try this ,hope it helps
select user_display_image as user_image,
user_display_name as user_name,
invitee_phone,
(
CASE
WHEN invitee_status=1 THEN "attending"
WHEN invitee_status=2 THEN "unsure"
WHEN invitee_status=3 THEN "declined"
WHEN invitee_status=0 THEN "notreviwed" END
) AS invitee_status
FROM your_tbl
Use the first; it directly tries to check if something is defined in environ
. Though the second form works equally well, it's lacking semantically since you get a value back if it exists and only use it for a comparison.
You're trying to see if something is present in environ
, why would you get just to compare it and then toss it away?
That's exactly what getenv
does:
Get an environment variable, return
None
if it doesn't exist. The optional second argument can specify an alternate default.
(this also means your check could just be if getenv("FOO")
)
you don't want to get it, you want to check for it's existence.
Either way, getenv
is just a wrapper around environ.get
but you don't see people checking for membership in mappings with:
from os import environ
if environ.get('Foo') is not None:
To summarize, use:
if "FOO" in os.environ:
pass
if you just want to check for existence, while, use getenv("FOO")
if you actually want to do something with the value you might get.
I don't believe the expression is sensical as it is.
Elvis means "if truthy, use the value, else use this other thing."
Your "other thing" is a closure, and the value is status != null
, neither of which would seem to be what you want. If status
is null, Elvis says true
. If it's not, you get an extra layer of closure.
Why can't you just use:
(it.description == desc) && ((status == null) || (it.status == status))
Even if that didn't work, all you need is the closure to return the appropriate value, right? There's no need to create two separate find
calls, just use an intermediate variable.
I am using the following to conditionally set the class attr when ng-class can't be used (for example when styling SVG):
ng-attr-class="{{someBoolean && 'class-when-true' || 'class-when-false' }}"
The same approach should work for other attribute types.
(I think you need to be on latest unstable Angular to use ng-attr-, I'm currently on 1.1.4)
I have published an article on working with AngularJS+SVG that talks about this and related issues. http://www.codeproject.com/Articles/709340/Implementing-a-Flowchart-with-SVG-and-AngularJS
Well there are lot of answeres already provided and lot are making sense too.
Some mentioned it is just warning and some giving a temp way to disable warnings. All that will work but add risk when number of transactions in your DB is high.
I came across similar situation today and here is very simple query I came up with...
declare
begin
execute immediate '
create table "TBL" ("ID" number not null)';
exception when others then
if SQLCODE = -955 then null; else raise; end if;
end;
/
955 is failure code.
This is simple, if exception come while running query it will be suppressed. and you can use same for SQL
or Oracle
.
The provided answers are the best solution in your case, and they are what I do as well, but if your text is printed by a function or class method you could do the same as in Javascript as well
function hello(){
echo 'HELLO';
}
$print = true;
$print && hello();
jQuery is just a library which enhances the capabilities of the DOM within a web browser; the underlying language is JavaScript, which has, as you might hope to expect from a programming language, the ability to perform conditional logic, i.e.
if( condition ) {
// do something
}
Testing two conditions is straightforward, too:
if( A && B ) {
// do something
}
Dear God, I hope this isn't a troll...
$Group
is an object, but you will actually need to check if $Group.samaccountname.StartsWith("string")
.
Change $Group.StartsWith("S_G_")
to $Group.samaccountname.StartsWith("S_G_")
.
You may try this example:
<form>_x000D_
<h1>Hello! I'm duke! What's you name?</h1>_x000D_
<input type="text" name="user">_x000D_
<br>_x000D_
<br>_x000D_
<input type="submit" value="submit"> _x000D_
<input type="reset">_x000D_
</form>_x000D_
<h1>Hello ${param.user}</h1> _x000D_
<!-- its Expression Language -->
_x000D_
for jQuery 1.6 or higher:
if ($('input.checkbox_check').prop('checked')) {
//blah blah
}
the cross-browser-compatible way to determine if a checkbox is checked is to use the property https://api.jquery.com/prop/
The explanation with the examples was key to helping mine, but the issue that i came was when I copied it didn't work so I had to mess with it in several ways to get it to work right. (I'm super new at R, and had some issues with the third ifelse due to lack of knowledge).
so for those who are super new to R running into issues...
ifelse(x < -2,"pretty negative", ifelse(x < 1,"close to zero", ifelse(x < 3,"in [1, 3)","large")##all one line
)#normal tab
)
(i used this in a function so it "ifelse..." was tabbed over one, but the last ")" was completely to the left)
I remember reading that there are 2 kinds of Switch statements in Java bytecode. (I think it was in 'Java Performance Tuning' One is a very fast implementation which uses the switch statement's integer values to know the offset of the code to be executed. This would require all integers to be consecutive and in a well-defined range. I'm guessing that using all the values of an Enum would fall in that category too.
I agree with many other posters though... it may be premature to worry about this, unless this is very very hot code.
I fear this might turn out to BE the long way round but could depend on how big your data set is – presumably more than four months for example.
Assuming your data is in ColumnA:C
and has column labels in Row 1, also that Month is formatted mmm
(this last for ease of sorting):
D2
=IF(AND(A2=A1,C2=C1),D1+1,1)
(One way to deal with what is the tricky issue of multiple entries for the same person for the same month).A1:D(last occupied row no.)
F1
.I’m hoping this would be adequate for your needs because pivot table should automatically update (provided range is appropriate) in response to additional data with refresh. If not (you hard taskmaster), continue but beware that the following steps would need to be repeated each time the source data changes.
L1
.L1
and shift down.L1
.ColumnL
, select Row Labels
and numeric values.L2:L(last selected cell)
Happy to explain further/try again (I've not really tested this) if does not suit.
EDIT (To avoid second block of steps above and facilitate updating for source data changes)
.0. Before first step 2. add a blank row at the very top and move A2:D2
up.
.2. Adjust cell references accordingly (in D3
=IF(AND(A3=A2,C3=C2),D2+1,1)
.
.3. Create pivot table from A:D
.6. Overwrite Row Labels
with Name
.
.7. PivotTable Tools, Design, Report Layout, Show in Tabular Form and sort rows and columns A>Z.
.8. Hide Row1
, ColumnG
and rows and columns that show (blank)
.
Steps .0. and .2. in the edit are not required if the pivot table is in a different sheet from the source data (recommended).
Step .3. in the edit is a change to simplify the consequences of expanding the source data set. However introduces (blank)
into pivot table that if to be hidden may need adjustment on refresh. So may be better to adjust source data range each time that changes instead: PivotTable Tools, Options, Change Data Source, Change Data Source, Select a table or range). In which case copy rather than move in .0.
This code works for me:
#!/bin/sh
argc=$#
echo $argc
if [ $argc -eq 0 -o $argc -eq 1 ]; then
echo "foo"
else
echo "bar"
fi
I don't think sh supports "==". Use "=" to compare strings and -eq to compare ints.
man test
for more details.
You don't need to call ValidateForm()
twice, as you are above. You can just do
if(!ValidateForm()){
..
} else ...
I think that will solve the issue as above it looks like your comparing true/false
to the string equivalent 'false'
.
Check to make sure that both score and array[x] are numerical types. You might be comparing an integer to a string...which is heartbreakingly possible in Python 2.x.
>>> 2 < "2"
True
>>> 2 > "2"
False
>>> 2 == "2"
False
Edit
Further explanation: How does Python compare string and int?
If statement is used for checking just one condition quickly.
When you have multiple options, use <xsl:choose>
as illustrated below:
<xsl:choose>
<xsl:when test="$CreatedDate > $IDAppendedDate">
<h2>mooooooooooooo</h2>
</xsl:when>
<xsl:otherwise>
<h2>dooooooooooooo</h2>
</xsl:otherwise>
</xsl:choose>
Also, you can use multiple <xsl:when>
tags to express If .. Else If
or Switch
patterns as illustrated below:
<xsl:choose>
<xsl:when test="$CreatedDate > $IDAppendedDate">
<h2>mooooooooooooo</h2>
</xsl:when>
<xsl:when test="$CreatedDate = $IDAppendedDate">
<h2>booooooooooooo</h2>
</xsl:when>
<xsl:otherwise>
<h2>dooooooooooooo</h2>
</xsl:otherwise>
</xsl:choose>
The previous example would be equivalent to the pseudocode below:
if ($CreatedDate > $IDAppendedDate)
{
output: <h2>mooooooooooooo</h2>
}
else if ($CreatedDate = $IDAppendedDate)
{
output: <h2>booooooooooooo</h2>
}
else
{
output: <h2>dooooooooooooo</h2>
}
If the class implements comparable, you could also do
int compRes = a.compareTo(b);
if(compRes < 0 || compRes > 0)
System.out.println("not equal");
else
System.out.println("equal);
doesn't use a !
, though not particularly useful, or readable....
use the variable, Oracle does not support SQL in that context without an INTO. With a properly named variable your code will be more legible anyway.
You can also use ng-template, I think that would be more efficient while run time :)
<div ng-if="!test.view; else somethingElse">1</div>
<ng-template #somethingElse>
<div>2</div>
</ng-template>
Cheers
As a lot of people have said, if you're looking for an actual 1 line if then:
if (Boolean_expression) do.something();
is preferred. However, if you're looking to do an if/else then ternary is your friend (and also super cool):
(Boolean_expression) ? do.somethingForTrue() : do.somethingForFalse();
ALSO:
var something = (Boolean_expression) ? trueValueHardware : falseATRON;
However, I saw one very cool example. Shouts to @Peter-Oslson for &&
(Boolean_expression) && do.something();
Lastly, it's not an if statement but executing things in a loop with either a map/reduce or Promise.resolve() is fun too. Shouts to @brunettdan
Based on suggestions from @jaimedash and @Old_Mortality I found a solution:
DF$Den <- ifelse(DF$Denial1 < 1 & !is.na(DF$Denial1) | DF$Denial2 < 1 &
!is.na(DF$Denial2) | DF$Denial3 < 1 & !is.na(DF$Denial3), "0", "1")
Then to ensure a value of NA if all values of the conditional variables are NA:
DF$Den <- ifelse(is.na(DF$Denial1) & is.na(DF$Denial2) & is.na(DF$Denial3),
NA, DF$Den)
You are testing if the values of the variables error
and Already
are present in RepoOutput[RepoName.index(repo)]
. If these variables don't exist then an undefined object is used.
