Use \n
for a line break and \t
if you want to insert a tab.
You can also use some XML tags for basic formatting: <b>
for bold text, <i>
for italics, and <u>
for underlined text.
Other formatting options are shown in this article on the Android Developers' site:
https://developer.android.com/guide/topics/resources/string-resource.html#FormattingAndStyling
I see that you tagged bash, but Perl would also be a good way to do this:
perl -p -e '`chmod 755 $_`' file.txt
You could also apply a regex to make sure you're getting the right files, e.g. to only process .txt files:
perl -p -e 'if(/\.txt$/) `chmod 755 $_`' file.txt
To "preview" what's happening, just replace the backticks with double quotes and prepend print
:
perl -p -e 'if(/\.txt$/) print "chmod 755 $_"' file.txt
If your task is not to invent the line-by-line reading function, but just to read the file line-by-line, you may use a typical code snippet involving the getline()
function (see the manual page here):
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
int main(void)
{
FILE * fp;
char * line = NULL;
size_t len = 0;
ssize_t read;
fp = fopen("/etc/motd", "r");
if (fp == NULL)
exit(EXIT_FAILURE);
while ((read = getline(&line, &len, fp)) != -1) {
printf("Retrieved line of length %zu:\n", read);
printf("%s", line);
}
fclose(fp);
if (line)
free(line);
exit(EXIT_SUCCESS);
}
Use str.join
:
In [27]: mylist = ['10', '12', '14']
In [28]: print '\n'.join(mylist)
10
12
14
\n didn't work for me. So I used <br></br>
HTML tag
<string name="message_register_success">
Sign up is complete. <br></br>
Enjoy a new shopping life at MageMobile!!
</string>
Just use a wrapper div with "float: left" and put boxes inside also containing float: left:
CSS:
wrapperline{
width: 300px;
float: left;
height: 60px;
background-color:#CCCCCC;}
.boxinside{
width: 50px;
float: left;
height: 50px;
margin: 5px;
background-color:#9C0;
float:left;}
HTML:
<div class="wrapperline">
<div class="boxinside">Box 1</div>
<div class="boxinside">Box 1</div>
<div class="boxinside">Box 1</div>
<div class="boxinside">Box 1</div>
<div class="boxinside">Box 1</div>
</div>
You can do it something like this:
<style>
.background {
background-color: #BCBCBC;
width: 100px;
height: 50px;
padding: 0;
margin: 0
}
.line1 {
width: 112px;
height: 47px;
border-bottom: 1px solid red;
-webkit-transform:
translateY(-20px)
translateX(5px)
rotate(27deg);
position: absolute;
/* top: -20px; */
}
.line2 {
width: 112px;
height: 47px;
border-bottom: 1px solid green;
-webkit-transform:
translateY(20px)
translateX(5px)
rotate(-26deg);
position: absolute;
top: -33px;
left: -13px;
}
</style>
<div class="background">
<div class="line1"></div>
<div class="line2"></div>
</div>
Here is a jsfiddle.
Improved version of answer for your purpose.
Using formula from: https://en.wikipedia.org/wiki/Line%E2%80%93line_intersection
def findIntersection(x1,y1,x2,y2,x3,y3,x4,y4):
px= ( (x1*y2-y1*x2)*(x3-x4)-(x1-x2)*(x3*y4-y3*x4) ) / ( (x1-x2)*(y3-y4)-(y1-y2)*(x3-x4) )
py= ( (x1*y2-y1*x2)*(y3-y4)-(y1-y2)*(x3*y4-y3*x4) ) / ( (x1-x2)*(y3-y4)-(y1-y2)*(x3-x4) )
return [px, py]
String.replaceAll("[\n\r]", "");
Responsive, transparent background, variable height and style of divider, variable position of text, adjustable distance between divider and text. Can also be applied multiple times with different selectors for multiple divider styles in same project.
SCSS below.
Markup (HTML):
<div class="divider" text-position="right">Divider</div>
CSS:
.divider {
display: flex;
align-items: center;
padding: 0 1rem;
}
.divider:before,
.divider:after {
content: '';
flex: 0 1 100%;
border-bottom: 5px dotted #ccc;
margin: 0 1rem;
}
.divider:before {
margin-left: 0;
}
.divider:after {
margin-right: 0;
}
.divider[text-position="right"]:after,
.divider[text-position="left"]:before {
content: none;
}
Without text-position
it defaults to center.
Demo:
.divider {_x000D_
display: flex;_x000D_
align-items: center;_x000D_
padding: 0 1rem;_x000D_
}_x000D_
_x000D_
.divider:before,_x000D_
.divider:after {_x000D_
content: '';_x000D_
flex: 0 1 100%;_x000D_
border-bottom: 5px dotted #ccc;_x000D_
margin: 0 1rem;_x000D_
}_x000D_
_x000D_
.divider:before {_x000D_
margin-left: 0;_x000D_
}_x000D_
_x000D_
.divider:after {_x000D_
margin-right: 0;_x000D_
}_x000D_
_x000D_
.divider[text-position="right"]:after,_x000D_
.divider[text-position="left"]:before {_x000D_
content: none;_x000D_
}
_x000D_
<span class="divider" text-position="left">Divider</span>_x000D_
<h2 class="divider">Divider</h2>_x000D_
<div class="divider" text-position="right">Divider</div>
_x000D_
And SCSS, to modify it quickly:
$divider-selector : ".divider";
$divider-border-color: rgba(0,0,0,.21);
$divider-padding : 1rem;
$divider-border-width: 1px;
$divider-border-style: solid;
$divider-max-width : 100%;
#{$divider-selector} {
display: flex;
align-items: center;
padding: 0 $divider-padding;
max-width: $divider-max-width;
margin-left: auto;
margin-right: auto;
&:before,
&:after {
content: '';
flex: 0 1 100%;
border-bottom: $divider-border-width $divider-border-style $divider-border-color;
margin: 0 $divider-padding;
transform: translateY(#{$divider-border-width} / 2)
}
&:before {
margin-left: 0;
}
&:after {
margin-right: 0;
}
&[text-position="right"]:after,
&[text-position="left"]:before {
content: none;
}
}
to_skip = ("bad", "naughty")
out_handle = open("testout", "w")
with open("testin", "r") as handle:
for line in handle:
if set(line.split(" ")).intersection(to_skip):
continue
out_handle.write(line)
out_handle.close()
you mentioned "entire line" , so i assumed mystring is the entire line.
if "token" in mystring:
print(mystring)
however if you want to just get "token qwerty",
>>> mystring="""
... qwertyuiop
... asdfghjkl
...
... zxcvbnm
... token qwerty
...
... asdfghjklñ
... """
>>> for item in mystring.split("\n"):
... if "token" in item:
... print (item.strip())
...
token qwerty
Personally I like the replacement function provided by Symfony's var dumper component
Install with composer require symfony/var-dumper
and just use dump($var)
It takes care of the rest. I believe there's also a bit of JS injected there to allow you to interact with the output a bit.
Example from this gist
func readLine(path string) {
inFile, err := os.Open(path)
if err != nil {
fmt.Println(err.Error() + `: ` + path)
return
}
defer inFile.Close()
scanner := bufio.NewScanner(inFile)
for scanner.Scan() {
fmt.Println(scanner.Text()) // the line
}
}
but this gives an error when there is a line that larger than Scanner's buffer.
When that happened, what I do is use reader := bufio.NewReader(inFile)
create and concat my own buffer either using ch, err := reader.ReadByte()
or len, err := reader.Read(myBuffer)
Another way that I use (replace os.Stdin with file like above), this one concats when lines are long (isPrefix) and ignores empty lines:
func readLines() []string {
r := bufio.NewReader(os.Stdin)
bytes := []byte{}
lines := []string{}
for {
line, isPrefix, err := r.ReadLine()
if err != nil {
break
}
bytes = append(bytes, line...)
if !isPrefix {
str := strings.TrimSpace(string(bytes))
if len(str) > 0 {
lines = append(lines, str)
bytes = []byte{}
}
}
}
if len(bytes) > 0 {
lines = append(lines, string(bytes))
}
return lines
}
<description><![CDATA[first line<br/>second line<br/>]]></description>
If you are using gvim, you could just hit Ctrl + Home to go the first line. Similarly, Ctrl + End goes to the last line.
I just extended the CanvasRenderingContext2D adding two functions: mlFillText and mlStrokeText.
You can find the last version in GitHub:
With this functions you can fill / stroke miltiline text in a box. You can align the text verticaly and horizontaly. (It takes in account \n's and can also justify the text).
The prototypes are:
function mlFillText(text,x,y,w,h,vAlign,hAlign,lineheight); function mlStrokeText(text,x,y,w,h,vAlign,hAlign,lineheight);
Where vAlign can be: "top", "center" or "button" And hAlign can be: "left", "center", "right" or "justify"
You can test the lib here: http://jsfiddle.net/4WRZj/1/
Here is the code of the library:
// Library: mltext.js
// Desciption: Extends the CanvasRenderingContext2D that adds two functions: mlFillText and mlStrokeText.
//
// The prototypes are:
//
// function mlFillText(text,x,y,w,h,vAlign,hAlign,lineheight);
// function mlStrokeText(text,x,y,w,h,vAlign,hAlign,lineheight);
//
// Where vAlign can be: "top", "center" or "button"
// And hAlign can be: "left", "center", "right" or "justify"
// Author: Jordi Baylina. (baylina at uniclau.com)
// License: GPL
// Date: 2013-02-21
function mlFunction(text, x, y, w, h, hAlign, vAlign, lineheight, fn) {
text = text.replace(/[\n]/g, " \n ");
text = text.replace(/\r/g, "");
var words = text.split(/[ ]+/);
var sp = this.measureText(' ').width;
var lines = [];
var actualline = 0;
var actualsize = 0;
var wo;
lines[actualline] = {};
lines[actualline].Words = [];
i = 0;
while (i < words.length) {
var word = words[i];
if (word == "\n") {
lines[actualline].EndParagraph = true;
actualline++;
actualsize = 0;
lines[actualline] = {};
lines[actualline].Words = [];
i++;
} else {
wo = {};
wo.l = this.measureText(word).width;
if (actualsize === 0) {
while (wo.l > w) {
word = word.slice(0, word.length - 1);
wo.l = this.measureText(word).width;
}
if (word === "") return; // I can't fill a single character
wo.word = word;
lines[actualline].Words.push(wo);
actualsize = wo.l;
if (word != words[i]) {
words[i] = words[i].slice(word.length, words[i].length);
} else {
i++;
}
} else {
if (actualsize + sp + wo.l > w) {
lines[actualline].EndParagraph = false;
actualline++;
actualsize = 0;
lines[actualline] = {};
lines[actualline].Words = [];
} else {
wo.word = word;
lines[actualline].Words.push(wo);
actualsize += sp + wo.l;
i++;
}
}
}
}
if (actualsize === 0) lines[actualline].pop();
lines[actualline].EndParagraph = true;
var totalH = lineheight * lines.length;
while (totalH > h) {
lines.pop();
totalH = lineheight * lines.length;
}
var yy;
if (vAlign == "bottom") {
yy = y + h - totalH + lineheight;
} else if (vAlign == "center") {
yy = y + h / 2 - totalH / 2 + lineheight;
} else {
yy = y + lineheight;
}
var oldTextAlign = this.textAlign;
this.textAlign = "left";
for (var li in lines) {
var totallen = 0;
var xx, usp;
for (wo in lines[li].Words) totallen += lines[li].Words[wo].l;
if (hAlign == "center") {
usp = sp;
xx = x + w / 2 - (totallen + sp * (lines[li].Words.length - 1)) / 2;
} else if ((hAlign == "justify") && (!lines[li].EndParagraph)) {
xx = x;
usp = (w - totallen) / (lines[li].Words.length - 1);
} else if (hAlign == "right") {
xx = x + w - (totallen + sp * (lines[li].Words.length - 1));
usp = sp;
} else { // left
xx = x;
usp = sp;
}
for (wo in lines[li].Words) {
if (fn == "fillText") {
this.fillText(lines[li].Words[wo].word, xx, yy);
} else if (fn == "strokeText") {
this.strokeText(lines[li].Words[wo].word, xx, yy);
}
xx += lines[li].Words[wo].l + usp;
}
yy += lineheight;
}
this.textAlign = oldTextAlign;
}
(function mlInit() {
CanvasRenderingContext2D.prototype.mlFunction = mlFunction;
CanvasRenderingContext2D.prototype.mlFillText = function (text, x, y, w, h, vAlign, hAlign, lineheight) {
this.mlFunction(text, x, y, w, h, hAlign, vAlign, lineheight, "fillText");
};
CanvasRenderingContext2D.prototype.mlStrokeText = function (text, x, y, w, h, vAlign, hAlign, lineheight) {
this.mlFunction(text, x, y, w, h, hAlign, vAlign, lineheight, "strokeText");
};
})();
And here is the use example:
var c = document.getElementById("myCanvas");
var ctx = c.getContext("2d");
var T = "This is a very long line line with a CR at the end.\n This is the second line.\nAnd this is the last line.";
var lh = 12;
ctx.lineWidth = 1;
ctx.mlFillText(T, 10, 10, 100, 100, 'top', 'left', lh);
ctx.strokeRect(10, 10, 100, 100);
ctx.mlFillText(T, 110, 10, 100, 100, 'top', 'center', lh);
ctx.strokeRect(110, 10, 100, 100);
ctx.mlFillText(T, 210, 10, 100, 100, 'top', 'right', lh);
ctx.strokeRect(210, 10, 100, 100);
ctx.mlFillText(T, 310, 10, 100, 100, 'top', 'justify', lh);
ctx.strokeRect(310, 10, 100, 100);
ctx.mlFillText(T, 10, 110, 100, 100, 'center', 'left', lh);
ctx.strokeRect(10, 110, 100, 100);
ctx.mlFillText(T, 110, 110, 100, 100, 'center', 'center', lh);
ctx.strokeRect(110, 110, 100, 100);
ctx.mlFillText(T, 210, 110, 100, 100, 'center', 'right', lh);
ctx.strokeRect(210, 110, 100, 100);
ctx.mlFillText(T, 310, 110, 100, 100, 'center', 'justify', lh);
ctx.strokeRect(310, 110, 100, 100);
ctx.mlFillText(T, 10, 210, 100, 100, 'bottom', 'left', lh);
ctx.strokeRect(10, 210, 100, 100);
ctx.mlFillText(T, 110, 210, 100, 100, 'bottom', 'center', lh);
ctx.strokeRect(110, 210, 100, 100);
ctx.mlFillText(T, 210, 210, 100, 100, 'bottom', 'right', lh);
ctx.strokeRect(210, 210, 100, 100);
ctx.mlFillText(T, 310, 210, 100, 100, 'bottom', 'justify', lh);
ctx.strokeRect(310, 210, 100, 100);
ctx.mlStrokeText("Yo can also use mlStrokeText!", 0 , 310 , 420, 30, 'center', 'center', lh);
js-graph.it supports this use case, as seen by its getting started guide, supporting dragging elements without connection overlaps. Doesn't seem like it supports editing/creating connections. Doesn't seem it is maintained anymore.
Try to double-check your localizations. Possible, you trying to edit one file (localization), but actually program using another, just like in my case. The default system language is russian, while I trying to edit english localization.
In my case, working solution is to use "\n" as line separator:
<string name="string_one">line one.
