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How to detect a loop in a linked list?
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Also need to do a null-check on fast.next before calling next again: if(fast.next!=null)fast=fast.next.next;
– cmptrgeekken
Apr 18 '10 at 17:27
12
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How to insert a line break before an element using CSS
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This didn't work for me, I used :before { content: ' '; display: block; } instead.
– Bogdanio
Jun 24 '15 at 13:34
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How to use filter, map, and reduce in Python 3
...javadba Are you sure in a "streaming application" you need to add the list call at all? I thought the meaning of "streaming" is "no list is created at all; process each element of the input fully before moving on to the next".
– Imperishable Night
Oct 5 '18 at ...
JavaScript isset() equivalent
...wo is that the hasOwnProperty method will check if the property exist physically on the object (the property is not inherited).
The in operator will check on all the properties reachable up in the prototype chain, e.g.:
var obj = { foo: 'bar'};
obj.hasOwnProperty('foo'); // true
obj.hasOwnPropert...
Underscore: sortBy() based on multiple attributes
... and quick-er solution that those already suggested. You can chain sortBy calls in order of least important property to most important property. In the code below I create a new array of patients sorted by Name within RoomNumber from the original array called patients.
var sortedPatients = _.cha...
How do I loop through or enumerate a JavaScript object?
... each object in javascript (actually a key-value pair) has a property called __proto__ or prototype. This property has a reference to its parent object. An object automatically inherits property from its parent. This is the reason of using hasOwnProperty, which signifies that we're interested i...
About “*.d.ts” in TypeScript
...ated from the js file, and if the js file knows nothing about d.ts. How to call the functions from d.ts in other ts files without the js file? I'm puzzled......
– user3221822
Jan 21 '14 at 1:51
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convert a JavaScript string variable to decimal/money
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Yes -- parseFloat.
parseFloat(document.getElementById(amtid4).innerHTML);
For formatting numbers, use toFixed:
var num = parseFloat(document.getElementById(amtid4).innerHTML).toFixed(2);
num is now a string with the number formatted with two decimal places.
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Get an object's class name at runtime
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@Subash a terser way to avoid casting to any is console.log(instance.constructor['name']);
– Nick Strupat
Sep 2 '16 at 7:47
1
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How do multiple clients connect simultaneously to one port, say 80, on a server? [duplicate]
...es only a single child-process to serve all the sockets then the server is called single-process/threaded and if the server uses many sub-processes to serve each socket by one sub-process then the server is called multi-process/threaded server. Note that irrespective of the server's type a server ca...