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Pass props to parent component in React.js
...at child prop!: if the child has a prop, then it is because its parent provided that prop to the child! Why do you want the child to pass back the prop to the parent, while the parent obviously already has that prop?
Better implementation
Child: it really does not have to be more complicated than ...
Read text file into string array (and write)
... there is a bufio.Scanner API that can easily read lines from a file. Consider the following example from above, rewritten with Scanner:
package main
import (
"bufio"
"fmt"
"log"
"os"
)
// readLines reads a whole file into memory
// and returns a slice of its lines.
func readLine...
Received fatal alert: handshake_failure through SSLHandshakeException
...libraries would rely on the trust store used by the JVM for certificate validation. In most cases, this will be the cacerts file in the JRE_HOME/lib/security directory. If the location of the trust store has been specified using the JVM system property javax.net.ssl.trustStore, then the store in tha...
How many GCC optimization levels are there?
...
To be pedantic, there are 8 different valid -O options you can give to gcc, though there are some that mean the same thing.
The original version of this answer stated there were 7 options. GCC has since added -Og to bring the total to 8
From the man page:
-O ...
Declaring abstract method in TypeScript
... a parameter, change a parameters type or change the return type when overriding an abstract method?
– Vetterjack
Dec 5 '17 at 19:53
1
...
What is the Difference Between Mercurial and Git?
... been using git for some time now on Windows (with msysGit) and I like the idea of distributed source control. Just recently I've been looking at Mercurial (hg) and it looks interesting. However, I can't wrap my head around the differences between hg and git.
...
How to use glOrtho() in OpenGL?
...code every time the window is resized:
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(0.0f, windowWidth, windowHeight, 0.0f, 0.0f, 1.0f);
This will remap the OpenGL coordinates into the equivalent pixel values (X going from 0 to windowWidth and Y going from 0 to windowHeight). Note that I...
Show data on mouseover of circle
...han the edge as in that demo. I'm not finding any obvious reason why. jsfiddle.net/scottieb/JwaaV (tipsy at very bottom)
– ScottieB
May 29 '12 at 21:08
...
What 'sensitive information' could be disclosed when setting JsonRequestBehavior to AllowGet
... Not true unfortunately. CSRF attacks could be possible if the method has side effects (e.g. www.example.com/User/DeleteUser/32) as the request will include the cookies neccessary for authentication as they are coming from the victim's machine. [Authorize] will not save you from the attack detailed ...
Dynamically load JS inside JS [duplicate]
...e where I need to import an external JS file (under an IF condition) inside another javascript file.
13 Answers
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