want to find the words that start with 'H' and end with 'o', with any number of characters in between. And we don't want lines we just want words. So for that we can use the expression:
grep ...
Simple way to repeat a String in java
...des a tidy way to do this in conjunction with Collections.nCopies:
// say hello 100 times
System.out.println(String.join("", Collections.nCopies(100, "hello")));
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How do I programmatically force an onchange event on an input?
... calling should onchange() work:
<input id="test1" name="test1" value="Hello" onchange="alert(this.value);"/>
<input type="button" onclick="document.getElementById('test1').onchange();" value="Say Hello"/>
Edit: The reason ele.onchange() didn't work was because I hadn't actually decla...
Fastest method to replace all instances of a character in a string [duplicate]
...eplaceAll("", "xyz");
// xyzxxyz
"aA".replaceAll("a", "b", true);
// bb
"Hello???".replaceAll("?", "!");
// Hello!!!
Let me know if you can break it, or you have something better, but make sure it can pass these 4 tests.
...
Can I multiply strings in Java to repeat sequences? [duplicate]
...for (int n = 0; n < 10; n++) {
System.out.println(repeat(n) + " Hello");
}
for (int n = 0; n < 10; n++) {
System.out.println(repeat(n, ":-) ") + " Hello");
}
}
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