Both of your if
and elif
tests therefore are false; there is no undefined object in the value of RepoOutput[RepoName.index(repo)].
I think you wanted to test if certain strings are in the value instead:
{% if "error" in RepoOutput[RepoName.index(repo)] %}
<td id="error"> {{ RepoOutput[RepoName.index(repo)] }} </td>
{% elif "Already" in RepoOutput[RepoName.index(repo) %}
<td id="good"> {{ RepoOutput[RepoName.index(repo)] }} </td>
{% else %}
<td id="error"> {{ RepoOutput[RepoName.index(repo)] }} </td>
{% endif %}
</tr>
Other corrections I made:
{% elif ... %}
instead of {$ elif ... %}
.</tr>
tag out of the if
conditional structure, it needs to be there always.id
attributeNote that most likely you want to use a class
attribute instead here, not an id
, the latter must have a value that must be unique across your HTML document.
Personally, I'd set the class value here and reduce the duplication a little:
{% if "Already" in RepoOutput[RepoName.index(repo)] %}
{% set row_class = "good" %}
{% else %}
{% set row_class = "error" %}
{% endif %}
<td class="{{ row_class }}"> {{ RepoOutput[RepoName.index(repo)] }} </td>
Simple if-else statement in SQL Server:
DECLARE @val INT;
SET @val = 15;
IF @val < 25
PRINT 'Hi Ravi Anand';
ELSE
PRINT 'By Ravi Anand.';
GO
Nested If...else statement in SQL Server -
DECLARE @val INT;
SET @val = 15;
IF @val < 25
PRINT 'Hi Ravi Anand.';
ELSE
BEGIN
IF @val < 50
PRINT 'what''s up?';
ELSE
PRINT 'Bye Ravi Anand.';
END;
GO
Quote:
The "-a" operator also doesn't work:
if [ $STATUS -ne 200 ] -a [[ "$STRING" != "$VALUE" ]]
For a more elaborate explanation: [
and ]
are not Bash reserved words. The if
keyword introduces a conditional to be evaluated by a job (the conditional is true if the job's return value is 0
or false otherwise).
For trivial tests, there is the test
program (man test
).
As some find lines like if test -f filename; then foo bar; fi
, etc. annoying, on most systems you find a program called [
which is in fact only a symlink to the test
program. When test
is called as [
, you have to add ]
as the last positional argument.
So if test -f filename
is basically the same (in terms of processes spawned) as if [ -f filename ]
. In both cases the test
program will be started, and both processes should behave identically.
Here's your mistake: if [ $STATUS -ne 200 ] -a [[ "$STRING" != "$VALUE" ]]
will parse to if
+ some job, the job being everything except the if
itself. The job is only a simple command (Bash speak for something which results in a single process), which means the first word ([
) is the command and the rest its positional arguments. There are remaining arguments after the first ]
.
Also not, [[
is indeed a Bash keyword, but in this case it's only parsed as a normal command argument, because it's not at the front of the command.
Nested if's in Excel Are ugly:
=If(G2 < 1, .1, IF(G2 < 5,.15,if(G2 < 15,.2,if(G2 < 30,.5,if(G2 < 100,.1,1.3)))))
That should cover it.
A complete answer for optional content in the header of a VB.NET aspx page using a master page:
<%@ Page Language="vb" AutoEventWireup="false" MasterPageFile="~/Site.Master" CodeBehind="some_vb_page.aspx.vb" Inherits="some_vb_page" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server">
<% If Request.QueryString("id_query_param") = 123 Then 'Add some VB comment here,
'which will not be visible in the rendered source code of the aspx page later %>
<!-- add some html content depending on -->
<!-- the condition in the if statement: -->
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.8/jquery.min.js" type="text/javascript" charset="utf-8"></script>
<% End If %>
</asp:Content>
Where your current page url is something like:
I know its been a while since the original post but I like using CTE's and this worked for me:
WITH cte_table_a
AS
(
SELECT [id] [id]
, MAX([value]) [value]
FROM table_a
GROUP BY [id]
)
UPDATE table_b
SET table_b.code = CASE WHEN cte_table_a.[value] IS NOT NULL THEN cte_table_a.[value] ELSE 124 END
FROM table_b
LEFT OUTER JOIN cte_table_a
ON table_b.id = cte_table_a.id
Yes. It is also true for for
scope. But not functions of course.
In your example: if the condition in the if
statement is false, x
will not be defined though.
The zmbq solution is good, but cannot be used in all situations, such as inside a block of code like a FOR DO(...) loop.
An alternative is to use an indicator variable. Initialize it to be undefined, and then define it only if any one of the OR conditions is true. Then use IF DEFINED as a final test - no need to use delayed expansion.
FOR ..... DO (
set "TRUE="
IF cond1 set TRUE=1
IF cond2 set TRUE=1
IF defined TRUE (
...
) else (
...
)
)
You could add the ELSE IF logic that arasmussen uses on the grounds that it might perform a wee bit faster if the 1st condition is true, but I never bother.
Addendum - This is a duplicate question with nearly identical answers to Using an OR in an IF statement WinXP Batch Script
Final addendum - I almost forgot my favorite technique to test if a variable is any one of a list of case insensitive values. Initialize a test variable containing a delimitted list of acceptable values, and then use search and replace to test if your variable is within the list. This is very fast and uses minimal code for an arbitrarily long list. It does require delayed expansion (or else the CALL %%VAR%% trick). Also the test is CASE INSENSITIVE.
set "TEST=;val1;val2;val3;val4;val5;"
if "!TEST:;%VAR%;=!" neq "!TEST!" (echo true) else (echo false)
The above can fail if VAR contains =
, so the test is not fool-proof.
If doing the test within a block where delayed expansion is needed to access current value of VAR then
for ... do (
set "TEST=;val1;val2;val3;val4;val5;"
for /f %%A in (";!VAR!;") do if "!TEST:%%A=!" neq "!TEST!" (echo true) else (echo false)
)
FOR options like "delims=" might be needed depending on expected values within VAR
The above strategy can be made reliable even with =
in VAR by adding a bit more code.
set "TEST=;val1;val2;val3;val4;val5;"
if "!TEST:;%VAR%;=!" neq "!TEST!" if "!TEST:;%VAR%;=;%VAR%;"=="!TEST!" echo true
But now we have lost the ability of providing an ELSE clause unless we add an indicator variable. The code has begun to look a bit "ugly", but I think it is the best performing reliable method for testing if VAR is any one of an arbitrary number of case-insensitive options.
Finally there is a simpler version that I think is slightly slower because it must perform one IF for each value. Aacini provided this solution in a comment to the accepted answer in the before mentioned link
for %%A in ("val1" "val2" "val3" "val4" "val5") do if "%VAR%"==%%A echo true
The list of values cannot include the * or ? characters, and the values and %VAR%
should not contain quotes. Quotes lead to problems if the %VAR%
also contains spaces or special characters like ^
, &
etc. One other limitation with this solution is it does not provide the option for an ELSE clause unless you add an indicator variable. Advantages are it can be case sensitive or insensitive depending on presence or absence of IF /I
option.
I'm a little late to the party but for future readers.
From what i can tell, you're just wanting to toggle the visibility state right? Why not just use the !
operator?
jxPanel6.setVisible(!jxPanel6.isVisible);
It's not an if statement but I prefer this method for code related to your example.
There are a couple of important things to know about bash's [[ ]]
construction. The first:
Word splitting and pathname expansion are not performed on the words between the
[[
and]]
; tilde expansion, parameter and variable expansion, arithmetic expansion, command substitution, process substitution, and quote removal are performed.
The second thing:
An additional binary operator, ‘=~’, is available,... the string to the right of the operator is considered an extended regular expression and matched accordingly... Any part of the pattern may be quoted to force it to be matched as a string.
Consequently, $v
on either side of the =~
will be expanded to the value of that variable, but the result will not be word-split or pathname-expanded. In other words, it's perfectly safe to leave variable expansions unquoted on the left-hand side, but you need to know that variable expansions will happen on the right-hand side.
So if you write: [[ $x =~ [$0-9a-zA-Z] ]]
, the $0
inside the regex on the right will be expanded before the regex is interpreted, which will probably cause the regex to fail to compile (unless the expansion of $0
ends with a digit or punctuation symbol whose ascii value is less than a digit). If you quote the right-hand side like-so [[ $x =~ "[$0-9a-zA-Z]" ]]
, then the right-hand side will be treated as an ordinary string, not a regex (and $0
will still be expanded). What you really want in this case is [[ $x =~ [\$0-9a-zA-Z] ]]
Similarly, the expression between the [[
and ]]
is split into words before the regex is interpreted. So spaces in the regex need to be escaped or quoted. If you wanted to match letters, digits or spaces you could use: [[ $x =~ [0-9a-zA-Z\ ] ]]
. Other characters similarly need to be escaped, like #
, which would start a comment if not quoted. Of course, you can put the pattern into a variable:
pat="[0-9a-zA-Z ]"
if [[ $x =~ $pat ]]; then ...
For regexes which contain lots of characters which would need to be escaped or quoted to pass through bash's lexer, many people prefer this style. But beware: In this case, you cannot quote the variable expansion:
# This doesn't work:
if [[ $x =~ "$pat" ]]; then ...
Finally, I think what you are trying to do is to verify that the variable only contains valid characters. The easiest way to do this check is to make sure that it does not contain an invalid character. In other words, an expression like this:
valid='0-9a-zA-Z $%&#' # add almost whatever else you want to allow to the list
if [[ ! $x =~ [^$valid] ]]; then ...
!
negates the test, turning it into a "does not match" operator, and a [^...]
regex character class means "any character other than ...
".