\nline two;
\nline three.</string>
grep -nr "search string" directory
This gives you the line with the line number.
Well you would need to get a file with JFileChooser and then read through the lines of the file using a scanner and the hasNext() function
http://docs.oracle.com/javase/7/docs/api/javax/swing/JFileChooser.html
once you do that you can save the line into a variable and manipulate the contents.
Here is a solution written in golang. The method is similar to some other answers posted here, but not quite the same. It is easy to implement, and has been tested. Here are the steps:
The values for A, B, and C for the quadratic are derived here, where (n-et) and (m-dt) are the equations for the line's x and y coordinates, respectively. r is the radius of the circle.
(n-et)(n-et) + (m-dt)(m-dt) = rr
nn - 2etn + etet + mm - 2mdt + dtdt = rr
(ee+dd)tt - 2(en + dm)t + nn + mm - rr = 0
Therefore A = ee+dd, B = - 2(en + dm), and C = nn + mm - rr.
Here is the golang code for the function:
package geom
import (
"math"
)
// SegmentCircleIntersection return points of intersection between a circle and
// a line segment. The Boolean intersects returns true if one or
// more solutions exist. If only one solution exists,
// x1 == x2 and y1 == y2.
// s1x and s1y are coordinates for one end point of the segment, and
// s2x and s2y are coordinates for the other end of the segment.
// cx and cy are the coordinates of the center of the circle and
// r is the radius of the circle.
func SegmentCircleIntersection(s1x, s1y, s2x, s2y, cx, cy, r float64) (x1, y1, x2, y2 float64, intersects bool) {
// (n-et) and (m-dt) are expressions for the x and y coordinates
// of a parameterized line in coordinates whose origin is the
// center of the circle.
// When t = 0, (n-et) == s1x - cx and (m-dt) == s1y - cy
// When t = 1, (n-et) == s2x - cx and (m-dt) == s2y - cy.
n := s2x - cx
m := s2y - cy
e := s2x - s1x
d := s2y - s1y
// lineFunc checks if the t parameter is in the segment and if so
// calculates the line point in the unshifted coordinates (adds back
// cx and cy.
lineFunc := func(t float64) (x, y float64, inBounds bool) {
inBounds = t >= 0 && t <= 1 // Check bounds on closed segment
// To check bounds for an open segment use t > 0 && t < 1
if inBounds { // Calc coords for point in segment
x = n - e*t + cx
y = m - d*t + cy
}
return
}
// Since we want the points on the line distance r from the origin,
// (n-et)(n-et) + (m-dt)(m-dt) = rr.
// Expanding and collecting terms yeilds the following quadratic equation:
A, B, C := e*e+d*d, -2*(e*n+m*d), n*n+m*m-r*r
D := B*B - 4*A*C // discriminant of quadratic
if D < 0 {
return // No solution
}
D = math.Sqrt(D)
var p1In, p2In bool
x1, y1, p1In = lineFunc((-B + D) / (2 * A)) // First root
if D == 0.0 {
intersects = p1In
x2, y2 = x1, y1
return // Only possible solution, quadratic has one root.
}
x2, y2, p2In = lineFunc((-B - D) / (2 * A)) // Second root
intersects = p1In || p2In
if p1In == false { // Only x2, y2 may be valid solutions
x1, y1 = x2, y2
} else if p2In == false { // Only x1, y1 are valid solutions
x2, y2 = x1, y1
}
return
}
I tested it with this function, which confirms that solution points are within the line segment and on the circle. It makes a test segment and sweeps it around the given circle:
package geom_test
import (
"testing"
. "**put your package path here**"
)
func CheckEpsilon(t *testing.T, v, epsilon float64, message string) {
if v > epsilon || v < -epsilon {
t.Error(message, v, epsilon)
t.FailNow()
}
}
func TestSegmentCircleIntersection(t *testing.T) {
epsilon := 1e-10 // Something smallish
x1, y1 := 5.0, 2.0 // segment end point 1
x2, y2 := 50.0, 30.0 // segment end point 2
cx, cy := 100.0, 90.0 // center of circle
r := 80.0
segx, segy := x2-x1, y2-y1
testCntr, solutionCntr := 0, 0
for i := -100; i < 100; i++ {
for j := -100; j < 100; j++ {
testCntr++
s1x, s2x := x1+float64(i), x2+float64(i)
s1y, s2y := y1+float64(j), y2+float64(j)
sc1x, sc1y := s1x-cx, s1y-cy
seg1Inside := sc1x*sc1x+sc1y*sc1y < r*r
sc2x, sc2y := s2x-cx, s2y-cy
seg2Inside := sc2x*sc2x+sc2y*sc2y < r*r
p1x, p1y, p2x, p2y, intersects := SegmentCircleIntersection(s1x, s1y, s2x, s2y, cx, cy, r)
if intersects {
solutionCntr++
//Check if points are on circle
c1x, c1y := p1x-cx, p1y-cy
deltaLen1 := (c1x*c1x + c1y*c1y) - r*r
CheckEpsilon(t, deltaLen1, epsilon, "p1 not on circle")
c2x, c2y := p2x-cx, p2y-cy
deltaLen2 := (c2x*c2x + c2y*c2y) - r*r
CheckEpsilon(t, deltaLen2, epsilon, "p2 not on circle")
// Check if points are on the line through the line segment
// "cross product" of vector from a segment point to the point
// and the vector for the segment should be near zero
vp1x, vp1y := p1x-s1x, p1y-s1y
crossProd1 := vp1x*segy - vp1y*segx
CheckEpsilon(t, crossProd1, epsilon, "p1 not on line ")
vp2x, vp2y := p2x-s1x, p2y-s1y
crossProd2 := vp2x*segy - vp2y*segx
CheckEpsilon(t, crossProd2, epsilon, "p2 not on line ")
// Check if point is between points s1 and s2 on line
// This means the sign of the dot prod of the segment vector
// and point to segment end point vectors are opposite for
// either end.
wp1x, wp1y := p1x-s2x, p1y-s2y
dp1v := vp1x*segx + vp1y*segy
dp1w := wp1x*segx + wp1y*segy
if (dp1v < 0 && dp1w < 0) || (dp1v > 0 && dp1w > 0) {
t.Error("point not contained in segment ", dp1v, dp1w)
t.FailNow()
}
wp2x, wp2y := p2x-s2x, p2y-s2y
dp2v := vp2x*segx + vp2y*segy
dp2w := wp2x*segx + wp2y*segy
if (dp2v < 0 && dp2w < 0) || (dp2v > 0 && dp2w > 0) {
t.Error("point not contained in segment ", dp2v, dp2w)
t.FailNow()
}
if s1x == s2x && s2y == s1y { //Only one solution
// Test that one end of the segment is withing the radius of the circle
// and one is not
if seg1Inside && seg2Inside {
t.Error("Only one solution but both line segment ends inside")
t.FailNow()
}
if !seg1Inside && !seg2Inside {
t.Error("Only one solution but both line segment ends outside")
t.FailNow()
}
}
} else { // No intersection, check if both points outside or inside
if (seg1Inside && !seg2Inside) || (!seg1Inside && seg2Inside) {
t.Error("No solution but only one point in radius of circle")
t.FailNow()
}
}
}
}
t.Log("Tested ", testCntr, " examples and found ", solutionCntr, " solutions.")
}
Here is the output of the test:
=== RUN TestSegmentCircleIntersection
--- PASS: TestSegmentCircleIntersection (0.00s)
geom_test.go:105: Tested 40000 examples and found 7343 solutions.
Finally, the method is easily extendable to the case of a ray starting at one point, going through the other and extending to infinity, by only testing if t > 0 or t < 1 but not both.
How about this?
fscanf(file,"%d %d %d %d %d %d %d",&line1_1,&line1_2, &line1_3, &line2_1, &line2_2, &line3_1, &line3_2);
In this case spaces in fscanf
match multiple occurrences of any whitespace until the next token in found.
You could use PHP constant:
$array = explode(PHP_EOL, $text);
additional notes:
1. For me this is the easiest and the safest way because it is cross platform compatible (Windows/Linux etc.)
2. It is better to use PHP CONSTANT whenever you can for faster execution
Yup, as everyone's saying, line-height
is the thing.
Any font you are using, a mid-height character (such as a or ¦, not going through the upper or lower) should go with the same height-length at line-height: 0.6
to 0.65
.
<div style="line-height: 0.65; font-family: 'Fira Code', monospace, sans-serif">_x000D_
aaaaa<br>_x000D_
aaaaa<br>_x000D_
aaaaa<br>_x000D_
aaaaa<br>_x000D_
aaaaa_x000D_
</div>_x000D_
<br>_x000D_
<br>_x000D_
_x000D_
<div style="line-height: 0.6; font-family: 'Fira Code', monospace, sans-serif">_x000D_
¦¦¦¦¦¦¦¦¦¦<br>_x000D_
¦¦¦¦¦¦¦¦¦¦<br>_x000D_
¦¦¦¦¦¦¦¦¦¦<br>_x000D_
¦¦¦¦¦¦¦¦¦¦<br>_x000D_
¦¦¦¦¦¦¦¦¦¦<br>_x000D_
¦¦¦¦¦¦¦¦¦¦<br>_x000D_
¦¦¦¦¦¦¦¦¦¦<br>_x000D_
¦¦¦¦¦¦¦¦¦¦<br>_x000D_
¦¦¦¦¦¦¦¦¦¦<br>_x000D_
¦¦¦¦¦¦¦¦¦¦_x000D_
</div>_x000D_
<br>_x000D_
<br>_x000D_
<strong>BUT</strong>_x000D_
<br>_x000D_
<br>_x000D_
<div style="line-height: 0.65; font-family: 'Fira Code', monospace, sans-serif">_x000D_
ddd<br>_x000D_
ƒƒƒ<br>_x000D_
ggg_x000D_
</div>
_x000D_
I searched for a one line solution to read specific line from a file. Here my solution:
echo file('dayInt.txt')[1]
I think this is the simplest solution:
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item
android:gravity="center">
<shape android:shape="rectangle">
<size android:width="1dp" />
<solid android:color="#0000FF" />
</shape>
</item>
</layer-list>
Line continuations also can be achieved through clever use of syntax.
In the case of echo
:
# echo '-n' flag prevents trailing <CR>
echo -n "This is my one-line statement" ;
echo -n " that I would like to make."
This is my one-line statement that I would like to make.
In the case of vars:
outp="This is my one-line statement" ;
outp+=" that I would like to make." ;
echo -n "${outp}"
This is my one-line statement that I would like to make.
Another approach in the case of vars:
outp="This is my one-line statement" ;
outp="${outp} that I would like to make." ;
echo -n "${outp}"
This is my one-line statement that I would like to make.
Voila!
Let's say you have these lines of code:
test line one
test line two
test line three
test line four
Using Search and Replace Ctrl+H with Regex let's find this: ^
and replace it with "
, we'll have this:
"test line one
"test line two
"test line three
"test line four
Now let's search this: $
and replace it with "
, now we'll have this:
"test line one"
"test line two"
"test line three"
"test line four"
file = '/path/to/file_to_be_read.txt'
with open(file) as f:
print f.readlines()[26]
print f.readlines()[30]
Using the with statement, this opens the file, prints lines 26 and 30, then closes the file. Simple!
LEFT JOIN
and RIGHT JOIN
are types of OUTER JOIN
s.
INNER JOIN
is the default -- rows from both tables must match the join condition.
I had the same problem to run Windows IIS image using docker for Windows. Reading the Mohammad Trabelsi response above I realised that to solve my problem I needed to switch my containers (on docker) for Windows containers.
To do this:
Given this route
app.get('/hi/:param1', function(req,res){} );
and given this URL
http://www.google.com/hi/there?qs1=you&qs2=tube
You will have:
req.query
{
qs1: 'you',
qs2: 'tube'
}
req.params
{
param1: 'there'
}
http://sourceforge.net/projects/pywin32/files/ - 3rd .exe down
If you are using Python 3 it might be because you are typing Tkinter
not tkinter
Semantically, you're probably looking for the one-liner
new Date().toLocaleString()
which formats the date in the locale of the user.
If you're really looking for a specific way to format dates, I recommend the moment.js library.
Apparently it does not and I didn't quite expect it would. HOWEVER Ivan brings up a good possibility that has escaped Android people.
What is the purpose of an emulator? to EMULATE, right? I don't see why for testing purposes -provided the tester understands the limitations- the emulator might not add a Wifi emulator.
It could for example emulate WiFi access by using the underlying internet connection of the host. Obviously testing WPA/WEP differencess would not make sense but at least it could toggle access via WiFi.
Or some sort of emulator plugin where there would be a base WiFi emulator that would emulate WiFi access via the underlying connection but then via configuration it could emulate WPA/WEP by providing a list of fake WiFi networks and their corresponding fake passwords that would be matched against a configurable list of credentials.
After all the idea is to do initial testing on the emulator and then move on to the actual device.
An ImageView gets setLayoutParams from View which uses ViewGroup.LayoutParams. If you use that, it will crash in most cases so you should use getLayoutParams() which is in View.class. This will inherit the parent View of the ImageView and will work always. You can confirm this here: ImageView extends view
Assuming you have an ImageView defined as 'image_view' and the width/height int defined as 'thumb_size'
The best way to do this:
ViewGroup.LayoutParams iv_params_b = image_view.getLayoutParams();
iv_params_b.height = thumb_size;
iv_params_b.width = thumb_size;
image_view.setLayoutParams(iv_params_b);
Another similar approach is to use htaccess mod_rewrite to ignore part of the path when serving the files. Your never-cached index page references the latest path to the files.
From a development perspective it's as easy as using params for the version number, but it's as robust as the filename approach.
Use the ignored part of the path for the version number, and the server just ignores it and serves the uncached file.
1.2.3/css/styles.css
serves the same file as css/styles.css
since the first directory is stripped and ignored by the htaccess file
<?php
$version = "1.2.3";
?>
<html>
<head>
<meta http-equiv="cache-control" content="max-age=0" />
<meta http-equiv="cache-control" content="no-cache" />
<meta http-equiv="expires" content="0" />
<meta http-equiv="expires" content="Tue, 01 Jan 1980 1:00:00 GMT" />
<meta http-equiv="pragma" content="no-cache" />
<link rel="stylesheet" type="text/css" href="<?php echo $version ?>/css/styles.css">
</head>
<body>
<script src="<?php echo $version ?>/js/main.js"></script>
</body>
</html>
Note that this approach means you need to disable caching of your index page - Using <meta> tags to turn off caching in all browsers?
RewriteEngine On
# if you're requesting a file that exists, do nothing
RewriteCond %{REQUEST_FILENAME} !-f
# likewise if a directory that exists, do nothing
RewriteCond %{REQUEST_FILENAME} !-d
# otherwise, rewrite foo/bar/baz to bar/baz - ignore the first directory
RewriteRule ^[^/]+/(.+)$ $1 [L]
You could take the same approach on any server platform that allows url rewriting
(rewrite condition adapted from mod_rewrite - rewrite directory to query string except /#!/)
... and if you need cache busting for your index page / site entry point, you could always use JavaSript to refresh it.
This should work for MVC3 & MVC4
@Html.TextBoxFor(m => m.Age, new { @Value = "12" })
If you want it to be a hidden field
@Html.TextBoxFor(m => m.Age, new { @Value = "12",@type="hidden" })
Try putting it in quotes:
find . -name '*test.c'
You don't need to assign names
to list
or []
or anything else until you wish to use it.
