The Education Ecosystem Blog is a hub for in-depth development blogs and new technology announcements written by professional software engineers in the Education Ecosystem network
Python Quiz Answer: B) The method seed() sets the integer starting value used in generating random numbers. Call this function before calling any other random module function. Syntax Following is the syntax for seed() method:…
Python Quiz! Answer: In a few words the with statement allows you to executed code before and/or after a specific set of operations. For example if you open a file for reading and parsing no…
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:
|
1 2 3 4 5 |
[crayon-673570d98b259462574564 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…
Answer: Surprisingly to many, the above code will output bool(true) seeming to imply that the and operator is behaving instead as an or. The issue here is that the = operator takes precedence over the…
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…
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:
|
1 2 |
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…
Education EcosystemEducation Ecosystem is a decentralized learning ecosystem that teaches professionals and college students how to build real products.
Education Ecosystem © 2019.