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Showing posts from February, 2021

AngularJS : Difference Between The Observe And Observeandwatch Methods

Answer : $observe() is a method on the Attributes object, and as such, it can only be used to observe/watch the value change of a DOM attribute. It is only used/called inside directives. Use $observe when you need to observe/watch a DOM attribute that contains interpolation (i.e., {{}}'s). E.g., attr1="Name: {{name}}" , then in a directive: attrs.$observe('attr1', ...) . (If you try scope.$watch(attrs.attr1, ...) it won't work because of the {{}}s -- you'll get undefined .) Use $watch for everything else. $watch() is more complicated. It can observe/watch an "expression", where the expression can be either a function or a string. If the expression is a string, it is p a r s e ′ d ( i . e . , e v a l u a t e d a s a n A n g u l a r e x p r e s s i o n ) i n t o a f u n c t i o n . ( I t i s t h i s f u n c t i o n t h a t i s c a l l e d e v e r y d i g e s t c y c l e . ) T h e s t r i n g e x p r e s s i o n c a n n o t c o n t a

Online Gdb Compiler C+ Code Example

Example 1: c++ online compiler This two are good C ++ compilers : https : //www.onlinegdb.com/online_c++_compiler https : //www.programiz.com/cpp-programming/online-compiler/ Example 2: cpp online compiler Best Site With auto compile : https : //godbolt.org/z/nEo4j7

Calculate The Cumulative Distribution Function (CDF) In Python

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Answer : (It is possible that my interpretation of the question is wrong. If the question is how to get from a discrete PDF into a discrete CDF, then np.cumsum divided by a suitable constant will do if the samples are equispaced. If the array is not equispaced, then np.cumsum of the array multiplied by the distances between the points will do.) If you have a discrete array of samples, and you would like to know the CDF of the sample, then you can just sort the array. If you look at the sorted result, you'll realize that the smallest value represents 0% , and largest value represents 100 %. If you want to know the value at 50 % of the distribution, just look at the array element which is in the middle of the sorted array. Let us have a closer look at this with a simple example: import matplotlib.pyplot as plt import numpy as np # create some randomly ddistributed data: data = np.random.randn(10000) # sort the data: data_sorted = np.sort(data) # calculate the proportional

Can Minecraft Pocket Edition Play With A Desktop Minecraft?

Answer : No, you can't. They're entirely different games. To expand a bit on BlaXpirit's answer, the PC version, the Pocket Edition, and the XBox 360 Edition are all separate games, with separate features and in separate states of development. The games are written in different languages for different platforms, and the XBox version is actually developed by a different company than Minecraft is, so it is (unfortunately) very unlikely that these versions will ever be able to join each other in online play. There are now two different versions of Minecraft on PC The java version, the original one The windows 10 version, which can play along the Pocket Editions on Android and iOS You cannot join their Java version on PC, but you surely can on the Windows 10 version. Of course, they need Windows 10 on their PC to install it It is possible to get the Windows 10 version for free if you have already existing Minecraft accounts, just go on the website in account man

Can't Get The Target Attributes Of Material-ui Select React Component

Answer : Update 2 In response to your comments: As per the material-ui docs, getting back the touchtap event on option element rather than the select element is expected. If you want the id and name of the element, I would suggest binding the variables to the callback: The onchange method in the parent component: _onChange(id, name, evt, key, payload) { console.log(id); //id of select console.log(name); //name of name console.log(payload); //value of selected option } And when you attach it to the select component, you need to use bind <Select value={this.props.test} name={"test"} id={"test"} onChange={this.props.onChange.bind(null,"id","name")} hintText={"Select a fitch rating service"}> Update Here are the react event docs. Under the event-pooling you will find reference to the use of e.persists() in the block quote. The explanation given in this issue is that React pools t

403 Forbidden Nginx Centos 7 Code Example

Example: nginx 403 forbidden $> chown www-data:www-data /var/www $> chmod 744 /var/www

Cmake Option()

Provide an option that the user can optionally select. option(<variable> "<help_text>" [value]) Provides an option for the user to select as ON or OFF . If no initial <value> is provided, OFF is used. If <variable> is already set as a normal or cache variable, then the command does nothing (see policy CMP0077 ). If you have options that depend on the values of other options, see the module help for CMakeDependentOption .