It's neater to use a list comprehension to make the list of names.
shuffle
modifies the list you pass to it. It always returns None
If you are using a context manager (with ...
) you don't need to close the file explicitly
from random import shuffle
with open('names') as f:
names = [name.rstrip() for name in f if not name.isspace()]
shuffle(names)
assert len(names) > 100
You can delete column like this:
df.drop("column Name).columns
In your case :
df.drop("id").columns
If you want to drop more than one column you can do:
dfWithLongColName.drop("ORIGIN_COUNTRY_NAME", "DEST_COUNTRY_NAME")
If you want to read line-by-line, use a BufferedReader
. It has a readLine()
method which returns the line as a String, or null if the end of the file has been reached. So you can do something like:
BufferedReader reader = new BufferedReader(new InputStreamReader(fis));
String line;
while ((line = reader.readLine()) != null) {
// Do something with line
}
(Note that this code doesn't handle exceptions or close the stream, etc)
If you are displaying child form as a modal dialog box, you can set DialogResult property of child form with a value from the DialogResult enumeration which in turn hides the modal dialog box, and returns control to the calling form. At this time parent can access child form's data to get the info that it need.
For more info check this link: http://msdn.microsoft.com/en-us/library/system.windows.forms.form.dialogresult(v=vs.110).aspx
The tick_params
method is very useful for stuff like this. This code turns off major and minor ticks and removes the labels from the x-axis.
from matplotlib import pyplot as plt
plt.plot(range(10))
plt.tick_params(
axis='x', # changes apply to the x-axis
which='both', # both major and minor ticks are affected
bottom=False, # ticks along the bottom edge are off
top=False, # ticks along the top edge are off
labelbottom=False) # labels along the bottom edge are off
plt.show()
plt.savefig('plot')
plt.clf()
I realize this is an older post but I had the same error on IIS 8.5. Hopefully this can help another experiencing the same issue (I didn't see my issue outlined in other questions with a similar title).
Everything seemed set up correctly with the Application Pool Identity, but I continued to receive the error. After much digging, there is a setting for the anonymous user to use the credentials of the application pool identity or a specific user. For whatever reason, mine was defaulted to a specific user. Altering the setting to the App Pool Identity fixed the issue for me.
Hopefully this saves someone else some time!
There is an issue that if you close the dialog it will execute the onCloseCallback function. This is a better design.
function jAlert2(outputMsg, titleMsg, onCloseCallback) {
if (!titleMsg)
titleMsg = 'Alert';
if (!outputMsg)
outputMsg = 'No Message to Display.';
$("<div></div>").html(outputMsg).dialog({
title: titleMsg,
resizable: false,
modal: true,
buttons: {
"OK": onCloseCallback,
"Cancel": function() {
$( this ).dialog( "destroy" );
}
},
});
I was almost using the same technology as you did, however I was using my app to connect an Exchange Server via Office 365 platform on WinForms. I too had the same issue as you did, but was able to accomplish by using code which has slight modification of what others have given above.
SmtpClient client = new SmtpClient(exchangeServer, 587);
client.Credentials = new System.Net.NetworkCredential(username, password);
client.EnableSsl = true;
client.Send(msg);
I had to use the Port 587, which is of course the default port over TSL and the did the authentication.
dex
file is a file that is executed on the Dalvik VM.
Dalvik VM includes several features for performance optimization, verification, and monitoring, one of which is Dalvik Executable (DEX).
Java source code is compiled by the Java compiler into .class
files. Then the dx
(dexer) tool, part of the Android SDK processes the .class
files into a file format called DEX
that contains Dalvik byte code. The dx
tool eliminates all the redundant information that is present in the classes. In DEX
all the classes of the application are packed into one file. The following table provides comparison between code sizes for JVM jar files and the files processed by the dex
tool.
The table compares code sizes for system libraries, web browser applications, and a general purpose application (alarm clock app). In all cases dex tool reduced size of the code by more than 50%.
In standard Java environments each class in Java code results in one .class
file. That means, if the Java source code file has one public class and two anonymous classes, let’s say for event handling, then the java compiler will create total three .class
files.
The compilation step is same on the Android platform, thus resulting in multiple .class
files. But after .class
files are generated, the “dx” tool is used to convert all .class
files into a single .dex
, or Dalvik Executable, file. It is the .dex
file that is executed on the Dalvik VM. The .dex
file has been optimized for memory usage and the design is primarily driven by sharing of data.
After looking for an answer for myself for some time, i could find something. in general if we are using it for just one property it appears same even if we do a "View Source" of generated HTML Below is generated HTML for example, when i want to display only Name property for my class
<td>
myClassNameProperty
</td>
<td>
myClassNameProperty, This is direct from Item
</td>
This is the generated HTML from below code
<td>
@Html.DisplayFor(modelItem=>item.Genre.Name)
</td>
<td>
@item.Genre.Name, This is direct from Item
</td>
At the same time now if i want to display all properties in one statement for my class "Genre" in this case, i can use @Html.DisplayFor() to save on my typing, for least
i can write @Html.DisplayFor(modelItem=>item.Genre) in place of writing a separate statement for each property of Genre as below
@item.Genre.Name
@item.Genre.Id
@item.Genre.Description
and so on depending on number of properties.
For hash references. You should use curly braces like the following:
$hash_ref1 = {%$hash_ref1, %$hash_ref2};
and not the suggested answer above using parenthesis:
$hash_ref1 = ($hash_ref1, $hash_ref2);
Assgining a value that starts with a "=" will kick in formula evaluation and gave in my case the above mentioned error #1004. Prepending it with a space was the ticket for me.
Bear in mind, I've only experimented with MongoDB...
From what I've read, DynamoDB has come a long way in terms of features. It used to be a super-basic key-value store with extremely limited storage and querying capabilities. It has since grown, now supporting bigger document sizes + JSON support and global secondary indices. The gap between what DynamoDB and MongoDB offers in terms of features grows smaller with every month. The new features of DynamoDB are expanded on here.
Much of the MongoDB vs. DynamoDB comparisons are out of date due to the recent addition of DynamoDB features. However, this post offers some other convincing points to choose DynamoDB, namely that it's simple, low maintenance, and often low cost. Another discussion here of database choices was interesting to read, though slightly old.
My takeaway: if you're doing serious database queries or working in languages not supported by DynamoDB, use MongoDB. Otherwise, stick with DynamoDB.
This answer focusses more on the sidenote "i.e. has at least one alphanumeric character". Besides that, it doesn't add too much to the other (earlier) solution, except that it doesn't hurt you with NPE in case the String is null
.
We want false
if (1) s is null
or (2) s is empty or (3) s only contains whitechars.
public static boolean containsNonWhitespaceChar(String s) {
return !((s == null) || "".equals(s.trim()));
}
I hear a lot of good things about com0com, which is a software port emulator. You can "connect" a physical serial port through it, so that your software uses the (monitored) virtual port, and forwards all traffic to/from a physical port. I haven't used it myself, but I've seen it recommended here on SO a lot.
For 1D array, numpy.correlate
is faster than scipy.signal.correlate
, under different sizes, I see a consistent 5x peformance gain using numpy.correlate
. When two arrays are of similar size (the bright line connecting the diagonal), the performance difference is even more outstanding (50x +).
# a simple benchmark
res = []
for x in range(1, 1000):
list_x = []
for y in range(1, 1000):
# generate different sizes of series to compare
l1 = np.random.choice(range(1, 100), size=x)
l2 = np.random.choice(range(1, 100), size=y)
time_start = datetime.now()
np.correlate(a=l1, v=l2)
t_np = datetime.now() - time_start
time_start = datetime.now()
scipy.signal.correlate(in1=l1, in2=l2)
t_scipy = datetime.now() - time_start
list_x.append(t_scipy / t_np)
res.append(list_x)
plt.imshow(np.matrix(res))
As default, scipy.signal.correlate calculates a few extra numbers by padding and that might explained the performance difference.
>> l1 = [1,2,3,2,1,2,3]
>> l2 = [1,2,3]
>> print(numpy.correlate(a=l1, v=l2))
>> print(scipy.signal.correlate(in1=l1, in2=l2))
[14 14 10 10 14]
[ 3 8 14 14 10 10 14 8 3] # the first 3 is [0,0,1]dot[1,2,3]
If this is for testing and/or development purposes, setuptools has a develop command that updates every time you make a change (so you don't have to uninstall and reinstall every time you make a change). And you can uninstall the package using this command as well.
If you do use this, anything that you declare as a script will be left behind as a lingering file.
Low level system programming is a reasonable example.
IIRC, I've used unions to breakdown hardware registers into the component bits. So, you can access an 8-bit register (as it was, in the day I did this ;-) into the component bits.
(I forget the exact syntax but...) This structure would allow a control register to be accessed as a control_byte or via the individual bits. It would be important to ensure the bits map on to the correct register bits for a given endianness.
typedef union {
unsigned char control_byte;
struct {
unsigned int nibble : 4;
unsigned int nmi : 1;
unsigned int enabled : 1;
unsigned int fired : 1;
unsigned int control : 1;
};
} ControlRegister;
This problem really cost me some hours.
My system is Ubuntu 14.04, I installed docker by sudo apt-get install docker
, and typed some other commands that caused the problem.
I google "unknown job: docker.io", answers did not take effect.
I looked for reasons of "unknown job" in /etc/init.d/
, found no proper answer .
I looked for way to debug script in /etc/init.d/
, found no proper answer.
Then, I did a clean:
sudo apt-get remove docker.io
find / -name "*docker*"
, such as /etc/init/docker.io.conf
, /etc/init.d/docker.io
.Follow the latest official document: https://docs.docker.com/installation/, there is a lot of outdated documentation which can be misleading.
Finally, it fixed the problem.
Note: If you are in China, because of the GFW, you may need to set the https_proxy to install docker from https://get.docker.com/ .
Copy the cell. Paste special as link. Will update with original. No formula though.
SELECT * FROM Table where codtable not in (Select codtable from Table where fecha is null)
You have the field in a string, so you'll need to convert it to datetime
order by CONVERT(datetime, EventDate ) desc
Refering to Andrie's answer, suggesting to use plyr::rbind.fill()
:
Combined with t()
you have something like cbind.fill()
(which is not part of plyr
) that will construct your data frame with consideration of identical case numbers.
The high votes answer is right. You can checkout that you have applied different name for the components. But if the question is still not resolved, you can make sure that you have register the component only once.
components: {_x000D_
IMContainer,_x000D_
RightPanel_x000D_
},_x000D_
methods: {},_x000D_
components: {_x000D_
IMContainer,_x000D_
RightPanel_x000D_
}_x000D_
_x000D_
we always forget that we have register the component before
Angular 4 - Solution to address the ordering of the optional parameter:
DO THIS:
const appRoutes: Routes = [
{path: '', component: HomeComponent},
{path: 'products', component: ProductsComponent},
{path: 'products/:id', component: ProductsComponent}
]
Note that the products
and products/:id
routes are named exactly the same. Angular 4 will correctly follow products
for routes with no parameter, and if a parameter it will follow products/:id
.
However, the path for the non-parameter route products
must not have a trailing slash, otherwise angular will incorrectly treat it as a parameter-path. So in my case, I had the trailing slash for products and it wasn't working.
DON'T DO THIS:
...
{path: 'products/', component: ProductsComponent},
{path: 'products/:id', component: ProductsComponent},
...
You can do it calling setRowSelectionInterval :
table.setRowSelectionInterval(0, 0);
to select the first row.
Sounds like you don't want to resolve dns yourself (this might be the wrong nomenclature) dnspython appears to be a standalone dns client that will understandably ignore your operating system because its bypassing the operating system's utillities.
We can look at a shell utility named getent
to understand how the (debian 11 alike) operating system resolves dns for programs, this is likely the standard for all *nix like systems that use a socket implementation.
see man getent
's "hosts" section, which mentions the use of getaddrinfo
, which we can see as man getaddrinfo
and to use it in python, we have to extract some info from the data structures
.
import socket
def get_ipv4_by_hostname(hostname):
# see `man getent` `/ hosts `
# see `man getaddrinfo`
return list(
i # raw socket structure
[4] # internet protocol info
[0] # address
for i in
socket.getaddrinfo(
hostname,
0 # port, required
)
if i[0] is socket.AddressFamily.AF_INET # ipv4
# ignore duplicate addresses with other socket types
and i[1] is socket.SocketKind.SOCK_RAW
)
print(get_ipv4_by_hostname('localhost'))
print(get_ipv4_by_hostname('google.com'))
The question is already answered (BTW, really good and comprehensive answer provided by Ben), but I would like to add another element for completeness, which may be also very handy.
In the example suggested by Ben:
<select ng-model="blah" ng-options="item.ID as item.Title for item in items"></select>
the following ngOptions form has been used: select as label for value in array
.
Label is an expression, which result will be the label for <option>
element. In that case you can perform certain string concatenations, in order to have more complex option labels.
Examples:
ng-options="item.ID as item.Title + ' - ' + item.ID for item in items"
gives you labels like Title - ID
ng-options="item.ID as item.Title + ' (' + item.Title.length + ')' for item in items"
gives you labels like Title (X)
, where X
is length of Title string.You can also use filters, for example,
ng-options="item.ID as item.Title + ' (' + (item.Title | uppercase) + ')' for item in items"
gives you labels like Title (TITLE)
, where Title value of Title property and TITLE is the same value but converted to uppercase characters.ng-options="item.ID as item.Title + ' (' + (item.SomeDate | date) + ')' for item in items"
gives you labels like Title (27 Sep 2015)
, if your model has a property SomeDate
you can also try with this answer :
<img src="~/Content/img/@Html.DisplayFor(model =>model.ImagePath)" style="height:200px;width:200px;"/>
So, I hear this works:
Data$X1<-as.character(Data$X1)
Data$GEOID<-as.character(Data$BLKIDFP00)
Data<-within(Data,X1<-ifelse(is.na(Data$X1),GEOID,Data$X2))
But I admit I have only intermittent luck with it.
Use http://ipinfo.io , You need to pay them if you make more than 1000 requests per day.
The code below requires the Json.NET package.
public static string GetUserCountryByIp(string ip)
{
IpInfo ipInfo = new IpInfo();
try
{
string info = new WebClient().DownloadString("http://ipinfo.io/" + ip);
ipInfo = JsonConvert.DeserializeObject<IpInfo>(info);
RegionInfo myRI1 = new RegionInfo(ipInfo.Country);
ipInfo.Country = myRI1.EnglishName;
}
catch (Exception)
{
ipInfo.Country = null;
}
return ipInfo.Country;
}
And the IpInfo
Class I used:
public class IpInfo
{
[JsonProperty("ip")]
public string Ip { get; set; }
[JsonProperty("hostname")]
public string Hostname { get; set; }
[JsonProperty("city")]
public string City { get; set; }
[JsonProperty("region")]
public string Region { get; set; }
[JsonProperty("country")]
public string Country { get; set; }
[JsonProperty("loc")]
public string Loc { get; set; }
[JsonProperty("org")]
public string Org { get; set; }
[JsonProperty("postal")]
public string Postal { get; set; }
}
Try something like this:
type: application/ms-excel
/**
* used to get file from server
*/
this.http.get(`${environment.apiUrl}`,{
responseType: 'arraybuffer',headers:headers}
).subscribe(response => this.downLoadFile(response, "application/ms-excel"));
/**
* Method is use to download file.