The combination of parameter expansion and regex operators can make bash regular expression syntax "almost readable", but there are still some gotchas. (Aren't there always?) One is that you could not put ]
into $valid
, even if $valid
were quoted, except at the very beginning. (That's a Posix regex rule: if you want to include ]
in a character class, it needs to go at the beginning. -
can go at the beginning or the end, so if you need both ]
and -
, you need to start with ]
and end with -
, leading to the regex "I know what I'm doing" emoticon: [][-]
)
There isn't any need for ternary if/then/else. In my opinion your question calls for this answer:
row = [unicode((x or '').strip()) for x in row]
This is more a clarification than an answer! Yes, the clue is in the error message:
[hi: command not found
which shows you that your "hi" has been concatenated to the "[".
Unlike in more traditional programming languages, in Bash, "[" is a command just like the more obvious "ls", etc. - it's not treated specially just because it's a symbol, hence the "[" and the (substituted) "$s1" which are immediately next to each other in your question, are joined (as is correct for Bash), and it then tries to find a command in that position: [hi - which is unknown to Bash.
In C and some other languages, the "[" would be seen as a different "character class" and would be disjoint from the following "hi".
Hence you require a space after the opening "[".
You need to give your submit <input>
a name or it won't be available using $_POST['submit']
:
<p><input type="submit" value="Submit" name="submit" /></p>
according to the mySQL reference manual this the syntax of using if and else statement :
IF search_condition THEN statement_list [ELSEIF search_condition THEN statement_list] ... [ELSE statement_list] END IF
So regarding your query :
x = IF((action=2)&&(state=0),1,2);
or you can use
IF ((action=2)&&(state=0)) then
state = 1;
ELSE
state = 2;
END IF;
There is good example in this link : http://easysolutionweb.com/sql-pl-sql/how-to-use-if-and-else-in-mysql/
Like sgibb said it was an if problem, it had nothing to do with | or ||.
Here is another way to solve your problem:
for (i in 1:nrow(trip)) {
if(trip$Ref.y[i]=='G' & trip$Variant.y[i]=='T'|trip$Ref.y[i]=='C' & trip$Variant.y[i]=='A') {
trip[i, 'mutType'] <- "G:C to T:A"
}
else if(trip$Ref.y[i]=='G' & trip$Variant.y[i]=='C'|trip$Ref.y[i]=='C' & trip$Variant.y[i]=='G') {
trip[i, 'mutType'] <- "G:C to C:G"
}
else if(trip$Ref.y[i]=='G' & trip$Variant.y[i]=='A'|trip$Ref.y[i]=='C' & trip$Variant.y[i]=='T') {
trip[i, 'mutType'] <- "G:C to A:T"
}
else if(trip$Ref.y[i]=='A' & trip$Variant.y[i]=='T'|trip$Ref.y[i]=='T' & trip$Variant.y[i]=='A') {
trip[i, 'mutType'] <- "A:T to T:A"
}
else if(trip$Ref.y[i]=='A' & trip$Variant.y[i]=='G'|trip$Ref.y[i]=='T' & trip$Variant.y[i]=='C') {
trip[i, 'mutType'] <- "A:T to G:C"
}
else if(trip$Ref.y[i]=='A' & trip$Variant.y[i]=='C'|trip$Ref.y[i]=='T' & trip$Variant.y[i]=='G') {
trip[i, 'mutType'] <- "A:T to C:G"
}
}
Here's my very personal take: long conditions are (in my view) a code smell that suggests refactoring into a boolean-returning function/method. For example:
def is_action__required(...):
return (cond1 == 'val1' and cond2 == 'val2'
and cond3 == 'val3' and cond4 == 'val4')
Now, if I found a way to make multi-line conditions look good, I would probably find myself content with having them and skip the refactoring.
On the other hand, having them perturb my aesthetic sense acts as an incentive for refactoring.
My conclusion, therefore, is that multiple line conditions should look ugly and this is an incentive to avoid them.
Your formula should be of the form =IF(X2 >= 85,0.559,IF(X2 >= 80,0.327,IF(X2 >=75,0.255,0)))
. This simulates the ELSE-IF
operand Excel lacks. Your formulas were using two conditions in each, but the second parameter of the IF
formula is the value to use if the condition evaluates to true
. You can't chain conditions in that manner.
Because your else
isn't attached to anything. The if
without braces only encompasses the single statement that immediately follows it.
if (choice==5)
{
System.out.println("End of Game\n Thank you for playing with us!");
break;
}
else
{
System.out.println("Not a valid choice!\n Please try again...\n");
}
Not using braces is generally viewed as a bad practice because it can lead to the exact problems you encountered.
In addition, using a switch
here would make more sense.
int choice;
boolean keepGoing = true;
while(keepGoing)
{
System.out.println("---> Your choice: ");
choice = input.nextInt();
switch(choice)
{
case 1:
playGame();
break;
case 2:
loadGame();
break;
// your other cases
// ...
case 5:
System.out.println("End of Game\n Thank you for playing with us!");
keepGoing = false;
break;
default:
System.out.println("Not a valid choice!\n Please try again...\n");
}
}
Note that instead of an infinite for
loop I used a while(boolean)
, making it easy to exit the loop. Another approach would be using break with labels.
The first one is easier, because, if you read it left to right you get: "If something AND somethingelse AND somethingelse THEN" , which is an easy to understand sentence. The second example reads "If something THEN if somethingelse THEN if something else THEN", which is clumsy.
Also, consider if you wanted to use some ORs in your clause - how would you do that in the second style?
Working test example
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.apache.commons.lang3.StringUtils;
public class PaserNo {
public static void main(String args[]) {
String text = "gg";
if (!StringUtils.isBlank(text)) {
if (stringContainsNumber(text)) {
int no=Integer.parseInt(text.trim());
System.out.println("inside"+no);
} else {
System.out.println("Outside");
}
}
System.out.println("Done");
}
public static boolean stringContainsNumber(String s) {
Pattern p = Pattern.compile("[0-9]");
Matcher m = p.matcher(s);
return m.find();
}
}
Still your code can be break by "1a" etc so you need to check exception
if (!StringUtils.isBlank(studentNbr)) {
try{
if (isStringContainsNumber(studentNbr)){
_account.setStudentNbr(Integer.parseInt(studentNbr.trim()));
}
}catch(Exception e){
e.printStackTrace();
logger.info("Exception during parse studentNbr"+e.getMessage());
}
}
Method for checking no is string or not
private boolean isStringContainsNumber(String s) {
Pattern p = Pattern.compile("[0-9]");
Matcher m = p.matcher(s);
return m.find();
}
Try negation operator !
before $(this)
:
if (!$(this).parent().next().is('ul')){
Here's a compact way to do something different in all four cases:
if(empty($youtube)) {
if(empty($link)) {
# both empty
} else {
# only $youtube not empty
}
} else {
if(empty($link)) {
# only $link empty
} else {
# both not empty
}
}
If you want to use an expression instead, you can use ?:
instead:
echo empty($youtube) ? ( empty($link) ? 'both empty' : 'only $youtube not empty' )
: ( empty($link) ? 'only $link empty' : 'both not empty' );
In JavaScript's if-then-else
there is technically no elseif
branch.
But it works if you write it this way:
if (condition) {
} else if (other_condition) {
} else {
}
To make it obvious what is really happening you can expand the above code using an additional pair of {
and }
:
if (condition) {
} else {
if (other_condition) {
} else {
}
}
In the first example we're using some implicit JS behavior about {}
uses. We can omit these curly braces if there is only one statement inside. Which is the case in this construct, because the inner if-then-else
only counts as one statment. The truth is that those are 2 nested if-statements. And not an if-statement with 2 branches, as it may appear on first sight.
This way it resembles the elseif
that is present in other languages.
It is a question of style and preference which way you use it.
The break
keyword does exactly that. Here is a contrived example:
public static void main(String[] args) {
int i = 0;
while (i++ < 10) {
if (i == 5) break;
}
System.out.println(i); //prints 5
}
If you were actually using nested loops, you would be able to use labels.
Presumably this would work:
IF(compliment = 'set' OR compliment = 'Y' OR compliment = 1, 'Y', 'N') AS customer_compliment
It's a little tricky because of the nested IFs but here is my answer (confirmed in Google Spreadsheets):
=IF(AND(A2>=0, A2<500), "Less than 500",
IF(AND(A2>=500, A2<1000), "Between 500 and 1000",
IF(AND(A2>=1000, A2<1500), "Between 1000 and 1500",
IF(AND(A2>=1500, A2<2000), "Between 1500 and 2000", "Undefined"))))
The IF/THEN/ELSE construct you are using is only valid in stored procedures and functions. Your query will need to be restructured because you can't use the IF() function to control the flow of the WHERE clause like this.
The IF() function that can be used in queries is primarily meant to be used in the SELECT portion of the query for selecting different data based on certain conditions, not so much to be used in the WHERE portion of the query:
SELECT IF(JQ.COURSE_ID=0, 'Some Result If True', 'Some Result If False'), OTHER_COLUMNS
FROM ...
WHERE ...
try like this
if (!(a | b)) {
//blahblah
}
It's same with
if (a | b) {}
else {
// blahblah
}
Martijn's answer explains what None
is in Python, and correctly states that the book is misleading. Since Python programmers as a rule would never say
Assigning a value of
None
to a variable is one way to reset it to its original, empty state.
it's hard to explain what Briggs means in a way which makes sense and explains why no one here seems happy with it. One analogy which may help:
In Python, variable names are like stickers put on objects. Every sticker has a unique name written on it, and it can only be on one object at a time, but you could put more than one sticker on the same object, if you wanted to. When you write
F = "fork"
you put the sticker "F" on a string object "fork"
. If you then write
F = None
you move the sticker to the None
object.
What Briggs is asking you to imagine is that you didn't write the sticker "F"
, there was already an F
sticker on the None
, and all you did was move it, from None
to "fork"
. So when you type F = None
, you're "reset[ting] it to its original, empty state", if we decided to treat None
as meaning empty state
.
I can see what he's getting at, but that's a bad way to look at it. If you start Python and type print(F)
, you see
>>> print(F)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
NameError: name 'F' is not defined
and that NameError
means Python doesn't recognize the name F
, because there is no such sticker. If Briggs were right and F = None
resets F
to its original state, then it should be there now, and we should see
>>> print(F)
None
like we do after we type F = None
and put the sticker on None
.
