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Java Quiz! Answer: If you put the same key again then it will replace the old mapping because HashMap doesn’t allow duplicate keys. The same key will result in the same hashcode and will end…
Angular.JS Quiz Answer: The key to both is assigning the result of the function to a variable. To cleanup the timeout, just “.cancel()” it:
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[crayon-673f82c1cf820606788447 inline="true" class="language-js hljs"]<span class="hljs-keyword">var</span> customTimeout = $timeout(<span class="hljs-function"><span class="hljs-keyword">function</span> <span class="hljs-params">()</span> {</span> <span class="hljs-comment">// arbitrary code</span> }, <span class="hljs-number">55</span>); $timeout.cancel(customTimeout); |
[/crayon] The same applies to “$interval()”. To disable a watch, just…
Python Quiz! Answer: The above code will output [], and will not result in an IndexError. As one would expect, attempting to access a member of a list using an index that exceeds the number…
Learning is all about sustaining the different challenges in life. If you are learning new things constantly, you are on the right path of exploration. As the old saying goes, “There is no age for…
Answer: Service is like an Activity but has no interface. For example, for fetching information on weather, blank activity will not be created. Here Service will be used. It is also known as Background Service…
Answer: 1. Encapsulation Encapsulation is a mechanism by which developer could hide implementation behind an interface. Encapsulated code has two features: Instance variables are kept protected (usually with the private modifier). Getter and setter methods provide access…
Answer: div, p – Selects all <div> elements and all <p> elements div p – Selects all <p> elements that are anywhere inside a <div> element div > p – Selects all <p> elements where the immediate parent is…
Answer: The problem here is that strpos() returns the starting position index of $str1 in $str2 (if found), otherwise it returns false. So in this example, strpos() returns 0 (which is then coerced to false when referenced in the if statement). That’s why the code doesn’t work properly. The correct…
Answer: The output will be:
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location is null 1/1/0001 12:00:00 AM |
Although both variables are uninitialized, String is a reference type and DateTime is a value type. As a value type, an initialized DateTime variable is set to a default value of midnight of 1/1/1…
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