* @param data - Array Buffer data
* @param type - type of the document.
*/
downLoadFile(data: any, type: string) {
let blob = new Blob([data], { type: type});
let url = window.URL.createObjectURL(blob);
let pwa = window.open(url);
if (!pwa || pwa.closed || typeof pwa.closed == 'undefined') {
alert( 'Please disable your Pop-up blocker and try again.');
}
}
In general, if you don't know how something works, look for an example which you can learn from.
For this problem, consider this DEMO
You can see loading content with AJAX is very easily accomplished with jQuery:
$(function(){
// don't cache ajax or content won't be fresh
$.ajaxSetup ({
cache: false
});
var ajax_load = "<img src='http://automobiles.honda.com/images/current-offers/small-loading.gif' alt='loading...' />";
// load() functions
var loadUrl = "http://fiddle.jshell.net/deborah/pkmvD/show/";
$("#loadbasic").click(function(){
$("#result").html(ajax_load).load(loadUrl);
});
// end
});
Try to understand how this works and then try replicating it. Good luck.
You can find the corresponding tutorial HERE
Right now the following event starts the ajax load
function:
$("#loadbasic").click(function(){
$("#result").html(ajax_load).load(loadUrl);
});
You can also do this periodically: How to fire AJAX request Periodically?
(function worker() {
$.ajax({
url: 'ajax/test.html',
success: function(data) {
$('.result').html(data);
},
complete: function() {
// Schedule the next request when the current one's complete
setTimeout(worker, 5000);
}
});
})();
I made a demo of this implementation for you HERE. In this demo, every 2 seconds (setTimeout(worker, 2000);
) the content is updated.
You can also just load the data immediately:
$("#result").html(ajax_load).load(loadUrl);
Which has THIS corresponding demo.
See short-circuit evaluation for the explanation. It's a common way of implementing these operators; it is not unique to JavaScript.
I am going to use a lot of text from the book Operating Systems Concepts by ABRAHAM SILBERSCHATZ, PETER BAER GALVIN and GREG GAGNE along with my own understanding of things.
Process
Any application resides in the computer in the form of text (or code).
We emphasize that a program by itself is not a process. A program is a passive entity, such as a file containing a list of instructions stored on disk (often called an executable file).
When we start an application, we create an instance of execution. This instance of execution is called a process. EDIT:(As per my interpretation, analogous to a class and an instance of a class, the instance of a class being a process. )
An example of processes is that of Google Chrome. When we start Google Chrome, 3 processes are spawned:
• The browser process is responsible for managing the user interface as well as disk and network I/O. A new browser process is created when Chrome is started. Only one browser process is created.
• Renderer processes contain logic for rendering web pages. Thus, they contain the logic for handling HTML, Javascript, images, and so forth. As a general rule, a new renderer process is created for each website opened in a new tab, and so several renderer processes may be active at the same time.
• A plug-in process is created for each type of plug-in (such as Flash or QuickTime) in use. Plug-in processes contain the code for the plug-in as well as additional code that enables the plug-in to communicate with associated renderer processes and the browser process.
Thread
To answer this I think you should first know what a processor is. A Processor is the piece of hardware that actually performs the computations. EDIT: (Computations like adding two numbers, sorting an array, basically executing the code that has been written)
Now moving on to the definition of a thread.
A thread is a basic unit of CPU utilization; it comprises a thread ID, a program counter, a register set, and a stack.
EDIT: Definition of a thread from intel's website:
A Thread, or thread of execution, is a software term for the basic ordered sequence of instructions that can be passed through or processed by a single CPU core.
So, if the Renderer process from the Chrome application sorts an array of numbers, the sorting will take place on a thread/thread of execution. (The grammar regarding threads seems confusing to me)
My Interpretation of Things
A process is an execution instance. Threads are the actual workers that perform the computations via CPU access. When there are multiple threads running for a process, the process provides common memory.
EDIT: Other Information that I found useful to give more context
All modern day computer have more than one threads. The number of threads in a computer depends on the number of cores in a computer.
Concurrent Computing:
From Wikipedia:
Concurrent computing is a form of computing in which several computations are executed during overlapping time periods—concurrently—instead of sequentially (one completing before the next starts). This is a property of a system—this may be an individual program, a computer, or a network—and there is a separate execution point or "thread of control" for each computation ("process").
So, I could write a program which calculates the sum of 4 numbers:
(1 + 3) + (4 + 5)
In the program to compute this sum (which will be one process running on a thread of execution) I can fork another process which can run on a different thread to compute (4 + 5) and return the result to the original process, while the original process calculates the sum of (1 + 3).
i founded this tool to auto generate wsdl to android code,
http://www.wsdl2code.com/Example.aspx
public void callWebService(){
SampleService srv1 = new SampleService();
Request req = new Request();
req.companyId = "1";
req.userName = "userName";
req.password = "pas";
Response response = srv1.ServiceSample(req);
}
You can get an integer representation of your float by passing the float into the Integer initializer method.
Example:
Int(myFloat)
Keep in mind, that any numbers after the decimal point will be loss. Meaning, 3.9 is an Int of 3 and 8.99999 is an integer of 8.
The following code will split a string with an arbitrary number of substrings:
@echo off
setlocal ENABLEDELAYEDEXPANSION
REM Set a string with an arbitrary number of substrings separated by semi colons
set teststring=The;rain;in;spain
REM Do something with each substring
:stringLOOP
REM Stop when the string is empty
if "!teststring!" EQU "" goto END
for /f "delims=;" %%a in ("!teststring!") do set substring=%%a
REM Do something with the substring -
REM we just echo it for the purposes of demo
echo !substring!
REM Now strip off the leading substring
:striploop
set stripchar=!teststring:~0,1!
set teststring=!teststring:~1!
if "!teststring!" EQU "" goto stringloop
if "!stripchar!" NEQ ";" goto striploop
goto stringloop
)
:END
endlocal
Python 3.3 and later now uses the 2010 compiler. To best way to solve the issue is to just install Visual C++ Express 2010 for free.
Now comes the harder part for 64 bit users and to be honest I just moved to 32 bit but 2010 express doesn't come with a 64 bit compiler (you get a new error, ValueError: ['path'] ) so you have to install Microsoft SDK 7.1 and follow the directions here to get the 64 bit compiler working with python: Python PIP has issues with path for MS Visual Studio 2010 Express for 64-bit install on Windows 7
It may just be easier for you to use the 32 bit version for now. In addition to getting the compiler working, you can bypass the need to compile many modules by getting the binary wheel file from this locaiton http://www.lfd.uci.edu/~gohlke/pythonlibs/
Just download the .whl file you need, shift + right click the download folder and select "open command window here" and run
pip install module-name.whl
I used that method on 64 bit 3.4.3 before I broke down and decided to just get a working compiler for pip compiles modules from source by default, which is why the binary wheel files work and having pip build from source doesn't.
People getting this (vcvarsall.bat) error on Python 2.7 can instead install "Microsoft Visual C++ Compiler for Python 2.7"
For CodeIgniter 4
, you can use the built-in API Response Trait
Here's sample code for reference:
<?php namespace App\Controllers;
use CodeIgniter\API\ResponseTrait;
class Home extends BaseController
{
use ResponseTrait;
public function index()
{
$data = [
'data' => 'value1',
'data2' => 'value2',
];
return $this->respond($data);
}
}
Another simple way get by using findall in yii
$id =101;
$comments = EmailArchive::model()->findAll(array("condition"=>"':email_id'=$id"));
foreach($comments as $comments_1)
{
echo "email:".$comments_1['email_id'];
}
The simpliest way to understand it is that DateTime is a struct. When you initialize a struct it's initialize to it's minimum value : DateTime.Min
Therefore there is no difference between default(DateTime)
and new DateTime()
and DateTime.Min
You can add this function to string class
String.prototype.insert_at=function(index, string)
{
return this.substr(0, index) + string + this.substr(index);
}
so that you can use it on any string object:
var my_string = "abcd";
my_string.insertAt(1, "XX");
int is the C# language's shortcut for System.Int32
Whilst this does mean that Microsoft could change this mapping, a post on FogCreek's discussions stated [source]
"On the 64 bit issue -- Microsoft is indeed working on a 64-bit version of the .NET Framework but I'm pretty sure int will NOT map to 64 bit on that system.
Reasons:
1. The C# ECMA standard specifically says that int is 32 bit and long is 64 bit.
2. Microsoft introduced additional properties & methods in Framework version 1.1 that return long values instead of int values, such as Array.GetLongLength in addition to Array.GetLength.
So I think it's safe to say that all built-in C# types will keep their current mapping."
You can do this with a single statement - assuming you are calling it from a JDBC-like connector with in/out parameters functionality:
insert into batch(batchid, batchname)
values (batch_seq.nextval, 'new batch')
returning batchid into :l_batchid;
or, as a pl-sql script:
variable l_batchid number;
insert into batch(batchid, batchname)
values (batch_seq.nextval, 'new batch')
returning batchid into :l_batchid;
select :l_batchid from dual;
Since creating an JQuery object for every comparison is not efficient, just use:
$.expr[":"].blank = function(element) {
return element.value == "";
};
Then you can do:
$(":input:blank")
You can pass multiple parameters as "?param1=value1¶m2=value2
"
But it's not secure. It's vulnerable to Cross Site Scripting (XSS) Attack
.
Your parameter can be simply replaced with a script.
Have a look at this article and article
You can make it secure by using API of StringEscapeUtils
static String escapeHtml(String str)
Escapes the characters in a String using HTML entities.
Even using https
url for security without above precautions is not a good practice.
Have a look at related SE question:
For instance you can use
update tablename set datetimefield='19980223 14:23:05'
update tablename set datetimefield='02/23/1998 14:23:05'
update tablename set datetimefield='1998-12-23 14:23:05'
update tablename set datetimefield='23 February 1998 14:23:05'
update tablename set datetimefield='1998-02-23T14:23:05'
You need to be careful of day/month order since this will be language dependent when the year is not specified first. If you specify the year first then there is no problem; date order will always be year-month-day.
Your javascript values are client-side, your scriptlet is running server-side. So if you want to use your javascript variables in a scriptlet, you will need to submit them.
To achieve this, either store them in input fields and submit a form, or perform an ajax request. I suggest you look into JQuery for this.
There is a Powershell script buried in the msdb forums that will script all the tables and related objects:
# Script all tables in a database
[System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SqlServer.SMO")
| out-null
$s = new-object ('Microsoft.SqlServer.Management.Smo.Server') '<Servername>'
$db = $s.Databases['<Database>']
$scrp = new-object ('Microsoft.SqlServer.Management.Smo.Scripter') ($s)
$scrp.Options.AppendToFile = $True
$scrp.Options.ClusteredIndexes = $True
$scrp.Options.DriAll = $True
$scrp.Options.ScriptDrops = $False
$scrp.Options.IncludeHeaders = $False
$scrp.Options.ToFileOnly = $True
$scrp.Options.Indexes = $True
$scrp.Options.WithDependencies = $True
$scrp.Options.FileName = 'C:\Temp\<Database>.SQL'
foreach($item in $db.Tables) { $tablearray+=@($item) }
$scrp.Script($tablearray)
Write-Host "Scripting complete"
I tried the answer but it didn't worked for me. This is what i ended up doing:
Create a new controller DefaultController. In index action, i wrote one line redirect:
return Redirect("~/Default.aspx")
In RouteConfig.cs, change controller="Default" for the route.
routes.MapRoute(
name: "Default",
url: "{controller}/{action}/{id}",
defaults: new { controller = "Default", action = "Index", id = UrlParameter.Optional }
);
You create a tap, pinch or swipe gesture recognizer in the same manor. Below I'll walk you through 4 steps to getting your recognizer up and running.
4 Steps
1.) Inherit from UIGestureRecognizerDelegate
by adding it to your class signature.
class ViewController: UIViewController, UIGestureRecognizerDelegate {...}
2.) Control drag from your image to your viewController to create an IBOutlet:
@IBOutlet weak var tapView: UIImageView!
3.) In your viewDidLoad add the following code:
// create an instance of UITapGestureRecognizer and tell it to run
// an action we'll call "handleTap:"
let tap = UITapGestureRecognizer(target: self, action: Selector("handleTap:"))
// we use our delegate
tap.delegate = self
// allow for user interaction
tapView.userInteractionEnabled = true
// add tap as a gestureRecognizer to tapView
tapView.addGestureRecognizer(tap)
4.) Create the function that will be called when your gesture recognizer is tapped. (You can exclude the = nil
if you choose).
func handleTap(sender: UITapGestureRecognizer? = nil) {
// just creating an alert to prove our tap worked!
let tapAlert = UIAlertController(title: "hmmm...", message: "this actually worked?", preferredStyle: UIAlertControllerStyle.Alert)
tapAlert.addAction(UIAlertAction(title: "OK", style: .Destructive, handler: nil))
self.presentViewController(tapAlert, animated: true, completion: nil)
}
Your final code should look something like this:
class ViewController: UIViewController, UIGestureRecognizerDelegate {
@IBOutlet weak var tapView: UIImageView!
override func viewDidLoad() {
super.viewDidLoad()
let tap = UITapGestureRecognizer(target: self, action: Selector("handleTap:"))
tap.delegate = self
tapView.userInteractionEnabled = true
tapView.addGestureRecognizer(tap)
}
func handleTap(sender: UITapGestureRecognizer? = nil) {
let tapAlert = UIAlertController(title: "hmmm...", message: "this actually worked?", preferredStyle: UIAlertControllerStyle.Alert)
tapAlert.addAction(UIAlertAction(title: "OK", style: .Destructive, handler: nil))
self.presentViewController(tapAlert, animated: true, completion: nil)
}
}
Eclipse Collections has Pair
and all combinations of primitive/object Pairs (for all eight primitives).
The Tuples
factory can create instances of Pair
, and the PrimitiveTuples
factory can be used to create all combinations of primitive/object pairs.
We added these before Java 8 was released. They were useful to implement key/value Iterators for our primitive maps, which we also support in all primitive/object combinations.
If you're willing to add the extra library overhead, you can use Stuart's accepted solution and collect the results into a primitive IntList
to avoid boxing. We added new methods in Eclipse Collections 9.0 to allow for Int/Long/Double
collections to be created from Int/Long/Double
Streams.
IntList list = IntLists.mutable.withAll(intStream);
Note: I am a committer for Eclipse Collections.