So that's all that's going on. In reality, Python comes with some stickers already attached to objects (built-in names), but others you have to write yourself with lines like F = "fork"
and A = 2
and c17 = 3.14
, and then you can stick them on other objects later (like F = 10
or F = None
; it's all the same.)
Briggs is pretending that all possible stickers you might want to write were already stuck to the None
object.
A single &
(not double &&
) is enough or as the top answer suggests you can use 'and'.
I also found this in pandas
cities['Is wide and has saint name'] = (cities['Population'] > 1000000)
& cities['City name'].apply(lambda name: name.startswith('San'))
if we replace the "&" with "and", it won't work.
You can use .is(':visible')
to test if something is visible and .is(':hidden')
to test for the opposite:
$('#offers').toggle(!$('#column-left form').is(':visible')); // or:
$('#offers').toggle($('#column-left form').is(':hidden'));
Reference:
You might want indexOf
if (code.indexOf("ST1") >= 0) { ... }
else if (code.indexOf("ST2") >= 0) { ... }
It checks if contains
is anywhere in the string
variable code
. This requires code
to be a string. If you want this solution to be case-insensitive you have to change the case to all the same with either String.toLowerCase()
or String.toUpperCase()
.
You could also work with a switch
statement like
switch (true) {
case (code.indexOf('ST1') >= 0):
document.write('code contains "ST1"');
break;
case (code.indexOf('ST2') >= 0):
document.write('code contains "ST2"');
break;
case (code.indexOf('ST3') >= 0):
document.write('code contains "ST3"');
break;
}?
SEARCH
does not return 0
if there is no match, it returns #VALUE!
. So you have to wrap calls to SEARCH
with IFERROR
.
For example...
=IF(IFERROR(SEARCH("cat", A1), 0), "cat", "none")
or
=IF(IFERROR(SEARCH("cat",A1),0),"cat",IF(IFERROR(SEARCH("22",A1),0),"22","none"))
Here, IFERROR
returns the value from SEARCH
when it works; the given value of 0
otherwise.
In reply to Is there a specific reason?
, here is one interesting application: breaking out of multiple levels of looping.
Here is how it works: the outer loop has a break at the end, so it would only be executed once. However, if the inner loop completes (finds no divisor), then it reaches the else statement and the outer break is never reached. This way, a break in the inner loop will break out of both loops, rather than just one.
for k in [2, 3, 5, 7, 11, 13, 17, 25]:
for m in range(2, 10):
if k == m:
continue
print 'trying %s %% %s' % (k, m)
if k % m == 0:
print 'found a divisor: %d %% %d; breaking out of loop' % (k, m)
break
else:
continue
print 'breaking another level of loop'
break
else:
print 'no divisor could be found!'
For both while
and for
loops, the else
statement is executed at the end, unless break
was used.
In most cases there are better ways to do this (wrapping it into a function or raising an exception), but this works!
If you just want to check the value is in Range, use this:
MIN_VALUE = 1;
MAX_VALUE = 100;
$customValue = min(MAX_VALUE,max(MIN_VALUE,$customValue)));
You can set the cookie after having checked if it exists with a value.
$(document).ready(function(){
if ($.cookie('cookie')) { //if cookie isset
//do stuff here like hide a popup when cookie isset
//document.getElementById("hideElement").style.display = "none";
}else{
var CookieSet = $.cookie('cookie', 'value'); //set cookie
}
});
Another solution is just using not
to get the opposite negation:
<h2 th:if="${potentially_complex_expression}">Hello!</h2>
<span class="xxx" th:if="${not potentially_complex_expression}">Something else</span>
As explained in the documentation, it's the same thing as using th:unless
. As other answers have explained:
Also,
th:if
has an inverse attribute,th:unless
, which we could have used in the previous example instead of using a not inside the OGNL expression
Using not
also works, but IMHO it is more readable to use th:unless
instead of negating the condition with not
.
The comparison needs to be evaluated fully inside EL ${ ... }
, not outside.
<c:if test="${values.type eq 'object'}">
As to the docs, those ${}
things are not JSTL, but EL (Expression Language) which is a whole subject at its own. JSTL (as every other JSP taglib) is just utilizing it. You can find some more EL examples here.
<c:if test="#{bean.booleanValue}" />
<c:if test="#{bean.intValue gt 10}" />
<c:if test="#{bean.objectValue eq null}" />
<c:if test="#{bean.stringValue ne 'someValue'}" />
<c:if test="#{not empty bean.collectionValue}" />
<c:if test="#{not bean.booleanValue and bean.intValue ne 0}" />
<c:if test="#{bean.enumValue eq 'ONE' or bean.enumValue eq 'TWO'}" />
By the way, unrelated to the concrete problem, if I guess your intent right, you could also just call Object#getClass()
and then Class#getSimpleName()
instead of adding a custom getter.
<c:forEach items="${list}" var="value">
<c:if test="${value['class'].simpleName eq 'Object'}">
<!-- code here -->
</c:if>
</c:forEeach>
Like this:
{% if age > 18 %}
{% with patient as p %}
<my html here>
{% endwith %}
{% else %}
{% with patient.parent as p %}
<my html here>
{% endwith %}
{% endif %}
If the html is too big and you don't want to repeat it, then the logic would better be placed in the view. You set this variable and pass it to the template's context:
p = (age > 18 && patient) or patient.parent
and then just use {{ p }} in the template.
you can use in_array function of php
$array=array('abc', 'def', 'hij', 'klm', 'nop');
if (in_array($val,$array))
{
echo 'Value found';
}
You can use ternary operator in java.
Syntax:
Condition ? Block 1 : Block 2
So in your code you can do like this,
name = ((city.getName() == null) ? "N/A" : city.getName());
For more info you can refer this resource.
Wow... there are so many good solutions here!! Of all the solutions above, I agree with @nortally that using the -eq
one liner is the coolest.
I am running GNU bash, version 4.1.5
(Debian). I have also checked this on ksh (SunSO 5.10).
Here is my version of checking if $1
is an integer or not:
if [ "$1" -eq "$1" ] 2>/dev/null
then
echo "$1 is an integer !!"
else
echo "ERROR: first parameter must be an integer."
echo $USAGE
exit 1
fi
This approach also accounts for negative numbers, which some of the other solutions will have a faulty negative result, and it will allow a prefix of "+" (e.g. +30) which obviously is an integer.
Results:
$ int_check.sh 123
123 is an integer !!
$ int_check.sh 123+
ERROR: first parameter must be an integer.
$ int_check.sh -123
-123 is an integer !!
$ int_check.sh +30
+30 is an integer !!
$ int_check.sh -123c
ERROR: first parameter must be an integer.
$ int_check.sh 123c
ERROR: first parameter must be an integer.
$ int_check.sh c123
ERROR: first parameter must be an integer.
The solution provided by Ignacio Vazquez-Abrams was also very neat (if you like regex) after it was explained. However, it does not handle positive numbers with the +
prefix, but it can easily be fixed as below:
[[ $var =~ ^[-+]?[0-9]+$ ]]
Here's a Boolean thing:
if (not suffix == "flac" ) or (not suffix == "cue" ): # WRONG! FAILS
print filename + ' is not a flac or cue file'
but
if not (suffix == "flac" or suffix == "cue" ): # CORRECT!
print filename + ' is not a flac or cue file'
(not a) or (not b) == not ( a and b )
,
is false only if a and b are both true
not (a or b)
is true only if a and be are both false.
You can use length to see if your selector matched anything.
if ($('#MyId').length) {
// do your stuff
}
Update: using .indexOf()
to detect if stat
value is one of arr
elements
Pure JavaScript
var arr = [20,30,40,50,60,70,80,90,100];_x000D_
//or detect equal to all_x000D_
//var arr = [10,10,10,10,10,10,10];_x000D_
var stat = 10;_x000D_
_x000D_
if(arr.indexOf(stat)==-1)alert("stat is not equal to one more elements of array");
_x000D_
No, it's not possible (at least not with arbitrary statements), nor is it desirable. Fitting everything on one line would most likely violate PEP-8 where it is mandated that lines should not exceed 80 characters in length.
It's also against the Zen of Python: "Readability counts". (Type import this
at the Python prompt to read the whole thing).
You can use a ternary expression in Python, but only for expressions, not for statements:
>>> a = "Hello" if foo() else "Goodbye"
Edit:
Your revised question now shows that the three statements are identical except for the value being assigned. In that case, a chained ternary operator does work, but I still think that it's less readable:
>>> i=100
>>> a = 1 if i<100 else 2 if i>100 else 0
>>> a
0
>>> i=101
>>> a = 1 if i<100 else 2 if i>100 else 0
>>> a
2
>>> i=99
>>> a = 1 if i<100 else 2 if i>100 else 0
>>> a
1
Use a collection of some sort - this will make the code more readable and hide away all those constants. A simple way would be with a list:
// Declared with constants
private static List<Integer> myConstants = new ArrayList<Integer>(){{
add(12);
add(16);
add(19);
}};
// Wherever you are checking for presence of the constant
if(myConstants.contains(x)){
// ETC
}
As Bohemian points out the list of constants can be static so it's accessible in more than one place.
For anyone interested, the list in my example is using double brace initialization. Since I ran into it recently I've found it nice for writing quick & dirty list initializations.
A bit late but don't matter...
the question is "How do you use...?" short answer is you are doing it correct
&&
instead of AND
and ||
instead of OR
.
$a = 1
$b = 3
Now,
if ($a == 1 && $b == 1) { TRUE } else { FALSE }
in this case the result is "FALSE" because B is not 1, now what if
if ($a == 1 || $b == 1) { TRUE } else { FALSE }
This will return "TRUE" even if B still not the value we asking for, there is another way to return TRUE without the use of OR / || and that would be XOR
if ($a == 1 xor $b == 1) { TRUE } else { FALSE }
in this case we need only one of our variables to be true BUT NOT BOTH if both are TRUE the result would be FALSE.
I hope this helps...
more in:
http://www.php.net/manual/en/language.operators.logical.php
As the others mentioned, Go
does not support ternary one-liners. However, I wrote a utility function that could help you achieve what you want.