Bootstrap 4 Show Modal Jquery Code Example

Example 1: bootstrap show modal jquery $('#myModal').modal('toggle'); $('#myModal').modal('show'); $('#myModal').modal('hide'); Example 2: open modal in jqwuery $("#myModal").modal('show') Example 3: open modal in jqwuery $("#myModal").modal() Example 4: show modal in bootstrap 4 < button type = " button " class = " btn btn-primary " data-toggle = " modal " data-target = " #exampleModal " data-whatever = " @mdo " > Open modal for @mdo </ button > < button type = " button " class = " btn btn-primary " data-toggle = " modal " data-target = " #exampleModal " data-whatever = " @fat " > Open modal for @fat </ button > < button type = " button " class = " btn btn-primary " data-toggle = " modal " data-target = " #exampleModal "

Change Visual Studio Background Color Code Example

Example: how to change to dark mode visual studio Tools Options Environment General Change Color theme selection to dark OK

Topcoder Fenwick Tree Code Example

Example: dfenwick tree code c++ // C++ code to demonstrate operations of Binary Index Tree # include <iostream> using namespace std ; /* n --> No. of elements present in input array. BITree[0..n] --> Array that represents Binary Indexed Tree. arr[0..n-1] --> Input array for which prefix sum is evaluated. */ // Returns sum of arr[0..index]. This function assumes // that the array is preprocessed and partial sums of // array elements are stored in BITree[]. int getSum ( int BITree [ ] , int index ) { int sum = 0 ; // Iniialize result // index in BITree[] is 1 more than the index in arr[] index = index + 1 ; // Traverse ancestors of BITree[index] while ( index > 0 ) { // Add current element of BITree to sum sum += BITree [ index ] ; // Move index to parent node in getSum View index -= index & ( - index ) ; } return su

AutoEllipsis=true Affects The Vertical Positioning Of The Text

Answer : I see it. This looks like a limitation in the underlying winapi, DrawTextEx(). Which doesn't get a lot of help from the Label class, it doesn't turn on the DT_SINGLELINE option (aka TextFormatFlags.SingleLine) since it is capable of rendering multiple lines. DrawTextEx() documents that this is required to get vertically centered text (DT_VCENTER). So the real bug is that it shouldn't be centered at all :) Do note that you do get centered text when you grow the label vertically. The simplest way to work around it is by setting the label's UseCompatibleTextRendering property to True.

20 Second Timer Code Example

Example 1: 20 minute timer for good eyesight every 20 minutes look out the window at something 20 feet away for 20 seconds Example 2: 20 minute timer For the 20/20/20 rule you can also close your eyes for 20 seconds and get the same results because it relaxes the mucles in your eyes.

Beacon Tower Minecraft Code Example

Example: how many iron blocks for a full beacon You need 81 iron blocks for a full beacon

C Warning Implicit Declaration Of Function 'exit'

Answer : Add: #include <stdlib.h> to the top of your program. Do you have this preprocessor? If not, add it. #include <stdlib.h> exit() is a library function, the respecive prototypes are present in the stdlib.h header file, inoder to call the process to specified code for exit function, you need to attach the as #include stdlib.h header in your program. that is the reason we should add the stdlib.h header. eventhough you can run the program, but it shows the warning message like below: warning: incompatible implicit declaration of built-in function ‘exit’ [enabled by default] but, this kind of program not recommended, we need to take care of what we are given in the program,be cautious. warning may leads runtime error.

How To Put Code In Comments Shortcut Visual Studio Code Example

Example: shortcut comment visual studio Comment Code Block Ctrl + K + C / Ctrl + K + U If you select a block of code and use the key sequence Ctrl + K + C , you 'll comment out the section of code . Ctrl + K + U will uncomment the code .

CAP Theorem - Availability And Partition Tolerance

Answer : Consistency means that data is the same across the cluster, so you can read or write from/to any node and get the same data. Availability means the ability to access the cluster even if a node in the cluster goes down. Partition tolerance means that the cluster continues to function even if there is a "partition" (communication break) between two nodes (both nodes are up, but can't communicate). In order to get both availability and partition tolerance, you have to give up consistency. Consider if you have two nodes, X and Y, in a master-master setup. Now, there is a break between network communication between X and Y, so they can't sync updates. At this point you can either: A) Allow the nodes to get out of sync (giving up consistency), or B) Consider the cluster to be "down" (giving up availability) All the combinations available are: CA - data is consistent between all nodes - as long as all nodes are online - and you can read/