For HashMap DEFAULT_INITIAL_CAPACITY = 16 and DEFAULT_LOAD_FACTOR = 0.75f it means that MAX number of ALL Entries in the HashMap = 16 * 0.75 = 12. When the thirteenth element will be added capacity (array size) of HashMap will be doubled! Perfect illustration answered this question: image is taken from here:
https://javabypatel.blogspot.com/2015/10/what-is-load-factor-and-rehashing-in-hashmap.html
I use this to either zip or unzip multiple files. The Regex stuff is not required, but I use it to change the date stamp and remove unwanted underscores. I use the empty string in the Compress >> zipPath string to prefix something to all files if required. Also, I usually comment out either Compress() or Decompress() based on what I am doing.
using System;
using System.IO.Compression;
using System.IO;
using System.Text.RegularExpressions;
namespace ZipAndUnzip
{
class Program
{
static void Main(string[] args)
{
var directoryPath = new DirectoryInfo(@"C:\your_path\");
Compress(directoryPath);
Decompress(directoryPath);
}
public static void Compress(DirectoryInfo directoryPath)
{
foreach (DirectoryInfo directory in directoryPath.GetDirectories())
{
var path = directoryPath.FullName;
var newArchiveName = Regex.Replace(directory.Name, "[0-9]{8}", "20130913");
newArchiveName = Regex.Replace(newArchiveName, "[_]+", "_");
string startPath = path + directory.Name;
string zipPath = path + "" + newArchiveName + ".zip";
ZipFile.CreateFromDirectory(startPath, zipPath);
}
}
public static void Decompress(DirectoryInfo directoryPath)
{
foreach (FileInfo file in directoryPath.GetFiles())
{
var path = directoryPath.FullName;
string zipPath = path + file.Name;
string extractPath = Regex.Replace(path + file.Name, ".zip", "");
ZipFile.ExtractToDirectory(zipPath, extractPath);
}
}
}
}
/*
(opener)
*/
(closer)
for example,
<html>
/*<p>Commented P Tag </p>*/
<html>
You can specify the color
option as a list directly to the plot
function.
from matplotlib import pyplot as plt
from itertools import cycle, islice
import pandas, numpy as np # I find np.random.randint to be better
# Make the data
x = [{i:np.random.randint(1,5)} for i in range(10)]
df = pandas.DataFrame(x)
# Make a list by cycling through the colors you care about
# to match the length of your data.
my_colors = list(islice(cycle(['b', 'r', 'g', 'y', 'k']), None, len(df)))
# Specify this list of colors as the `color` option to `plot`.
df.plot(kind='bar', stacked=True, color=my_colors)
To define your own custom list, you can do a few of the following, or just look up the Matplotlib techniques for defining a color item by its RGB values, etc. You can get as complicated as you want with this.
my_colors = ['g', 'b']*5 # <-- this concatenates the list to itself 5 times.
my_colors = [(0.5,0.4,0.5), (0.75, 0.75, 0.25)]*5 # <-- make two custom RGBs and repeat/alternate them over all the bar elements.
my_colors = [(x/10.0, x/20.0, 0.75) for x in range(len(df))] # <-- Quick gradient example along the Red/Green dimensions.
The last example yields the follow simple gradient of colors for me:
I didn't play with it long enough to figure out how to force the legend to pick up the defined colors, but I'm sure you can do it.
In general, though, a big piece of advice is to just use the functions from Matplotlib directly. Calling them from Pandas is OK, but I find you get better options and performance calling them straight from Matplotlib.
Sounds like you're calling sp_executesql with a VARCHAR statement, when it needs to be NVARCHAR.
e.g. This will give the error because @SQL needs to be NVARCHAR
DECLARE @SQL VARCHAR(100)
SET @SQL = 'SELECT TOP 1 * FROM sys.tables'
EXECUTE sp_executesql @SQL
So:
DECLARE @SQL NVARCHAR(100)
SET @SQL = 'SELECT TOP 1 * FROM sys.tables'
EXECUTE sp_executesql @SQL
I get this error too when creating a project in IntelliJ without using a template.
I have 2 SDKs installed: Amazon Corretto and java version 11.0.4 and so, what I do when I have this error is "change the SDK" it usually works fine with Corretto
to do that you need to click on File (in IntelliJ)/ Project Structure / Project / Project SDK: select corretto from the dropdown list (or check the option in your computer) as shown here
hope this will work for you too
Best, Constantin
private void DrawEllipseRectangle(PaintEventArgs e)
{
Pen p = new Pen(Color.Black, 3);
Rectangle r = new Rectangle(100, 100, 100, 100);
e.Graphics.DrawEllipse(p, r);
}
private void Form1_Paint(object sender, PaintEventArgs e)
{
DrawEllipseRectangle(e);
}
You have to use querySelectorAll
as you need to select all elements with the said class, again since querySelectorAll
is an array you need to iterate it and add the event handlers
var deleteLinks = document.querySelectorAll('.delete');
for (var i = 0; i < deleteLinks.length; i++) {
deleteLinks[i].addEventListener('click', function (event) {
event.preventDefault();
var choice = confirm("sure u want to delete?");
if (choice) {
return true;
}
});
}
$(document).ready(function() {
$('#Button').click(function() {
$(this).addClass('active');
});
});
should do the trick. unless you're loading the button with ajax. In which case you could do:
$('#Button').live('click', function() {...
Also remember not to use the same id more than once in your html code.
It is possible to use Symfony\Component\Console\Output\TrimmedBufferOutput
and then test the buffered output string like this:
use Symfony\Component\Console\Output\TrimmedBufferOutput;
//...
public function testSomething()
{
$output = new TrimmedBufferOutput(999);
$output->writeln('Do something in your code with the output class...');
//test the output:
$this->assertStringContainsString('expected string...', $output->fetch());
}
Thats how I handle it
while(true) {
if((receiveMessage = receiveRead.readLine()) != null ) {
System.out.println("first message same :"+receiveMessage);
System.out.println(receiveMessage);
}
else if(receiveRead.readLine()==null)
{
System.out.println("Client has disconected: "+sock.isClosed());
System.exit(1);
} }
if the result.code == null
So if the issue is you just created a website and your clients or any given ISP DNS is cached and doesn't show new site yet. Yes all the other stuff applies ipconfig reset browser etc. BUT here's an Idea and something I do from time to time. You can set an alternate network ISP's DNS in the tcpip properties on the NIC properties. So if your ISP is say telstra and it hasn't propagated or updated you can specify an alternate service providers dns there. if that isp dns is updated before your native one hey presto you will see new site.But there is lots of other tricks you can do to determine propagation and get mail to work prior to the DNS updating. drop me a line if any one wants to chat.
DECLARE @FromDate DATETIME
SET @FromDate = 'Jan 10 2016 12:00AM'
DECLARE @ToDate DATETIME
SET @ToDate = 'Jan 10 2017 12:00AM'
DECLARE @Dynamic_Qry nvarchar(Max) =''
SET @Dynamic_Qry='SELECT
(CONVERT(DATETIME,(SELECT
CASE WHEN ( ''IssueDate'' =''IssueDate'') THEN
EMP_DOCUMENT.ISSUE_DATE
WHEN (''IssueDate'' =''ExpiryDate'' ) THEN
EMP_DOCUMENT.EXPIRY_DATE ELSE EMP_DOCUMENT.APPROVED_ON END
CHEKDATE ), 101)
)FROM CR.EMP_DOCUMENT as EMP_DOCUMENT WHERE 1=1
AND (
CONVERT(DATETIME,(SELECT
CASE WHEN ( ''IssueDate'' =''IssueDate'') THEN
EMP_DOCUMENT.ISSUE_DATE
WHEN (''IssueDate'' =''ExpiryDate'' ) THEN EMP_DOCUMENT.EXPIRY_DATE
ELSE EMP_DOCUMENT.APPROVED_ON END
CHEKDATE ), 101)
) BETWEEN '''+ CONVERT(CHAR(10), @FromDate, 126) +''' AND '''+CONVERT(CHAR(10), @ToDate , 126
)
+'''
'
print @Dynamic_Qry
EXEC(@Dynamic_Qry)
something like below
var idList=new int[]{1, 2, 3, 4};
using (var db=new SomeDatabaseContext())
{
var friends= db.Friends.Where(f=>idList.Contains(f.ID)).ToList();
friends.ForEach(a=>a.msgSentBy='1234');
db.SaveChanges();
}
you can update multiple fields as below
friends.ForEach(a =>
{
a.property1 = value1;
a.property2 = value2;
});
In my case i did following code for compare 2 dates may it will help you ...
var date1 = "2010-10-20";_x000D_
var date2 = "2010-10-20";_x000D_
var time1 = moment(date1).format('YYYY-MM-DD');_x000D_
var time2 = moment(date2).format('YYYY-MM-DD');_x000D_
if(time2 > time1){_x000D_
console.log('date2 is Greter than date1');_x000D_
}else if(time2 > time1){_x000D_
console.log('date2 is Less than date1');_x000D_
}else{_x000D_
console.log('Both date are same');_x000D_
}
_x000D_
<script src="https://momentjs.com/downloads/moment.js"></script>
_x000D_
Here is what I do, though using anchors is the best way:
grep -w "ABB.log " a.tmp
a = "MandY"
alow = a.lower()
if "mandy" in alow:
print "true"
work around
it should be :
$_SERVER['REQUEST_URI'];
Take a look at : Get the full URL in PHP
If someone is using print
function (for example, with mtext), then firstly depict a null plot:
plot(0,type='n',axes=FALSE,ann=FALSE)
and then print with newpage = F
print(data, newpage = F)
In this issue, I just do add namespace like below and it works
<a href="#">
<img src="p.png"></img>
</a>
If you want to make your statement easily readable, then you can use REGEXP_LIKE (available from Oracle version 10 onwards).
An example table:
SQL> create table mytable (something)
2 as
3 select 'blabla' from dual union all
4 select 'notbla' from dual union all
5 select 'ofooof' from dual union all
6 select 'ofofof' from dual union all
7 select 'batzzz' from dual
8 /
Table created.
The original syntax:
SQL> select something
2 from mytable
3 where something like 'bla%'
4 or something like '%foo%'
5 or something like 'batz%'
6 /
SOMETH
------
blabla
ofooof
batzzz
3 rows selected.
And a simple looking query with REGEXP_LIKE
SQL> select something
2 from mytable
3 where regexp_like (something,'^bla|foo|^batz')
4 /
SOMETH
------
blabla
ofooof
batzzz
3 rows selected.
BUT ...
I would not recommend it myself due to the not-so-good performance. I'd stick with the several LIKE predicates. So the examples were just for fun.
You're opening a file, then passing the file pointer to a function that only wants a file name to open the file itself. You can simplify your call to;
void main(void)
{
printf("LINES: %d\n",countlines("Test.txt"));
}
EDIT: You're changing the question around so it's very hard to answer; at first you got your change to main()
wrong, you forgot that the first parameter is argc, so it crashed. Now you have the problem of;
if (fp == NULL); // <-- note the extra semicolon that is the only thing
// that runs conditionally on the if
return 0; // Always runs and returns 0
which will always return 0. Remove that extra semicolon, and you should get a reasonable count.
Try Html.EditorFor
helper method instead of Html.TextBoxFor
.
HashMap
is unordered per the second line of the documentation:
This class makes no guarantees as to the order of the map; in particular, it does not guarantee that the order will remain constant over time.
Perhaps you can do as aix suggests and use a LinkedHashMap
, or another ordered collection. This link can help you find the most appropriate collection to use.
Use cell arrays. This has an advantage over 3D arrays in that it does not require a contiguous memory space to store all the matrices. In fact, each matrix can be stored in a different space in memory, which will save you from Out-of-Memory errors if your free memory is fragmented. Here is a sample function to create your matrices in a cell array:
function result = createArrays(nArrays, arraySize)
result = cell(1, nArrays);
for i = 1 : nArrays
result{i} = zeros(arraySize);
end
end
To use it:
myArray = createArrays(requiredNumberOfArrays, [500 800]);
And to access your elements:
myArray{1}(2,3) = 10;
If you can't know the number of matrices in advance, you could simply use MATLAB's dynamic indexing to make the array as large as you need. The performance overhead will be proportional to the size of the cell array, and is not affected by the size of the matrices themselves. For example:
myArray{1} = zeros(500, 800);
if twoRequired, myArray{2} = zeros(500, 800); end
Here's a plain javascript (no library required) solution:
function removeUndefinedProps(obj) {
for (var prop in obj) {
if (obj.hasOwnProperty(prop) && obj[prop] === undefined) {
delete obj[prop];
}
}
}
Working demo: http://jsfiddle.net/jfriend00/djj5g5fu/
I don't know if it's possible to do ranges in awk. You could do a for loop, but you would have to add handling to filter out the columns you don't want. It's probably easier to do this:
awk -F, '{OFS=",";print $1,$2,$3,$4,$5,$6,$7,$8,$9,$10,$20,$21,$22,$23,$24,$25,$30,$33}' infile.csv > outfile.csv
something else to consider - and this faster and more concise:
cut -d "," -f1-10,20-25,30-33 infile.csv > outfile.csv
As to the second part of your question, I would probably write a script in perl that knows how to handle header rows, parsing the columns names from stdin or a file and then doing the filtering. It's probably a tool I would want to have for other things. I am not sure about doing in a one liner, although I am sure it can be done.
i++ is post increment. The increment takes place after the value is returned.
The following is a solution for MySQL (not SQL Server), i couldn't easily find a solution to this on stackoverflow for mysql, so i figured maybe this could help someone...
ref: https://forums.mysql.com/read.php?10,285268,285286#msg-285286
original query...
SELECT StudentId FROM Student WHERE condition = xyz
original result set...
StudentId
1236
7656
8990
new query w/ concat...
SELECT group_concat(concat_ws(',', StudentId) separator '; ')
FROM Student
WHERE condition = xyz
concat string result set...
StudentId
1236; 7656; 8990
note: change the 'separator' to whatever you would like
GLHF!
if exist yourfilename (
echo Yes
) else (
echo No
)
Replace yourfilename with the name of your file.
if exist yourfoldername\ (
echo Yes
) else (
echo No
)
Replace yourfoldername with the name of your folder.
A trailing backslash (\
) seems to be enough to distinguish between directories and ordinary files.
Can I offer an alternative solution?
I had this same issue, and fade didn't work because it faded the entire element, not just the background. In my case the element was body, so I only wanted to fade the background.
An elegant way to tackle this is to class the element and use CSS3 transition for the background.
transition: background 0.5s linear;
When you change the background, either with toggleClass or with your code, $("#large-img").css('background-image', 'url('+$img+')');
it will fade as defined by the class.
As of Rails 4.2, you can use the config.x
property:
# config/application.rb (or config/custom.rb if you prefer)
config.x.colours.options = %w[white blue black red green]
config.x.colours.default = 'white'
Which will be available as:
Rails.configuration.x.colours.options
# => ["white", "blue", "black", "red", "green"]
Rails.configuration.x.colours.default
# => "white"
Another method of loading custom config:
# config/colours.yml
default: &default
options:
- white
- blue
- black
- red
- green
default: white
development:
*default
production:
*default
# config/application.rb
config.colours = config_for(:colours)
Rails.configuration.colours
# => {"options"=>["white", "blue", "black", "red", "green"], "default"=>"white"}
Rails.configuration.colours['default']
# => "white"
In Rails 5 & 6, you can use the configuration
object directly for custom configuration, in addition to config.x
. However, it can only be used for non-nested configuration:
# config/application.rb
config.colours = %w[white blue black red green]
It will be available as:
Rails.configuration.colours
# => ["white", "blue", "black", "red", "green"]
function Index($index) {
$Count = count($YOUR_ARRAY);
if ($index <= $Count) {
$Keys = array_keys($YOUR_ARRAY);
$Value = array_values($YOUR_ARRAY);
return $Keys[$index] . ' = ' . $Value[$index];
} else {
return "Out of the ring";
}
}
echo 'Index : ' . Index(0);
Replace the ( $YOUR_ARRAY )
You can use \n
for new line and \t
for tabs. Also, extra spaces/tabs are just copied the way you write them in Strings.xml
so just give a couple of spaces where ever you want them.
A better way to reach this would probably be using padding/margin in your view xml and splitting up your long text in different strings in your string.xml
Based on Wakas Bukhary answer, you could make it async by puting the last line in the response scope.