// IfThenElse evaluates a condition, if true returns the first parameter otherwise the second
func IfThenElse(condition bool, a interface{}, b interface{}) interface{} {
if condition {
return a
}
return b
}
Here are some test cases to show how you can use it
func TestIfThenElse(t *testing.T) {
assert.Equal(t, IfThenElse(1 == 1, "Yes", false), "Yes")
assert.Equal(t, IfThenElse(1 != 1, nil, 1), 1)
assert.Equal(t, IfThenElse(1 < 2, nil, "No"), nil)
}
For fun, I wrote more useful utility functions such as:
IfThen(1 == 1, "Yes") // "Yes"
IfThen(1 != 1, "Woo") // nil
IfThen(1 < 2, "Less") // "Less"
IfThenElse(1 == 1, "Yes", false) // "Yes"
IfThenElse(1 != 1, nil, 1) // 1
IfThenElse(1 < 2, nil, "No") // nil
DefaultIfNil(nil, nil) // nil
DefaultIfNil(nil, "") // ""
DefaultIfNil("A", "B") // "A"
DefaultIfNil(true, "B") // true
DefaultIfNil(1, false) // 1
FirstNonNil(nil, nil) // nil
FirstNonNil(nil, "") // ""
FirstNonNil("A", "B") // "A"
FirstNonNil(true, "B") // true
FirstNonNil(1, false) // 1
FirstNonNil(nil, nil, nil, 10) // 10
FirstNonNil(nil, nil, nil, nil, nil) // nil
FirstNonNil() // nil
If you would like to use any of these, you can find them here https://github.com/shomali11/util
if ( ($name eq "tom" and $password eq "123!")
or ($name eq "frank" and $password eq "321!")) {
print "You have gained access.";
}
else {
print "Access denied!";
}
I know its old but
public class SwitchTest {
static final int max = 100000;
public static void main(String[] args) {
int counter1 = 0;
long start1 = 0l;
long total1 = 0l;
int counter2 = 0;
long start2 = 0l;
long total2 = 0l;
boolean loop = true;
start1 = System.currentTimeMillis();
while (true) {
if (counter1 == max) {
break;
} else {
counter1++;
}
}
total1 = System.currentTimeMillis() - start1;
start2 = System.currentTimeMillis();
while (loop) {
switch (counter2) {
case max:
loop = false;
break;
default:
counter2++;
}
}
total2 = System.currentTimeMillis() - start2;
System.out.println("While if/else: " + total1 + "ms");
System.out.println("Switch: " + total2 + "ms");
System.out.println("Max Loops: " + max);
System.exit(0);
}
}
Varying the loop count changes a lot:
While if/else: 5ms Switch: 1ms Max Loops: 100000
While if/else: 5ms Switch: 3ms Max Loops: 1000000
While if/else: 5ms Switch: 14ms Max Loops: 10000000
While if/else: 5ms Switch: 149ms Max Loops: 100000000
(add more statements if you want)
General ternary syntax:
value_true if <test> else value_false
Another way can be:
[value_false, value_true][<test>]
e.g:
count = [0,N+1][count==N]
This evaluates both branches before choosing one. To only evaluate the chosen branch:
[lambda: value_false, lambda: value_true][<test>]()
e.g.:
count = [lambda:0, lambda:N+1][count==N]()
Multiple statements are to be separated by a new line:
If SkyIsBlue Then
StartEngines
Pollute
ElseIf SkyIsRed Then
StopAttack
Vent
ElseIf SkyIsYellow Then
If Sunset Then
Sleep
ElseIf Sunrise or IsMorning Then
Smoke
GetCoffee
Else
Error
End If
Else
Joke
Laugh
End If
for a in someList:
list.append(splitColon.split(a))
You can rewrite the above as:
newlist = [splitColon.split(a) for a in someList]
You could use the ternary operator:
return string.IsNullOrEmpty(strTestString) ? "0" : strTestString
FooTextBox.Text = string.IsNullOrEmpty(strFoo) ? "0" : strFoo;
It can be done easily as
for value in [var1,var2,var3]:
li.append("targetValue")
<%@ taglib prefix='c' uri='http://java.sun.com/jsp/jstl/core' %>
<c:set var="val" value="5"/>
<c:choose>
<c:when test="${val == '5'}">
Value is 5
</c:when>
<c:otherwise>
Value is not 5
</c:otherwise>
</c:choose>
@AnandaMahto has addressed why you're getting these results and provided the clearest way to get what you want. But another option would be to use identical
instead of ==
.
test$ID <- ifelse(is.na(test$time) | sapply(as.character(test$type), identical, "A"), NA, "1")
Or use isTRUE
:
test$ID <- ifelse(is.na(test$time) | Vectorize(isTRUE)(test$type == "A"), NA, "1")
You can do it this way:
=IF(E9>21,"Text 1",IF(AND(E9>=5,E9<=21),"Test 2","Text 3"))
Note I assume you meant >=
and <=
here since your description skipped the values 5
and 21
, but you can adjust these inequalities as needed.
Or you can do it this way:
=IF(E9>21,"Text 1",IF(E9<5,"Text 3","Text 2"))
Depending on how often you use this in your code you could consider the following:
macro
#define SIGN(x) ( (x) >= 0 )
Inline function
inline int sign(int x)
{
return x >= 0;
}
Then you would just go:
bigInt.sign = sign(number);
An accrual ledger should note zeroes, even if that is the hyphen displayed with an Accounting style number format. However, if you want to leave the line blank when there are no values to calculate use a formula like the following,
=IF(COUNT(F16:G16), SUM(G16, INDEX(H$1:H15, MATCH(1e99, H$1:H15)), -F16), "")
That formula is a little tricky because you seem to have provided your sample formula from somewhere down into the entries of the ledger's item rows without showing any layout or sample data. The formula I provided should be able to be put into H16 and then copied or filled to other locations in column H but I offer no guarantees without seeing the layout.
If you post some sample data or a publicly available link to a screenshot showing your data layout more specific assistance could be offered. http://imgur.com/ is a good place to host a screenshot and it is likely that someone with more reputation will insert the image into your question for you.
I'd say the switch is the way to go, it is both faster and better practise.
There are various links such as (http://www.blackwasp.co.uk/SpeedTestIfElseSwitch.aspx) that show benchmark tests comparing the two.
Most answers here will work fine if you have just two
conditions in your if-else. For more which is I guess what you want, you'll be using arrays.
Every names corresponding element in names
array you'll have an element in the hasNames
array with the exact same index. Then it's a matter of these four lines.
names = "true";
var names = ["true","false","1","2"];
var hasNames = ["Y","N","true","false"];
var intIndex = names.indexOf(name);
hasName = hasNames[intIndex ];
This method could also be implemented using Objects and properties as illustrated by Benjamin.
var test = $("#test").val();
if (test != 'A' && test != 'B'){
do stuff;
}
else {
do other stuff;
}
The reason it prints "three" is because you didnt define your array. The equivalent to what you're doing is:
arr = []
for i in array :
if i == "two" :
arr.push(i)
print(i)
You are asking for the last element it looked through, which is not what you should be doing. You need to be storing the array to a variable in order to get the element.
The english equivalent of what you are doing is:
You: "I need you to print all the elements in this array that equal two, but in an array. And each time you cycle through the list, define the current element as I."
Computer: "Here: ["two"]"
You: "Now tell me 'i'"
Computer: "'i' is equal to "three"
You: "Why?"
The reason 'i' is equal to "three" is because three was the last thing that was defined as I
the computer did:
i = "one"
i = "two"
i = "three"
print(["two"])
Because you asked it to.
If you want the index, go here If you want the values in an array, define the array, like this:
MyArray = [(i) for i in my_list if i=="two"]
Here I have a snippet for this question.
$(function(){_x000D_
$("#buttoncheck").click(function(){_x000D_
if($('[type="checkbox"]').is(":checked")){_x000D_
$('.checkboxStatus').html("Congratulations! "+$('[type="checkbox"]:checked').length+" checkbox checked");_x000D_
}else{_x000D_
$('.checkboxStatus').html("Sorry! Checkbox is not checked");_x000D_
}_x000D_
return false;_x000D_
})_x000D_
_x000D_
});
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<form>_x000D_
<p>_x000D_
<label>_x000D_
<input type="checkbox" name="CheckboxGroup1" value="checkbox" id="CheckboxGroup1_0">_x000D_
Checkbox</label>_x000D_
<br>_x000D_
<label>_x000D_
<input type="checkbox" name="CheckboxGroup1_" value="checkbox" id="CheckboxGroup1_1">_x000D_
Checkbox</label>_x000D_
<br>_x000D_
</p>_x000D_
<p>_x000D_
<input type="reset" value="Reset">_x000D_
<input type="submit" id="buttoncheck" value="Check">_x000D_
</p>_x000D_
<p class="checkboxStatus"></p>_x000D_
</form>
_x000D_
case_when
is now a pretty clean implementation of the SQL-style case when:
structure(list(a = c(1, 3, 4, 6, 3, 2, 5, 1), b = c(1, 3, 4,
2, 6, 7, 2, 6), c = c(6, 3, 6, 5, 3, 6, 5, 3), d = c(6, 2, 4,
5, 3, 7, 2, 6), e = c(1, 2, 4, 5, 6, 7, 6, 3), f = c(2, 3, 4,
2, 2, 7, 5, 2)), .Names = c("a", "b", "c", "d", "e", "f"), row.names = c(NA,
8L), class = "data.frame") -> df
df %>%
mutate( g = case_when(
a == 2 | a == 5 | a == 7 | (a == 1 & b == 4 ) ~ 2,
a == 0 | a == 1 | a == 4 | a == 3 | c == 4 ~ 3
))
Using dplyr 0.7.4
The manual: http://dplyr.tidyverse.org/reference/case_when.html
If you don't want to pass the parameter when you don't want to search, then you should make the parameter optional instead of assuming that ''
and NULL
are the same thing.