$('#myform').submit(function(event) {
event.preventDefault(); //this will prevent the default submit
var _this = $(this); //store form so it can be accessed later
$.ajax('GET', 'url').then(function(resp) {
// your code here
_this.unbind('submit').submit(); // continue the submit unbind preventDefault
})
}
The main advantages are syntactic:
You are unlikely to see any performance benefits with ES6 modules. You will still need an extra library to bundle the modules, even when there is full support for ES6 features in the browser.
This should be an answer
str2.equals( str )
If you want to ignore case
str2.equalsIgnoreCase( str )
nohup sh -x runShellScripts.sh &
In Angular 2+ to 9 using Typescript
Source Link
we can use an object to bind multiple Checkbox
checkboxesDataList = [
{
id: 'C001',
label: 'Photography',
isChecked: true
},
{
id: 'C002',
label: 'Writing',
isChecked: true
},
{
id: 'C003',
label: 'Painting',
isChecked: true
},
{
id: 'C004',
label: 'Knitting',
isChecked: false
},
{
id: 'C004',
label: 'Dancing',
isChecked: false
},
{
id: 'C005',
label: 'Gardening',
isChecked: true
},
{
id: 'C006',
label: 'Drawing',
isChecked: true
},
{
id: 'C007',
label: 'Gyming',
isChecked: false
},
{
id: 'C008',
label: 'Cooking',
isChecked: true
},
{
id: 'C009',
label: 'Scrapbooking',
isChecked: false
},
{
id: 'C010',
label: 'Origami',
isChecked: false
}
]
In HTML Template use
<ul class="checkbox-items">
<li *ngFor="let item of checkboxesDataList">
<input type="checkbox" [(ngModel)]="item.isChecked" (change)="changeSelection()">{{item.label}}
</li>
</ul>
To get selected checkboxes, add the following method in class
// Selected item
fetchSelectedItems() {
this.selectedItemsList = this.checkboxesDataList.filter((value, index) => {
return value.isChecked
});
}
// IDs of selected item
fetchCheckedIDs() {
this.checkedIDs = []
this.checkboxesDataList.forEach((value, index) => {
if (value.isChecked) {
this.checkedIDs.push(value.id);
}
});
}
Late to the party, here's a solution I came up with some time ago, which completely abides to the requested syntax.
#include <uberswitch/uberswitch.hpp>
int main()
{
uberswitch (std::string("raj"))
{
case ("sda"): /* ... */ break; //notice the parenthesis around the value.
}
}
Here's the code: https://github.com/falemagn/uberswitch
In .NET 4.6 the preferred way is to use a new method, Array.Empty
:
String[] a = Array.Empty<string>();
The implementation is succinct, using how static members in generic classes behave in .Net:
public static T[] Empty<T>()
{
return EmptyArray<T>.Value;
}
// Useful in number of places that return an empty byte array to avoid
// unnecessary memory allocation.
internal static class EmptyArray<T>
{
public static readonly T[] Value = new T[0];
}
(code contract related code removed for clarity)
See also:
Array.Empty
source code on Reference SourceArray.Empty<T>()
128M == 134217728
, the number you are seeing.
The memory limit is working fine. When it says it tried to allocate 32 bytes, that the amount requested by the last operation before failing.
Are you building any huge arrays or reading large text files? If so, remember to free any memory you don't need anymore, or break the task down into smaller steps.
I agree with @haha on this one, for the most part. But there are several cross-browser related issues with using the "float:right" and could ultimately give you more of a headache than you want. If you know what the widths are going to be for each column use a float:left on both and save yourself the trouble. Another thing you can incorporate into your methodology is build column classes into your CSS.
So try something like this:
CSS
.col-wrapper{width:960px; margin:0 auto;}
.col{margin:0 10px; float:left; display:inline;}
.col-670{width:670px;}
.col-250{width:250px;}
HTML
<div class="col-wrapper">
<div class="col col-670">[Page Content]</div>
<div class="col col-250">[Page Sidebar]</div>
</div>
BeRecursive's answer is the one I used, so that we could standardize on Json.Net (we have MVC5 and WebApi 5 -- WebApi 5 already uses Json.Net), but I found an issue. When you have parameters in your route to which you're POSTing, MVC tries to call the model binder for the URI values, and this code will attempt to bind the posted JSON to those values.
Example:
[HttpPost]
[Route("Customer/{customerId:int}/Vehicle/{vehicleId:int}/Policy/Create"]
public async Task<JsonNetResult> Create(int customerId, int vehicleId, PolicyRequest policyRequest)
The BindModel
function gets called three times, bombing on the first, as it tries to bind the JSON to customerId
with the error: Error reading integer. Unexpected token: StartObject. Path '', line 1, position 1.
I added this block of code to the top of BindModel
:
if (bindingContext.ValueProvider.GetValue(bindingContext.ModelName) != null) {
return base.BindModel(controllerContext, bindingContext);
}
The ValueProvider, fortunately, has route values figured out by the time it gets to this method.
module.exports = { ClientIDUnsplash : 'SuperSecretKey' };
var { ClientIDUnsplash } = require('./FileOne');
This example works best for React.
yes, just do the following
git checkout feature_x
git push origin feature_x
If you want to extend it just because you need Not-Swipeable behaviour, you dont need to do it. ViewPager2 provides nice property called : isUserInputEnabled
In Mongoose: from the document:
To remove a document from a subdocument array we may pass an object with a matching _id.
contact.phone.pull({ _id: itemId }) // remove
contact.phone.pull(itemId); // this also works
See Leonid Beschastny's answer for the correct answer.
Or you could just perform a trim()
on the string to handle the case when people use spaces instead of tabs (unless you are reading makefiles)
CREATE FUNCTION DBO.ConvertDateToVarchar
(
@DATE DATETIME
)
RETURNS VARCHAR(24)
BEGIN
RETURN (SELECT CONVERT(VARCHAR(19),@DATE, 121))
END
The problem with the original code is that:
h:
expects parameter where it shouldn't, so change it into just h
(without colon)-p any_string
, you need to add p:
to the argument listBasically :
after the option means it requires the argument.
The basic syntax of getopts
is (see: man bash
):
getopts OPTSTRING VARNAME [ARGS...]
where:
OPTSTRING
is string with list of expected arguments,
h
- check for option -h
without parameters; gives error on unsupported options;h:
- check for option -h
with parameter; gives errors on unsupported options;abc
- check for options -a
, -b
, -c
; gives errors on unsupported options;:abc
- check for options -a
, -b
, -c
; silences errors on unsupported options;
Notes: In other words, colon in front of options allows you handle the errors in your code. Variable will contain ?
in the case of unsupported option, :
in the case of missing value.
OPTARG
- is set to current argument value,
OPTERR
- indicates if Bash should display error messages.So the code can be:
#!/usr/bin/env bash
usage() { echo "$0 usage:" && grep " .)\ #" $0; exit 0; }
[ $# -eq 0 ] && usage
while getopts ":hs:p:" arg; do
case $arg in
p) # Specify p value.
echo "p is ${OPTARG}"
;;
s) # Specify strength, either 45 or 90.
strength=${OPTARG}
[ $strength -eq 45 -o $strength -eq 90 ] \
&& echo "Strength is $strength." \
|| echo "Strength needs to be either 45 or 90, $strength found instead."
;;
h | *) # Display help.
usage
exit 0
;;
esac
done
Example usage:
$ ./foo.sh
./foo.sh usage:
p) # Specify p value.
s) # Specify strength, either 45 or 90.
h | *) # Display help.
$ ./foo.sh -s 123 -p any_string
Strength needs to be either 45 or 90, 123 found instead.
p is any_string
$ ./foo.sh -s 90 -p any_string
Strength is 90.
p is any_string
See: Small getopts tutorial at Bash Hackers Wiki
You may want to use setArray
method as mentioned in the javadoc below:
Sample Code:
PreparedStatement pstmt =
conn.prepareStatement("select * from employee where id in (?)");
Array array = conn.createArrayOf("VARCHAR", new Object[]{"1", "2","3"});
pstmt.setArray(1, array);
ResultSet rs = pstmt.executeQuery();
Yes, there is a shortcut for commenting out lines in Python 3.6 (Spyder).
For Single Line Comment, you can use Ctrl+1. It will look like this #This is a sample piece of code
For multi-line comments, you can use Ctrl+4. It will look like this
#=============
\#your piece of code
\#some more code
\#=============
Note : \
represents that the code is carried to another line.
Use :set nowrap
.. works like a charm!
Many of the above answers are correct, but remember that by default the debugger will listen on localhost, which means you can debug only if you're running the debugging client (for example, the IDE) on the same machine.
If you are debugging a remote server you will need to specify the correct IP address on that server to listen on, for example
JPDA_OPTS="-agentlib:jdwp=transport=dt_socket,address=10.1.1.33:8000,server=y,suspend=n"
catalina.sh jpda start
Note that the address is now 10.1.1.33:8000
Of course, you can also check which IP is actually being used, by running
netstat -an
This command is valid on both windows and Linux - you just need to filter out the port with find
(Windows) or grep
(Linux).
Find the folder containing the shared library libopencv_core.so.2.4 using the following command line.
sudo find / -name "libopencv_core.so.2.4*"
Then I got the result:
/usr/local/lib/libopencv_core.so.2.4.
Create a file called
/etc/ld.so.conf.d/opencv.conf
and write to it the path to the folder where the binary is stored.For example, I wrote /usr/local/lib/
to my opencv.conf
file.
Run the command line as follows.
sudo ldconfig -v
Try to run the command again.
One of my clients was facing the same issue. Following steps are taken to fix this.
(1) Open Run.
(2) Type Services.msc
(3) Select ASP.NET State Service
(4) Right Click and Start it.
Well, longs can't hold anything but integers.
One option is to use a float: float('234.89')
The other option is to truncate or round. Converting from a float to a long will truncate for you: long(float('234.89'))
>>> long(float('1.1'))
1L
>>> long(float('1.9'))
1L
>>> long(round(float('1.1')))
1L
>>> long(round(float('1.9')))
2L
int i = Integer.parseInt(c, 2);
Once you have your date object constructed, here's a snippet for the conversion:
The function takes a UTC formatted Date object and format string.
You will need a Date.strftime
prototype.
function UTCToLocalTimeString(d, format) {
if (timeOffsetInHours == null) {
timeOffsetInHours = (new Date().getTimezoneOffset()/60) * (-1);
}
d.setHours(d.getHours() + timeOffsetInHours);
return d.strftime(format);
}
Your issue is with attempting to change your month by adding 1. 1 in date serials in Excel is equal to 1 day. Try changing your month by using the following:
NewDate = Format(DateAdd("m",1,StartDate),"dd/mm/yyyy")
async() => {
let body = await model.find().or([
{ name: 'something'},
{ nickname: 'somethang'}
]).exec();
console.log(body);
}
/* Gives an array of the searched query!
returns [] if not found */
modelBuilder.Property(x => x.FirstName).IsUnicode().IsRequired().HasMaxLength(50);
You need to install Team Explorer, it's best to install the version of Team Explorer that matches the version of TFS you are using e.g. if you're using TFS 2010 then install Team Explorer 2010.
2012 version http://www.microsoft.com/en-gb/download/details.aspx?id=30656
2013 version http://www.microsoft.com/en-us/download/details.aspx?id=40776
2019 version https://visualstudio.microsoft.com/thank-you-downloading-visual-studio/?sku=TeamExplorer&rel=16
You also might be interested in the TFS power tools. They add some extra command line features (using tfpt.exe
) and also add some extra IDE features.
simple solution
public static void main(String[] args) {
int v = 12345;
while (v > 0){
System.out.println(v % 10);
v /= 10;
}
}
Format with Currency format string
=Format(Fields!Price.Value, "C")
It will give you 2 decimal places with "$" prefixed.
You can find other format strings on MSDN: Adding Style and Formatting to a ReportViewer Report
Note: The MSDN article has been archived to the "VS2005_General" document, which is no longer directly accessible online. Here is the excerpt of the formatting strings referenced:
Formatting Numbers
The following table lists common .NET Framework number formatting strings.
Format string, Name
C or c Currency
D or d Decimal
E or e Scientific
F or f Fixed-point
G or g General
N or n Number
P or p Percentage
R or r Round-trip
X or x Hexadecimal
You can modify many of the format strings to include a precision specifier that defines the number of digits to the right of the
decimal point. For example, a formatting string of D0 formats the number so that it has no digits after the decimal point. You
can also use custom formatting strings, for example, #,###.
Formatting Dates
The following table lists common .NET Framework date formatting strings.
Format string, Name
d Short date
D Long date
t Short time
T Long time
f Full date/time (short time)
F Full date/time (long time)
g General date/time (short time)
G General date/time (long time)
M or m Month day
R or r RFC1123 pattern
Y or y Year month
You can also a use custom formatting strings; for example, dd/MM/yy. For more information about .NET Framework formatting strings, see Formatting Types.
try this code its very simple and usefull
public boolean isMockLocationEnabled() {
boolean isMockLocation = false;
try {
//if marshmallow
if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
AppOpsManager opsManager = (AppOpsManager) getApplicationContext().getSystemService(Context.APP_OPS_SERVICE);
isMockLocation = (opsManager.checkOp(AppOpsManager.OPSTR_MOCK_LOCATION, android.os.Process.myUid(), BuildConfig.APPLICATION_ID)== AppOpsManager.MODE_ALLOWED);
} else {
// in marshmallow this will always return true
isMockLocation = !android.provider.Settings.Secure.getString(getApplicationContext().getContentResolver(), "mock_location").equals("0");
}
} catch (Exception e) {
return isMockLocation;
}
return isMockLocation;
}
You have came to this because you want to apply Material Design in your theme style in previous sdk versions to 21. ActionBarActivity
requires AppTheme
so if you also want to prevent your own customization about your AppTheme, only you have to change in your styles.xml (previous to sdk 21) so this way, can inherit for an App Compat theme.
<style name="AppTheme" parent="android:Theme.Holo.Light.DarkActionBar">
for this:
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
Here's a simple function I wrote to display tabular data without having to input each column name: (Also, be aware: Nested looping)
function display_data($data) {
$output = '<table>';
foreach($data as $key => $var) {
$output .= '<tr>';
foreach($var as $k => $v) {
if ($key === 0) {
$output .= '<td><strong>' . $k . '</strong></td>';
} else {
$output .= '<td>' . $v . '</td>';
}
}
$output .= '</tr>';
}
$output .= '</table>';
echo $output;
}
Hi Jack,
your function design is fine, but this function always misses the first dataset in the array. I tested that.
Your function is so fine, that many people will use it, but they will always miss the first dataset. That is why I wrote this amendment.
The missing dataset results from the condition if key === 0. If key = 0 only the columnheaders are written, but not the data which contains $key 0 too. So there is always missing the first dataset of the array.