ALTER PROCEDURE [dbo].[psProducts]
(
@SearchType varchar(50) = NULL
)
AS
BEGIN
SET NOCOUNT ON;
SELECT P.[ProductId]
,P.[ProductName]
,P.[ProductPrice]
,P.[Type]
FROM dbo.[Product] AS P
WHERE p.[Type] = COALESCE(NULLIF(@SearchType, ''), p.[Type]);
END
GO
Now if you pass NULL
, an empty string (''
), or leave out the parameter, the where clause will essentially be ignored.
mysql_query("SHOW TABLES FROM yourDB");
//> loop thru results and see if it exists
//> in this way with only one query one can check easly more table
or mysql_query("SHOW TABLES LIKE 'tblname'");
Don't use mysql_list_tables();
because it's deprecated
You put the if
at the end:
[y for y in a if y not in b]
List comprehensions are written in the same order as their nested full-specified counterparts, essentially the above statement translates to:
outputlist = []
for y in a:
if y not in b:
outputlist.append(y)
Your version tried to do this instead:
outputlist = []
if y not in b:
for y in a:
outputlist.append(y)
but a list comprehension must start with at least one outer loop.
I read it something like:
If still on the conditions to run the loop, do stuff, else do something else.
Here is a beautiful and minimalist way to go
(num > 1 && num < 5) ? first_case_method()
: System.out.println("testing case 1 to 5")
: (num > 5 && num < 7) ? System.out.println("testing case 5 to 7")
: (num > 7 && num < 8) ? System.out.println("testing case 7 to 8")
: (num > 8 && num < 9) ? System.out.println("testing case 8 to 9")
: ...
: System.out.println("default");
Try this instead
=IF(ISBLANK(C1),TRUE,(TRIM(C1)=""))
This will return true for cells that are either truly blank, or contain nothing but white space.
See this post for a few other options.
edit
To reflect the comments and what you ended up doing: Instead of evaluating to "" enter another value such as 'deleteme' and then search for 'deleteme' instead of blanks.
=IF(ISBLANK(C1),TRUE,(TRIM(C1)="deleteme"))
When you say you tried to use OR, how exactly did you try and use it? In your case, what you will need to do would be something like so:
String newStr4 = strr.split("2012")[0];
if(newStr4.startsWith("Mon") || newStr4.startsWith("Tues")...)
str4.add(newStr4);
CHAR
is a fixed-length data type that uses as much space as possible. So a:= a||'one ';
will require more space than is available. Your problem can be reduced to the following example:
declare
v_foo char(50);
begin
v_foo := 'A';
dbms_output.put_line('length of v_foo(A) = ' || length(v_foo));
-- next line will raise:
-- ORA-06502: PL/SQL: numeric or value error: character string buffer too small
v_foo := v_foo || 'B';
dbms_output.put_line('length of v_foo(AB) = ' || length(v_foo));
end;
/
Never use char
. For rationale check the following question (read also the links):
To use shorthand to get the direction:
int direction = column == 0
? 0
: (column == _gridSize - 1 ? 1 : rand.Next(2));
To simplify the code entirely:
if (column == gridSize - 1 || rand.Next(2) == 1)
{
}
else
{
}
jQuery's attr
method returns the value of the attribute:
The
.attr()
method gets the attribute value for only the first element in the matched set. To get the value for each element individually, use a looping construct such as jQuery's.each()
or.map()
method.
All you need is:
$('html').attr('lang') == 'fr-FR'
However, you might want to do a case-insensitive match:
$('html').attr('lang').toLowerCase() === 'fr-fr'
jQuery's val
method returns the value of a form element.
The
.val()
method is primarily used to get the values of form elements such asinput
,select
andtextarea
. In the case of<select multiple="multiple">
elements, the.val()
method returns an array containing each selected option; if no option is selected, it returnsnull
.
For lamdas where your long value is somewhere in an object I recommend using:
.sorted((o1, o2) -> Long.compare(o1.getLong(), o2.getLong()))
or even better:
.sorted(Comparator.comparingLong(MyObject::getLong))
Unlike IDs, tags are not used to identify views. Tags are essentially an extra piece of information that can be associated with a view. They are most often used as a convenience to store data related to views in the views themselves rather than by putting them in a separate structure.
Reference: http://developer.android.com/reference/android/view/View.html
(Solution) Same problem: Windows 10 vs. Oracle 11g (11.2.0.4)
The problem arises again with the final release of Windows 10 (and Server 2016 Preview 3 too) using e. g. Oracle 11g (11.2.0.4, 64 bit) after installation tasks worked fine with several preview builds of Windows 10. All things said above are o. k. resp. do not work.
The ultimate cause is an incompatibility of OracleRemExecService (vs. RemoteExecService.exe): as known, at the beginning of installation process it is created via %TEMP%\oraremservice. If you watch it e. g. with Sysinternals' ProcessMonitor using an appropriate filter, you can see several crashes (the most of them with "buffer Overflow") and restarts, and there are also corresponding with messages in Windows' "System" event log.
If you start (after deleting the HKLM\Software\oracle in the registry) the installation several times (more than three times - see below) it suddenly works. The reason for this behaviour is Windows' "Fault Tolerant Heap" mechanism (see https://msdn.microsoft.com/de-de/library/windows/desktop/dd744764(v=vs.85).aspx) that creates after three attempts within 60 minutes (see http://blogs.technet.com/b/askperf/archive/2009/10/02/windows-7-windows-server-2008-r2-fault-tolerant-heap-and-memory-management.aspx) a FTH entry in HKLM\Software\Microsoft\FTH\State and a corresponding shim in HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Layers. Although the content of the FTH entry is related to the current process of RemoteExecService.exe you can import the registry keys to a system before you start the DB installation. If you set Windows' %TEMP% environment variable and also %TMP% (due to the fact that Oracle uses both directories while creating the things around OracleRemExecService) to a predefined value (e. g. C:\TEMP) you are able to use this for all your installation tasks as follows (unfortunately, it works only with Windows 10, not Server 2016 - updated 2015-09-24, see below):
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Layers]
"C:\\Temp\\oraremservice\\RemoteExecService.exe"="FaultTolerantHeap"
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\FTH\State]
"C:\\Temp\\oraremservice\\RemoteExecService.exe"=hex:10,00,00,00,10,00,00,00,\
0c,b4,ff,0c,52,00,65,00,6d,00,6f,00,74,00,65,00,45,00,78,00,65,00,63,00,53,\
00,65,00,72,00,76,00,69,00,63,00,65,00,2e,00,65,00,78,00,65,00,00,00,00,00,\
00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,\
00,00,00,00,00,00,00,00,00
Update 2015-09-24: With Server 2016 (Preview 3), it's a little bit more tricky: first you also have to set the environment variable %TEMP% e. g. to C:\Temp and to import the registry keys above (after this, it's no bad idea to restart the system). Than you start the Oracle installation using an additional parameter:
setup.exe -debug
If you watch what happens in %TEMP% you can see that the folder %TEMP%\oraremservice\ is created twice: after first creation, the installer seems to notice that the service does not work, deletes the folder and creates it again. After this, the Installation process works as expected.
Update 2015-11-27: - Using Windows Server 2016 Preview 4, the workaround via "setup.exe -debug" is not necessary anymore; you can proceed as described for Windows 10. - Of course, you do not need the procedure with new C:\TEMP vs. %TEMP% and %TMP% if you have a defined user (e. g. Administrator). Then you can use modified registry items like this:
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Layers]
"C:\\Users\\Administrator\\AppData\\Local\\Temp\\oraremservice\\RemoteExecService.exe"="FaultTolerantHeap"
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\FTH\State]
"C:\\Users\\Administrator\\AppData\\Local\\Temp\\oraremservice\\RemoteExecService.exe"=hex:10,00,00,00,10,00,00,00,\
0c,b4,ff,0c,52,00,65,00,6d,00,6f,00,74,00,65,00,45,00,78,00,65,00,63,00,53,\
00,65,00,72,00,76,00,69,00,63,00,65,00,2e,00,65,00,78,00,65,00,00,00,00,00,\
00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,\
00,00,00,00,00,00,00,00,00
Update 2017-01-31: Tested all builds of Windows 10 (Insider Preview) until now, so we have seen a new problem coming up with build 15002: the Oracle setup isn't able to determine the PATH variable anymore (the variable itself, not a wrong content or so on!). So all attempts to install the Oracle DB fail. Comparing the registry of the Windows versions and "playing around" with this variable and their contents did not help. The only work-around is to edit the related XML file \64bit|32bit\stage\cvu\cvu_prereq.xml and delete in the section all tags ... (or this tag only in the last item "Windows Server 2012"). And btw: despite of we are primary using Oracle 11g this new installation problem also occurs using the up to date setup of Oracle 12c...
Go to Run and type "inetmgr", i.e IIS is opened and in the right corner Action window, select option change ".NET Framework version". Change it.
After that, reinstall your Visual studio 2010. It works on my computer, and that's why sharing.
You'll have to set it to zero. Zero means the script can run forever. Add the following at the start of your script:
ini_set('max_execution_time', 0);
Refer to the PHP documentation of max_execution_time
Note that:
set_time_limit(0);
will have the same effect.
Python 3.X
Handles UTF8 BOM + HEADER
It was quite frustrating that the csv
module could not easily get the header, there is also a bug with the UTF-8 BOM (first char in file).
This works for me using only the csv
module:
import csv
def read_csv(self, csv_path, delimiter):
with open(csv_path, newline='', encoding='utf-8') as f:
# https://bugs.python.org/issue7185
# Remove UTF8 BOM.
txt = f.read()[1:]
# Remove header line.
header = txt.splitlines()[:1]
lines = txt.splitlines()[1:]
# Convert to list.
csv_rows = list(csv.reader(lines, delimiter=delimiter))
for row in csv_rows:
value = row[INDEX_HERE]
It shouldn't be HTTP headers if the file has been downloaded successfully and it's the same file that you can open from OI.
A shot in the dark, but could it be that you are not allowing installation from unknown sources, and that OI is somehow bypassing that?
Settings > Applications > Unknown sources...
Edit
Answer extracted from comments which worked. Ensure the Content-Type is set to application/vnd.android.package-archive
Try to use transparent attribute value for making transparent background color.
backgroundColor: 'transparent'
You are providing a string representation of a dict to the DataFrame constructor, and not a dict itself. So this is the reason you get that error.
So if you want to use your code, you could do:
df = DataFrame(eval(data))
But better would be to not create the string in the first place, but directly putting it in a dict. Something roughly like:
data = []
for row in result_set:
data.append({'value': row["tag_expression"], 'key': row["tag_name"]})
But probably even this is not needed, as depending on what is exactly in your result_set
you could probably:
DataFrame(result_set)
read_sql_query
function to do this for you (see docs on this)We encountered this issue on a Tomcat running from a jre directory that was (almost fully) removed after an automatic jre update, so that the running jre could no longer find jre.../lib/security/cacerts because it no longer existed.
Restarting Tomcat (after changing the configuration to run from the different jre location) fixed the problem.
StringUtils.abbreviate
from Apache Commons Lang library could be your friend:
StringUtils.abbreviate("abcdefg", 6) = "abc..."
StringUtils.abbreviate("abcdefg", 7) = "abcdefg"
StringUtils.abbreviate("abcdefg", 8) = "abcdefg"
StringUtils.abbreviate("abcdefg", 4) = "a..."
Commons Lang3 even allow to set a custom String as replacement marker. With this you can for example set a single character ellipsis.
StringUtils.abbreviate("abcdefg", "\u2026", 6) = "abcde…"
You need to use get_serving_url
from the Images API. As that page explains, you need to call create_gs_key()
first to get the key to pass to the Images API.
import codecs
decode_hex = codecs.getdecoder("hex_codec")
# for an array
msgs = [decode_hex(msg)[0] for msg in msgs]
# for a string
string = decode_hex(string)[0]
Return min and max value in tuple:
def side_values(num_list):
results_list = sorted(num_list)
return results_list[0], results_list[-1]
somelist = side_values([1,12,2,53,23,6,17])
print(somelist)
I found another way to run into this error. You can get this if you have been re-organizing your directory structure, and one of your poms is pointing to the old parent which no-longer configures javac (because that configuration was moved to a middle level). If this happens the top level defaults to 1.5 and the misbehaving lower level pom inherits it.
So another thing to check when you see this error is that your pom structure is matching your directory structure properly.
you can use this code
$a = '';
if(!empty($a))
echo 'text';
Posting because when I started LINQ + EntityFramework, I stared at these examples for a day.
If you are using EntityFramework, and you have a navigation property named Meta
on your Post
model object set up, this is dirt easy. If you're using entity and don't have that navigation property, what are you waiting for?
database
.Posts
.Where(post => post.ID == id)
.Select(post => new { post, post.Meta });
If you're doing code first, you'd set up the property thusly:
class Post {
[Key]
public int ID {get; set}
public int MetaID { get; set; }
public virtual Meta Meta {get; set;}
}
A value can be reassigned in case of var
//Variables
var age = 42
println(age) //Will print 42
age = 90
println(age) //Will Print 90
** the newAge constant cannot be reassigned to a new value. Trying to do so will give a compile time error**
//Constants
let newAge = 92 //Declaring a constant using let
println(newAge) //Will print 92.
This piece of code helps to convert back and forth
System.out.println("Date: "+ String.valueOf(new Date()));
SimpleDateFormat dt = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String stringdate = dt.format(new Date());
System.out.println("String.valueOf(date): "+stringdate);
try {
Date date = dt.parse(stringdate);
System.out.println("parse date: "+ String.valueOf(date));
} catch (ParseException e) {
e.printStackTrace();
}
Another option is Array.isArray()
if(! Array.isArray(classNames) ){
classNames = [classNames]
}
Use the Config class:
Config::set('site_settings', $site_settings);
Config::get('site_settings');
http://laravel.com/docs/4.2/configuration
Configuration values that are set at run-time are only set for the current request, and will not be carried over to subsequent requests.
You can set the z-index in css
<div style="z-index: -1"></div>
The Database that we are using should be mentioned under search_path in Postgres SQL Configuration file. This can be done by editing Postgressql configuration file by setting search_path along with database name for example: TESTDB.
It worked for me after making the above change.
First, use git log
to see the log, pick the commit you want, note down the sha1 hash that is used to identify the commit. Next, run git checkout hash
. After you are done, git checkout original_branch
. This has the advantage of not moving the HEAD, it simply switches the working copy to a specific commit.
Html.Label
- Just creates a label tag with whatever the string passed into the constructor is
Html.LabelFor
- Creates a label for that specific property. This is strongly typed. By default, this will just do the name of the property (in the below example, it'll output MyProperty if that Display attribute wasn't there). Another benefit of this is you can set the display property in your model and that's what will be put here:
public class MyModel
{
[Display(Name="My property title")
public class MyProperty{get;set;}
}
In your view:
Html.LabelFor(x => x.MyProperty) //Outputs My property title
In the above, LabelFor will display <label for="MyProperty">My property title</label>
. This works nicely so you can define in one place what the label for that property will be and have it show everywhere.
You could use a Mixin.
/// <summary>
/// Adds "mixins" to the Boolean class.
/// </summary>
public static class BooleanMixins
{
/// <summary>
/// Converts the value of this instance to its equivalent string representation (either "Yes" or "No").
/// </summary>
/// <param name="boolean"></param>
/// <returns>string</returns>
public static string ToYesNoString(this Boolean boolean)
{
return boolean ? "Yes" : "No";
}
}
You can use a mini library like objx - http://objx.googlecode.com/
You can write code like this:
var data = [ {"id":"10", "class": "child-of-9"},
{"id":"11", "class": "child-of-10"}];
// alert all IDs
objx(data).each(function(item) { alert(item.id) });
// get all IDs into a new array
var ids = objx(data).collect("id").obj();
// group by class
var grouped = objx(data).group(function(item){ return item.class; }).obj()
There are more 'plugins' available to let you handle data like this, see http://code.google.com/p/objx-plugins/wiki/PluginLibrary
Use xsd:include to bring in an XSD from the same or no namespace.
Use xsd:import to bring in an XSD from a different namespace.
Have you installed it using sudo? Was the error in my case.
Here is the simple version
#one
a = [[0]*10]*10
#two
row, col = 10, 10
a = [[0]*row]*col
def Isprime(z):
'''returns True if the number is prime OTW returns false'''
if z<1:
return False
elif z==1:
return False
elif z==2:
return True
else:
for i in range(2,z):
if z%i==0:
return False
else:
return True
This is the way I did it. Of course, there are so many ways you can do it.
You can use all
> all(1:6 %in% 0:36)
[1] TRUE
> all(1:60 %in% 0:36)
[1] FALSE
On a similar note, if you want to check whether any of the elements is TRUE you can use any
> any(1:6 %in% 0:36)
[1] TRUE
> any(1:60 %in% 0:36)
[1] TRUE
> any(50:60 %in% 0:36)
[1] FALSE
This query seems to do the trick:
SELECT
sys.objects.name AS table_name,
sys.columns.name AS column_name
FROM sys.columns JOIN sys.objects
ON sys.columns.object_id=sys.objects.object_id
WHERE
sys.columns.is_identity=1
AND
sys.objects.type in (N'U')
It's not clear whether you're asking this because you are new to programming, but if that's the case then you should probably read this article on loops and indeed read some basic materials on programming.
If you already know about control structures and you want the R-specific implementation details then there are dozens of tutorials around, such as this one. The other answer uses replicate
and colMeans
, which is idiomatic when writing in R and probably blazing fast as well, which is important if you want 10,000 iterations.
However, one more general and (for beginners) straightforward way to approach problems of this sort would be to use a for
loop.
> for (ii in 1:5) { + print(ii) + } [1] 1 [1] 2 [1] 3 [1] 4 [1] 5 >
So in your case, if you just wanted to print the mean of your Tandem
object 5 times:
for (ii in 1:5) { Tandem <- sample(OUT, size = 815, replace = TRUE, prob = NULL) TandemMean <- mean(Tandem) print(TandemMean) }
As mentioned above, replicate
is a more natural way to deal with this specific problem using R. Either way, if you want to store the results - which is surely the case - you'll need to start thinking about data structures like vectors and lists. Once you store something you'll need to be able to access it to use it in future, so a little knowledge is vital.
set.seed(1234) OUT <- runif(100000, 1, 2) tandem <- list() for (ii in 1:10000) { tandem[[ii]] <- mean(sample(OUT, size = 815, replace = TRUE, prob = NULL)) } tandem[1] tandem[100] tandem[20:25]
...creates this output:
> set.seed(1234) > OUT <- runif(100000, 1, 2) > tandem <- list() > for (ii in 1:10000) { + tandem[[ii]] <- mean(sample(OUT, size = 815, replace = TRUE, prob = NULL)) + } > > tandem[1] [[1]] [1] 1.511923 > tandem[100] [[1]] [1] 1.496777 > tandem[20:25] [[1]] [1] 1.500669 [[2]] [1] 1.487552 [[3]] [1] 1.503409 [[4]] [1] 1.501362 [[5]] [1] 1.499728 [[6]] [1] 1.492798 >
There are two ways to do this.
1. providing the SHA of the commit you want to see to git log
git log -p a2c25061
Where -p
is short for patch
2. use git show
git show a2c25061
The output for both commands will be:
I have solved this Issue by this blog:http://android-developers.blogspot.com/2014/10/appcompat-v21-material-design-for-pre.html
The problem is you use the wrong theme,you can choose theme that like Theme.AppCompat.NoActionBar, in my project,it works.
I hope to help you?
class Item{
bool IsNullOrZero{ get{return ((this.Rate ?? 0) == 0);}}
}
Use this
$('body').on('change', '#id', function() {
// Action goes here.
});
To add all file at a time, use git add -A
To check git whole status, use git log
I know this is kind of an old topic, but I would use the Powershell variable
$env:UserProfile
To use it to get to the desktop, it would be:
cd $env:UserProfile\desktop
This works both locally and remotely on windows 7. Hope this is useful as I ran across a situation where a client machine didn't have a value in $home.