You can avoid that by moving the if condition above the second foreach loop like this:
function display_data($data) {
$output = "<table>";
foreach($data as $key => $var) {
//$output .= '<tr>';
if($key===0) {
$output .= '<tr>';
foreach($var as $col => $val) {
$output .= "<td>" . $col . '</td>';
}
$output .= '</tr>';
foreach($var as $col => $val) {
$output .= '<td>' . $val . '</td>';
}
$output .= '</tr>';
}
else {
$output .= '<tr>';
foreach($var as $col => $val) {
$output .= '<td>' . $val . '</td>';
}
$output .= '</tr>';
}
}
$output .= '</table>';
echo $output;
}
Best regards and thanks - Axel Arnold Bangert - Herzogenrath 2016
and another update that removes redundant code blocks that hurt maintainability of the code.
function display_data($data) {
$output = '<table>';
foreach($data as $key => $var) {
$output .= '<tr>';
foreach($var as $k => $v) {
if ($key === 0) {
$output .= '<td><strong>' . $k . '</strong></td>';
} else {
$output .= '<td>' . $v . '</td>';
}
}
$output .= '</tr>';
}
$output .= '</table>';
echo $output;
}
I think there is a semantic problem here. In my view, a user can have a (but only one) favourite recipe to prepare a specific menu. (The OP has menu and recipe mixed up; if I am wrong: please interchange MenuId and RecipeId below) That implies that {user,menu} should be a unique key in this table. And it should point to exactly one recipe. If the user has no favourite recipe for this specific menu no row should exist for this {user,menu} key pair. Also: the surrogate key (FaVouRiteId) is superfluous: composite primary keys are perfectly valid for relational-mapping tables.
That would lead to the reduced table definition:
CREATE TABLE Favorites
( UserId uuid NOT NULL REFERENCES users(id)
, MenuId uuid NOT NULL REFERENCES menus(id)
, RecipeId uuid NOT NULL REFERENCES recipes(id)
, PRIMARY KEY (UserId, MenuId)
);
Found this one:
[x for (i,x) in enumerate(my_list) if my_list[i] == "two"]
Will print:
["two"]
%pwd #look at the current work dir
%cd #change to the dir you want
Go to your $ANDROID_HOME/tools/bin
and fire the cmd
./sdkmanager --licenses
Accept All licenses listed there.
After this just go to the licenses folder in sdk and check that it's having these five files:
android-sdk-license, android-googletv-license, android-sdk-preview-license, google-gdk-license, mips-android-sysimage-license
Give a retry and build again, still jenkins giving 'licenses not accepted' then you have to give full permission to your 'sdk' directory and all it's parent directories. Here is the command:
sudo chmod -R 777 /opt/
If you having sdk in /opt/ directory.
A newer way to do this in .NET Core is with TagHelpers
.
https://docs.microsoft.com/en-us/aspnet/core/mvc/views/tag-helpers/intro
Building on these examples (MaxLength, Label), you can extend the existing TagHelper
to suit your needs.
using Microsoft.AspNetCore.Razor.TagHelpers;
using System.ComponentModel.DataAnnotations;
using System.Collections.Generic;
using Microsoft.AspNetCore.Mvc.ViewFeatures;
using System.Linq;
namespace ProjectName.TagHelpers
{
[HtmlTargetElement("input", Attributes = "asp-for")]
public class RequiredTagHelper : TagHelper
{
public override int Order
{
get { return int.MaxValue; }
}
[HtmlAttributeName("asp-for")]
public ModelExpression For { get; set; }
public override void Process(TagHelperContext context, TagHelperOutput output)
{
base.Process(context, output);
if (context.AllAttributes["required"] == null)
{
var isRequired = For.ModelExplorer.Metadata.ValidatorMetadata.Any(a => a is RequiredAttribute);
if (isRequired)
{
var requiredAttribute = new TagHelperAttribute("required");
output.Attributes.Add(requiredAttribute);
}
}
}
}
}
You'll then need to add it to be used in your views:
@using ProjectName
@addTagHelper *, Microsoft.AspNetCore.Mvc.TagHelpers
@addTagHelper "*, ProjectName"
Given the following model:
using System;
using System.ComponentModel.DataAnnotations;
namespace ProjectName.Models
{
public class Foo
{
public int Id { get; set; }
[Required]
[Display(Name = "Full Name")]
public string Name { get; set; }
}
}
and view (snippet):
<label asp-for="Name"></label>
<input asp-for="Name"/>
Will result in this HTML:
<label for="Name">Full Name</label>
<input required type="text" data-val="true" data-val-required="The Full Name field is required." id="Name" name="Name" value=""/>
I hope this is helpful to anyone with same question but using .NET Core.
Although Simon Cross's answer is accepted and correct, I thought I would beef it up a bit with an example (Android) of what needs to be done. I'll keep it as general as I can and focus on just the question. Personally I wound up storing things in a database so the loading was smooth, but that requires a CursorAdapter and ContentProvider which is a bit out of scope here.
I came here myself and then thought, now what?!
The Issue
Just like user3594351, I was noticing the friend data was blank. I found this out by using the FriendPickerFragment. What worked three months ago, no longer works. Even Facebook's examples broke. So my issue was 'How Do I create FriendPickerFragment by hand?
What Did Not Work
Option #1 from Simon Cross was not strong enough to invite friends to the app. Simon Cross also recommended the Requests Dialog, but that would only allow five requests at a time. The requests dialog also showed the same friends during any given Facebook logged in session. Not useful.
What Worked (Summary)
Option #2 with some hard work. You must make sure you fulfill Facebook's new rules: 1.) You're a game 2.) You have a Canvas app (Web Presence) 3.) Your app is registered with Facebook. It is all done on the Facebook developer website under Settings.
To emulate the friend picker by hand inside my app I did the following:
Details
The AsynchTask
private class DownloadFacebookFriendsTask extends AsyncTask<FacebookFriend.Type, Boolean, Boolean> {
private final String TAG = DownloadFacebookFriendsTask.class.getSimpleName();
GraphObject graphObject;
ArrayList<FacebookFriend> myList = new ArrayList<FacebookFriend>();
@Override
protected Boolean doInBackground(FacebookFriend.Type... pickType) {
//
// Determine Type
//
String facebookRequest;
if (pickType[0] == FacebookFriend.Type.AVAILABLE) {
facebookRequest = "/me/friends";
} else {
facebookRequest = "/me/invitable_friends";
}
//
// Launch Facebook request and WAIT.
//
new Request(
Session.getActiveSession(),
facebookRequest,
null,
HttpMethod.GET,
new Request.Callback() {
public void onCompleted(Response response) {
FacebookRequestError error = response.getError();
if (error != null && response != null) {
Log.e(TAG, error.toString());
} else {
graphObject = response.getGraphObject();
}
}
}
).executeAndWait();
//
// Process Facebook response
//
//
if (graphObject == null) {
return false;
}
int numberOfRecords = 0;
JSONArray dataArray = (JSONArray) graphObject.getProperty("data");
if (dataArray.length() > 0) {
// Ensure the user has at least one friend ...
for (int i = 0; i < dataArray.length(); i++) {
JSONObject jsonObject = dataArray.optJSONObject(i);
FacebookFriend facebookFriend = new FacebookFriend(jsonObject, pickType[0]);
if (facebookFriend.isValid()) {
numberOfRecords++;
myList.add(facebookFriend);
}
}
}
// Make sure there are records to process
if (numberOfRecords > 0){
return true;
} else {
return false;
}
}
@Override
protected void onProgressUpdate(Boolean... booleans) {
// No need to update this, wait until the whole thread finishes.
}
@Override
protected void onPostExecute(Boolean result) {
if (result) {
/*
User the array "myList" to create the adapter which will control showing items in the list.
*/
} else {
Log.i(TAG, "Facebook Thread unable to Get/Parse friend data. Type = " + pickType);
}
}
}
The FacebookFriend class I created
public class FacebookFriend {
String facebookId;
String name;
String pictureUrl;
boolean invitable;
boolean available;
boolean isValid;
public enum Type {AVAILABLE, INVITABLE};
public FacebookFriend(JSONObject jsonObject, Type type) {
//
//Parse the Facebook Data from the JSON object.
//
try {
if (type == Type.INVITABLE) {
//parse /me/invitable_friend
this.facebookId = jsonObject.getString("id");
this.name = jsonObject.getString("name");
// Handle the picture data.
JSONObject pictureJsonObject = jsonObject.getJSONObject("picture").getJSONObject("data");
boolean isSilhouette = pictureJsonObject.getBoolean("is_silhouette");
if (!isSilhouette) {
this.pictureUrl = pictureJsonObject.getString("url");
} else {
this.pictureUrl = "";
}
this.invitable = true;
} else {
// Parse /me/friends
this.facebookId = jsonObject.getString("id");
this.name = jsonObject.getString("name");
this.available = true;
this.pictureUrl = "";
}
isValid = true;
} catch (JSONException e) {
Log.w("#", "Warnings - unable to process Facebook JSON: " + e.getLocalizedMessage());
}
}
}
Observe if the view has the model required:
View
@model IEnumerable<WFAccess.Models.ViewModels.SiteViewModel>
<div class="row">
<table class="table table-striped table-hover table-width-custom">
<thead>
<tr>
....
Controller
[HttpGet]
public ActionResult ListItems()
{
SiteStore site = new SiteStore();
site.GetSites();
IEnumerable<SiteViewModel> sites =
site.SitesList.Select(s => new SiteViewModel
{
Id = s.Id,
Type = s.Type
});
return PartialView("_ListItems", sites);
}
In my case I Use a partial view but runs in normal views
Just initialize it with empty vectors:
df <- data.frame(Date=as.Date(character()),
File=character(),
User=character(),
stringsAsFactors=FALSE)
Here's an other example with different column types :
df <- data.frame(Doubles=double(),
Ints=integer(),
Factors=factor(),
Logicals=logical(),
Characters=character(),
stringsAsFactors=FALSE)
str(df)
> str(df)
'data.frame': 0 obs. of 5 variables:
$ Doubles : num
$ Ints : int
$ Factors : Factor w/ 0 levels:
$ Logicals : logi
$ Characters: chr
N.B. :
Initializing a data.frame
with an empty column of the wrong type does not prevent further additions of rows having columns of different types.
This method is just a bit safer in the sense that you'll have the correct column types from the beginning, hence if your code relies on some column type checking, it will work even with a data.frame
with zero rows.
For handling errors from ajax calls on the client side, you assign a function to the error
option of the ajax call.
To set a default globally, you can use the function described here: http://api.jquery.com/jQuery.ajaxSetup.
resulting_list = first_list + [i for i in second_list if i not in first_list]
Flask will process one request per thread at the same time. If you have 2 processes with 4 threads each, that's 8 concurrent requests.
Flask doesn't spawn or manage threads or processes. That's the responsability of the WSGI gateway (eg. gunicorn).
Try the following:
str1="2345";
int x=str1.charAt(2)-'0';
//here x=4;
if u subtract by char '0', the ASCII value needs not to be known.
you use the scrollTop attribute
var position = document.getElementById('id').scrollTop;
This happened to me when I started to work with a colleque's project.
He was using jdk 12.0.2 .
If you are suspicious jdk difference might be the case (Your IDE complains about SDK, JDK etc.):
This works for me. Hope it will work for you too.
ScriptManager.RegisterStartupScript(this, this.GetType(), "isActive", "Test();", true);
I have edited the html page which you have provided. The updated page is as below
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title>My Page</title>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js" type="text/javascript"></script>
<script type="text/javascript">
function Test() {
alert("Hello Test!!!!");
$('#ButtonRow').css("display", "block");
}
</script>
</head>
<body>
<form id="form1" runat="server">
<table>
<tr>
<td>
<asp:RadioButtonList ID="SearchCategory" runat="server" RepeatDirection="Horizontal"
BorderStyle="Solid">
<asp:ListItem>Merchant</asp:ListItem>
<asp:ListItem>Store</asp:ListItem>
<asp:ListItem>Terminal</asp:ListItem>
</asp:RadioButtonList>
</td>
</tr>
<tr id="ButtonRow" style="display: none">
<td>
<asp:Button ID="MyButton" runat="server" Text="Click Here" OnClick="MyButton_Click" />
</td>
</tr>
</table>
</form>
</body>
</html>
<script type="text/javascript">
$("#<%=SearchCategory.ClientID%> input").change(function () {
alert("hi");
$("#ButtonRow").show();
});
</script>
Your outer loop is looping over all the words in the list. It's unnecessary and will cause you problems. Remove it and it should work properly.
Your null pointer exception seems to be on this line:
String url = intent.getExtras().getString("userurl");
because intent.getExtras()
returns null when the intent doesn't have any extras.
You have to realize that this piece of code:
Intent Main = new Intent(this, ToClass.class);
Main.putExtra("userurl", url);
startActivity(Main);
doesn't start the activity you wrote in Main.java, it will attempt to start an activity called ToClass
and if that doesn't exist, your app crashes.
Also, there is no such thing as "android.intent.action.start"
so the manifest should look more like:
<activity android:name=".start" android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name= ".Main">
</activity>
I hope this fixes some of the issues you are encountering but I strongly suggest you check out some "getting started" tutorials for android development and build up from there.
There is also
which aims
- To encode entire script in a proprietary PHP application
- To encode some classes and/or functions in a proprietary PHP application
- To enable the production of php-gtk applications that could be used on client desktops, without the need for a php.exe.
- To do the feasibility study for a PHP to C converter
The extension is available from PECL.
Check all of the places where you are assigning something to sonEntities. The link you referenced distinctly points out creating a new HashSet but you can have this error anytime you reassign the set. For example:
public void setChildren(Set<SonEntity> aSet)
{
this.sonEntities = aSet; //This will override the set that Hibernate is tracking.
}
Usually you want to only "new" the set once in a constructor. Any time you want to add or delete something to the list you have to modify the contents of the list instead of assigning a new list.
To add children:
public void addChild(SonEntity aSon)
{
this.sonEntities.add(aSon);
}
To remove children:
public void removeChild(SonEntity aSon)
{
this.sonEntities.remove(aSon);
}
eryksun has answered question #1, and I've answered question #3 (the original #4), but now let's answer question #2:
Why does it release 50.5mb in particular - what is the amount that is released based on?
What it's based on is, ultimately, a whole series of coincidences inside Python and malloc
that are very hard to predict.
First, depending on how you're measuring memory, you may only be measuring pages actually mapped into memory. In that case, any time a page gets swapped out by the pager, memory will show up as "freed", even though it hasn't been freed.
Or you may be measuring in-use pages, which may or may not count allocated-but-never-touched pages (on systems that optimistically over-allocate, like linux), pages that are allocated but tagged MADV_FREE
, etc.
If you really are measuring allocated pages (which is actually not a very useful thing to do, but it seems to be what you're asking about), and pages have really been deallocated, two circumstances in which this can happen: Either you've used brk
or equivalent to shrink the data segment (very rare nowadays), or you've used munmap
or similar to release a mapped segment. (There's also theoretically a minor variant to the latter, in that there are ways to release part of a mapped segment—e.g., steal it with MAP_FIXED
for a MADV_FREE
segment that you immediately unmap.)
But most programs don't directly allocate things out of memory pages; they use a malloc
-style allocator. When you call free
, the allocator can only release pages to the OS if you just happen to be free
ing the last live object in a mapping (or in the last N pages of the data segment). There's no way your application can reasonably predict this, or even detect that it happened in advance.
CPython makes this even more complicated—it has a custom 2-level object allocator on top of a custom memory allocator on top of malloc
. (See the source comments for a more detailed explanation.) And on top of that, even at the C API level, much less Python, you don't even directly control when the top-level objects are deallocated.
So, when you release an object, how do you know whether it's going to release memory to the OS? Well, first you have to know that you've released the last reference (including any internal references you didn't know about), allowing the GC to deallocate it. (Unlike other implementations, at least CPython will deallocate an object as soon as it's allowed to.) This usually deallocates at least two things at the next level down (e.g., for a string, you're releasing the PyString
object, and the string buffer).
If you do deallocate an object, to know whether this causes the next level down to deallocate a block of object storage, you have to know the internal state of the object allocator, as well as how it's implemented. (It obviously can't happen unless you're deallocating the last thing in the block, and even then, it may not happen.)
If you do deallocate a block of object storage, to know whether this causes a free
call, you have to know the internal state of the PyMem allocator, as well as how it's implemented. (Again, you have to be deallocating the last in-use block within a malloc
ed region, and even then, it may not happen.)
If you do free
a malloc
ed region, to know whether this causes an munmap
or equivalent (or brk
), you have to know the internal state of the malloc
, as well as how it's implemented. And this one, unlike the others, is highly platform-specific. (And again, you generally have to be deallocating the last in-use malloc
within an mmap
segment, and even then, it may not happen.)
So, if you want to understand why it happened to release exactly 50.5mb, you're going to have to trace it from the bottom up. Why did malloc
unmap 50.5mb worth of pages when you did those one or more free
calls (for probably a bit more than 50.5mb)? You'd have to read your platform's malloc
, and then walk the various tables and lists to see its current state. (On some platforms, it may even make use of system-level information, which is pretty much impossible to capture without making a snapshot of the system to inspect offline, but luckily this isn't usually a problem.) And then you have to do the same thing at the 3 levels above that.
So, the only useful answer to the question is "Because."
Unless you're doing resource-limited (e.g., embedded) development, you have no reason to care about these details.
And if you are doing resource-limited development, knowing these details is useless; you pretty much have to do an end-run around all those levels and specifically mmap
the memory you need at the application level (possibly with one simple, well-understood, application-specific zone allocator in between).
nobr is too unreliable, use tables
<table>
<tr>
<td> something </td>
<td> something </td>
</tr>
</table>
It all goes on the same line, everything is level with eachother, and you have much more freedom if you want to change something later.
using from ListSelectionModel
:
ListSelectionModel cellSelectionModel = table.getSelectionModel();
cellSelectionModel.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
cellSelectionModel.addListSelectionListener(new ListSelectionListener() {
public void valueChanged(ListSelectionEvent e) {
String selectedData = null;
int[] selectedRow = table.getSelectedRows();
int[] selectedColumns = table.getSelectedColumns();
for (int i = 0; i < selectedRow.length; i++) {
for (int j = 0; j < selectedColumns.length; j++) {
selectedData = (String) table.getValueAt(selectedRow[i], selectedColumns[j]);
}
}
System.out.println("Selected: " + selectedData);
}
});
I think there is another reason for wanting to set java.library.path
. Subversion comes with many libraries and Eclipse won't see these unless java.library.path
can be appended. For example I'm on OS-X, so the libraries are under \opt\subversion\lib
. There are a lot of them and I'd like to keep them where they are (not copy them into a standard lib directory).
Project settings won't fix this.
EDIT: As mentioned by Stephen Niedzielski in his comment, the issue seems to come from the 32-bit being of the JRE, which is de facto, looking for the 32-bit version of libXtst6
. To install the required version of the library:
$ sudo apt-get install libxtst6:i386
Type:
$ sudo apt-get update
$ sudo apt-get install libxtst6
If this isn’t OK, type:
$ sudo updatedb
$ locate libXtst
it should return something like:
/usr/lib/x86_64-linux-gnu/libXtst.so.6 # Mine is OK
/usr/lib/x86_64-linux-gnu/libXtst.so.6.1.0
If you do not have libXtst.so.6
but do have libXtst.so.6.X.X
create a symbolic link:
$ cd /usr/lib/x86_64-linux-gnu/
$ ln -s libXtst.so.6 libXtst.so.6.X.X
Hope this helps.
Try:
import android.os.Vibrator;
...
Vibrator v = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE);
// Vibrate for 500 milliseconds
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
v.vibrate(VibrationEffect.createOneShot(500, VibrationEffect.DEFAULT_AMPLITUDE));
} else {
//deprecated in API 26
v.vibrate(500);
}
Note:
Don't forget to include permission in AndroidManifest.xml file:
<uses-permission android:name="android.permission.VIBRATE"/>
Personally I like to validate the form on submit and if there are errors, just return false.
$('form').submit(function() {
var error;
if ( !$('input').val() ) {
error = true
}
if (error) {
alert('there are errors')
return false
}
});
Snuffin solution seems quite slow to execute when you've got plenty of rows and Mark Byers/Rick James and Bluefeet solutions doesn't work on my environnement (MySQL 5.6) because order by is applied after execution of select, so here is a variant of Marc Byers/Rick James solutions to fix this issue (with an extra imbricated select):
select person, groupname, age
from
(
select person, groupname, age,
(@rn:=if(@prev = groupname, @rn +1, 1)) as rownumb,
@prev:= groupname
from
(
select person, groupname, age
from persons
order by groupname , age desc, person
) as sortedlist
JOIN (select @prev:=NULL, @rn :=0) as vars
) as groupedlist
where rownumb<=2
order by groupname , age desc, person;
I tried similar query on a table having 5 millions rows and it returns result in less than 3 seconds
type this first: system("defaults write org.R-project.R force.LANG en_US.UTF-8") then you will get a index number(in my case is 127)
then type: Sys.setenv(LANG = "en") then type the number and ENTER 127
When you install git-scm found in "https://git-scm.com/downloads" uncheck the "Only show new options" located at the very bottom of the installation window
Make sure you check
Click Next and you're good to go!
Try using FileUtils.write
from Apache Commons.
You should be able to do something like:
File f = new File("output.txt");
FileUtils.writeStringToFile(f, document.outerHtml(), "UTF-8");
This will create the file if it does not exist.
If you use Notepad++, I would suggest installing the XML Tools plugin. You can beautify any XML content (indentation and line breaks) or linarize it. Also you can (auto-)validate your file and apply XSL transformation to it.
Download the latest zip and copy the extracted DLL to the plugins directory of your Notepad++ installation. Also, download the External libs and copy them to your %SystemRoot%\system32\ directory.
This issue will be fixed by adding the postinstall
script below in your package.json
.
It will be run after a npm install.
"scripts": {
"postinstall": "ngcc"
}
Post adding the above code, run npm install
This works for me when upgrading to Angular 9+
Basically the same as bcoughlan's answer, but here it is as an executable command:
$ python -c "import django; print(django.get_version())"
2.0
The csv file might contain very huge fields, therefore increase the field_size_limit
:
import sys
import csv
csv.field_size_limit(sys.maxsize)
sys.maxsize
works for Python 2.x and 3.x. sys.maxint
would only work with Python 2.x (SO: what-is-sys-maxint-in-python-3)
As Geoff pointed out, the code above might result in the following error: OverflowError: Python int too large to convert to C long
.
To circumvent this, you could use the following quick and dirty code (which should work on every system with Python 2 and Python 3):
import sys
import csv
maxInt = sys.maxsize
while True:
# decrease the maxInt value by factor 10
# as long as the OverflowError occurs.
try:
csv.field_size_limit(maxInt)
break
except OverflowError:
maxInt = int(maxInt/10)
List all variables set in the config file, along with their values.
git config --list
If you are new to git then use the following commands to set a user name and email address.
Set user name
git config --global user.name "your Name"
Set user email
git config --global user.email "[email protected]"
Check user name
git config user.name
Check user email
git config user.email
Compass adjusts the way partials are imported. It allows importing components based solely on their name, without specifying the path.
Before you can do @import 'compass';
, you should:
Install Compass as a Ruby gem:
gem install compass
After that, you should use Compass's own command line tool to compile your SASS code:
cd path/to/your/project/
compass compile
Note that Compass reqiures a configuration file called config.rb
. You should create it for Compass to work.
The minimal config.rb
can be as simple as this:
css_dir = "css"
sass_dir = "sass"
And your SASS code should reside in sass/
.
Instead of creating a configuration file manually, you can create an empty Compass project with compass create <project-name>
and then copy your SASS code inside it.
Note that if you want to use Compass extensions, you will have to:
config.rb
;More info here: http://compass-style.org/help/
You don't have to always use a weak reference. If your block is not retained, but executed and then discarded, you can capture self strongly, as it will not create a retain cycle. In some cases, you even want the block to hold the self until the completion of the block so it does not deallocate prematurely. If, however, you capture the block strongly, and inside capture self, it will create a retain cycle.
I had same issue but didn't want to draw on screen before measuring so I used this method of measuring the view before trying to get the height and width.
Example of use:
layoutView(view);
int height = view.getHeight();
//...
void layoutView(View view) {
view.setDrawingCacheEnabled(true);
int wrapContentSpec =
MeasureSpec.makeMeasureSpec(MeasureSpec.UNSPECIFIED, MeasureSpec.UNSPECIFIED);
view.measure(wrapContentSpec, wrapContentSpec);
view.layout(0, 0, view.getMeasuredWidth(), view.getMeasuredHeight());
}
Try this out, it works:
InputStream in_s =
getClass().getClassLoader().getResourceAsStream("TopBrands.xml");
If you get a Null Value Exception, try this (with class TopBrandData
):
InputStream in_s1 =
TopBrandData.class.getResourceAsStream("/assets/TopBrands.xml");
SELECT MAX(Salary) FROM Employee WHERE Salary NOT IN (SELECT MAX(Salary) FROM Employee )
This query will return the maximum salary, from the result - which not contains maximum salary from overall table.
From react-native --help
uninstall [options] uninstall and unlink native dependencies
Ex:
react-native uninstall react-native-vector-icons
It will uninstall and unlink its dependencies.
Simply add a -h
after adding your credentials using a -u -p
, and it will run with elevated privileges.
You must use LEFT JOIN
instead of INNER JOIN
SELECT person.person_id, COUNT(appointment.person_id) AS "number_of_appointments"
FROM person
LEFT JOIN appointment ON person.person_id = appointment.person_id
GROUP BY person.person_id;
Adding to what @Hitesh-sahu said you need all the VC++ redistribution packages for it to turn green. I referred to this thread from wampserver forum. You can install this little tool (check_vcredist) from the tools section here which will check if all the needed dependencies are installed (see attached image) and it will also provide links to missing ones. If you are using x64 version of Windows like I do and your wampserver does not turn green even after installing all the packages then uninstall and do a fresh installation again. Hope it helps.
Use my Plugin :
$.fn.removeCss=function(all){
if(all===true){
$(this).removeAttr('class');
}
return $(this).removeAttr('style')
}
For your case ,Use it as following :
$(<mySelector>).removeCss();
or
$(<mySelector>).removeCss(false);
if you want to remove also CSS defined in its classes :
$(<mySelector>).removeCss(true);
You can use the function toprettyxml()
from xml.dom.minidom
in order to do that:
def prettify(elem):
"""Return a pretty-printed XML string for the Element.
"""
rough_string = ElementTree.tostring(elem, 'utf-8')
reparsed = minidom.parseString(rough_string)
return reparsed.toprettyxml(indent="\t")
The idea is to print your Element
in a string, parse it using minidom and convert it again in XML using the toprettyxml
function.
Source: http://pymotw.com/2/xml/etree/ElementTree/create.html
If you want to convert b'\x61' to 97 or '0x61', you can try this:
[python3.5]
>>>from struct import *
>>>temp=unpack('B',b'\x61')[0] ## convert bytes to unsigned int
97
>>>hex(temp) ##convert int to string which is hexadecimal expression
'0x61'
In Python 3, urllib.quote
has been moved to urllib.parse.quote
and it does handle unicode by default.
>>> from urllib.parse import quote
>>> quote('/test')
'/test'
>>> quote('/test', safe='')
'%2Ftest'
>>> quote('/El Niño/')
'/El%20Ni%C3%B1o/'
ORDER BY article_rating ASC , article_time DESC
DESC
at the end will sort by both columns descending. You have to specify ASC
if you want it otherwise
Try this
<input type="submit"
value="HOME"
onclick="goHome()"
style="font-size : 20px; width: 100%; height: 100px;" />
HTML
<div id='a'>
<div>
<a class='click'>abc</a>
</div>
</div>
You could use the XPATH as :
//div[@id='a']//a[@class='click']
output
<a class="click">abc</a>
That said your Python code should be as :
driver.find_element_by_xpath("//div[@id='a']//a[@class='click']")
row = $("body").find('#' + row_id);
More importantly doing the additional body.find has no impact on performance. The proper way to do this is simply:
row = $('#' + row_id);
I just hit this issue myself, and neither this nor any of the other answers on the net solved my issue. For me it was a strange one whereby the virtual directory had been created on a different branch in another source control server (basically, we upgraded from TFS 2010 to 2013) and the solution somehow remembered it's mapping.
Anyway, I clicked the "Create Virtual Directory" button again, in the Properties of the Service project. It gave me a message about being mapped to a different folder and would I like to update it. I clicked yes, and that fixed the issue.
All of the preg_replace()
solutions above have issues of single line comments, conditional comments and other pitfalls. I'd recommend taking advantage of the well-tested Minify project rather than creating your own regex from scratch.
In my case I place the following code at the top of a PHP page to minify it:
function sanitize_output($buffer) {
require_once('min/lib/Minify/HTML.php');
require_once('min/lib/Minify/CSS.php');
require_once('min/lib/JSMin.php');
$buffer = Minify_HTML::minify($buffer, array(
'cssMinifier' => array('Minify_CSS', 'minify'),
'jsMinifier' => array('JSMin', 'minify')
));
return $buffer;
}
ob_start('sanitize_output');
1 use command
show create table test.location
Not a single answer does what was asked in vanilla JS, and I want a vanilla answer so I made it myself.
clientWidth includes padding and offsetWidth includes everything else (jsfiddle link). What you want is to get the computed style (jsfiddle link).
function getInnerWidth(elem) {
return parseFloat(window.getComputedStyle(elem).width);
}
EDIT: getComputedStyle
is non-standard, and can return values in units other than pixels. Some browsers also return a value which takes the scrollbar into account if the element has one (which in turn gives a different value than the width set in CSS). If the element has a scrollbar, you would have to manually calculate the width by removing the margins and paddings from the offsetWidth
.
function getInnerWidth(elem) {
var style = window.getComputedStyle(elem);
return elem.offsetWidth - parseFloat(style.paddingLeft) - parseFloat(style.paddingRight) - parseFloat(style.borderLeft) - parseFloat(style.borderRight) - parseFloat(style.marginLeft) - parseFloat(style.marginRight);
}
With all that said, this is probably not an answer I would recommend following with my current experience, and I would resort to using methods that don't rely on JavaScript as much.
As others have already said, type hinting currently only works for object types. But I think the particular error you've triggered might be in preparation of the upcoming string type SplString.
In theory it behaves like a string, but since it is an object would pass the object type verification. Unfortunately it's not yet in PHP 5.3, might come in 5.4, so haven't tested this.
You need to determine whether this is a problem with TortoiseSVN, your Subversion repository, or your network connection.
http://<server>/svn/<module>
and not http://<server>/svn/
usvn
/<module>
. Is that /usvn/
directory suppose to be there?
Those commands won't work in the default sed
that comes with Mac OS X.
From man 1 sed
:
-i extension
Edit files in-place, saving backups with the specified
extension. If a zero-length extension is given, no backup
will be saved. It is not recommended to give a zero-length
extension when in-place editing files, as you risk corruption
or partial content in situations where disk space is exhausted, etc.
Tried
sed -i '.bak' 's/old/new/g' logfile*
and
for i in logfile*; do sed -i '.bak' 's/old/new/g' $i; done
Both work fine.