I didn't see pyformat in the list so I thought I'd throw it in:
console.log(pyformat( 'The {} {} jumped over the {}'
, ['brown' ,'fox' ,'foobar']
))
console.log(pyformat('The {0} {1} jumped over the {1}'
, ['brown' ,'fox' ,'foobar']
))
console.log(pyformat('The {color} {animal} jumped over the {thing}'
, [] ,{color: 'brown' ,animal: 'fox' ,thing: 'foobaz'}
))
To make this work on Ubuntu Linux:
I installed the Ubuntu package ruby-json:
apt-get install ruby-json
I wrote the script in ${HOME}/rubybin/jsonDEMO
$HOME/.bashrc
included:
${HOME}/rubybin:${PATH}
(On this occasion I also typed the above on the bash command line.)
Then it worked when I entered on the command line:
jsonDemo
I've updated the class using refs as all the solutions I see on here have things that are no longer supported or will soon be depreciated like ReactDOM.findDOMNode
. Can be parent to a child component or a group of children :)
import React, { Component } from 'react';
class Draggable extends Component {
constructor(props) {
super(props);
this.myRef = React.createRef();
this.state = {
counter: this.props.counter,
pos: this.props.initialPos,
dragging: false,
rel: null // position relative to the cursor
};
}
/* we could get away with not having this (and just having the listeners on
our div), but then the experience would be possibly be janky. If there's
anything w/ a higher z-index that gets in the way, then you're toast,
etc.*/
componentDidUpdate(props, state) {
if (this.state.dragging && !state.dragging) {
document.addEventListener('mousemove', this.onMouseMove);
document.addEventListener('mouseup', this.onMouseUp);
} else if (!this.state.dragging && state.dragging) {
document.removeEventListener('mousemove', this.onMouseMove);
document.removeEventListener('mouseup', this.onMouseUp);
}
}
// calculate relative position to the mouse and set dragging=true
onMouseDown = (e) => {
if (e.button !== 0) return;
let pos = { left: this.myRef.current.offsetLeft, top: this.myRef.current.offsetTop }
this.setState({
dragging: true,
rel: {
x: e.pageX - pos.left,
y: e.pageY - pos.top
}
});
e.stopPropagation();
e.preventDefault();
}
onMouseUp = (e) => {
this.setState({ dragging: false });
e.stopPropagation();
e.preventDefault();
}
onMouseMove = (e) => {
if (!this.state.dragging) return;
this.setState({
pos: {
x: e.pageX - this.state.rel.x,
y: e.pageY - this.state.rel.y
}
});
e.stopPropagation();
e.preventDefault();
}
render() {
return (
<span ref={this.myRef} onMouseDown={this.onMouseDown} style={{ position: 'absolute', left: this.state.pos.x + 'px', top: this.state.pos.y + 'px' }}>
{this.props.children}
</span>
)
}
}
export default Draggable;
This ought to do it:
SELECT *
FROM YourTable
WHERE ARIDNR IN (
SELECT ARIDNR
FROM YourTable
GROUP BY ARIDNR
HAVING COUNT(*) > 1
)
The idea is to use the inner query to identify the records which have a ARIDNR
value that occurs 1+ times in the data, then get all columns from the same table based on that set of values.
Different's Between
=
,= =
,= = =
=
operator Used to just assign the value
.= =
operator Used to just compares the values
not datatype
= = =
operator Used to Compare the values
as well as datatype
.What I've done on my side:
Went to the /usr/local/lib/node_modules
, and deleted the yarn
folder inside it.
If you are a Windows user, this is a common error when you use XAMPP
since LDAP
is not enabled by default.
You can follow this steps to make sure LDAP
works in your XAMPP
:
[Your Drive]:\xampp\php\php.ini
: In this file uncomment the following line:
extension=php_ldap.dll
Move the file: libsasl.dll
, from [Your Drive]:\xampp\php
to [Your Drive]:\xampp\apache\bin
(Note: moving the file is needed only for XAMPP prior to version: 5.6.28
)
Restart Apache.
You can now use functions of the LDAP Module!
If you use Linux:
For php5:
sudo apt-get install php5-ldap
For php7:
sudo apt-get install php7.0-ldap
If you are using the latest version of PHP you can do
sudo apt-get install php-ldap
running the above command should do the trick.
if for any reason it doesn't work check your php.ini configuration to enable ldap, remove the semicolon before extension=ldap
to uncomment, save and restart Apache
As said by JW, you can't find the current focused element, at least in a browser-independent way. But if your app is IE only (some are...), you can find it the following way :
document.activeElement
EDIT: It looks like IE did not have everything wrong after all, this is part of HTML5 draft and seems to be supported by the latest version of Chrome, Safari and Firefox at least.
As documented under CREATE TABLE
Syntax:
Note
The olderTYPE
option was synonymous withENGINE
.TYPE
was deprecated in MySQL 4.0 and removed in MySQL 5.5. When upgrading to MySQL 5.5 or later, you must convert existing applications that rely onTYPE
to useENGINE
instead.
Therefore, you want:
CREATE TABLE dave_bannedwords(
id INT(11) NOT NULL AUTO_INCREMENT,
word VARCHAR(60) NOT NULL DEFAULT '',
PRIMARY KEY (id),
KEY id(id) -- this is superfluous in the presence of your PK, ergo unnecessary
) ENGINE = MyISAM ;
The show()
method only affects the display
CSS setting. If you want to set the visibility you need to do it directly. Also, the .load_button
element is a button and does not raise a submit
event. You would need to change your selector to the form
for that to work:
$('#login_form').submit(function() {
$('#gif').css('visibility', 'visible');
});
Also note that return true;
is redundant in your logic, so it can be removed.
You should pass the reference to request like below
var options = { ... }_x000D_
var req = http.request(options, function(res) {_x000D_
// Usual stuff: on(data), on(end), chunks, etc..._x000D_
});_x000D_
_x000D_
req.setTimeout(60000, function(){_x000D_
this.abort();_x000D_
}).bind(req);_x000D_
req.write('something');_x000D_
req.end();
_x000D_
Request error event will get triggered
req.on("error", function(e){_x000D_
console.log("Request Error : "+JSON.stringify(e));_x000D_
});
_x000D_
error: failed to push some refs to '[email protected]:{username}/{projectname}.git'
Unless you're generalizing the error message, it looks like you literally put [email protected]:{username}/{projectname}.git
as your remote Git repo. You should fill in {username}
with your GitHub username, and {projectname}
with your project's name.
You can use strtotime() for time calculation. Here is an example:
$checkTime = strtotime('09:00:59');
echo 'Check Time : '.date('H:i:s', $checkTime);
echo '<hr>';
$loginTime = strtotime('09:01:00');
$diff = $checkTime - $loginTime;
echo 'Login Time : '.date('H:i:s', $loginTime).'<br>';
echo ($diff < 0)? 'Late!' : 'Right time!'; echo '<br>';
echo 'Time diff in sec: '.abs($diff);
echo '<hr>';
$loginTime = strtotime('09:00:59');
$diff = $checkTime - $loginTime;
echo 'Login Time : '.date('H:i:s', $loginTime).'<br>';
echo ($diff < 0)? 'Late!' : 'Right time!';
echo '<hr>';
$loginTime = strtotime('09:00:00');
$diff = $checkTime - $loginTime;
echo 'Login Time : '.date('H:i:s', $loginTime).'<br>';
echo ($diff < 0)? 'Late!' : 'Right time!';
Check the already-asked question - how to get time difference in minutes:
Subtract the past-most one from the future-most one and divide by 60.
Times are done in unix format so they're just a big number showing the number of seconds from January 1 1970 00:00:00 GMT
The answer provided by @Matthias Herlitzius is mostly correct. Just for further clarity.
The servlet-api jar is best left up to the server to manage see here for detail
With that said, the dependency to add may vary according to your server/container. For example in Wildfly the dependency would be
<dependency>
<groupId>org.jboss.spec.javax.servlet</groupId>
<artifactId>jboss-servlet-api_3.1_spec</artifactId>
<scope>provided</scope>
</dependency>
So becareful to check how your container has provided the servlet implementation.
Swift 4, iOS 12 and Xcode 10 Update
100% working just cut & paste
Just put this function in relevant class and call this function self.deleteData()
in viewDidLoad()
or anywhere or under a function or a button so that by clicking a button all the data from entity should be deleted and replace the "myEntity" as your entity that you have defined in your core data
func deleteData() {
let appDel:AppDelegate = (UIApplication.shared.delegate as! AppDelegate)
let context:NSManagedObjectContext = appDel.persistentContainer.viewContext
let fetchRequest = NSFetchRequest<NSFetchRequestResult>(entityName: "myEntity")
fetchRequest.returnsObjectsAsFaults = false
do {
let results = try context.fetch(fetchRequest)
for managedObject in results {
if let managedObjectData: NSManagedObject = managedObject as? NSManagedObject {
context.delete(managedObjectData)
}
}
} catch let error as NSError {
print("Deleted all my data in myEntity error : \(error) \(error.userInfo)")
}
}
Swift 4.2
let data = yourString.data(using: .utf8, allowLossyConversion: true)
I dont know why you havent marked on of these gr8 answers... here is another option which would enable you and anyone else visiting to control transition speed and pause time
JAVASCRIPT
$(function () {
/* SET PARAMETERS */
var change_img_time = 5000;
var transition_speed = 100;
var simple_slideshow = $("#exampleSlider"),
listItems = simple_slideshow.children('li'),
listLen = listItems.length,
i = 0,
changeList = function () {
listItems.eq(i).fadeOut(transition_speed, function () {
i += 1;
if (i === listLen) {
i = 0;
}
listItems.eq(i).fadeIn(transition_speed);
});
};
listItems.not(':first').hide();
setInterval(changeList, change_img_time);
});
.
HTML
<ul id="exampleSlider">
<li><img src="http://placehold.it/500x250" alt="" /></li>
<li><img src="http://placehold.it/500x250" alt="" /></li>
<li><img src="http://placehold.it/500x250" alt="" /></li>
<li><img src="http://placehold.it/500x250" alt="" /></li>
</ul>
.
If your keeping this simple its easy to keep it resposive
best to visit the: DEMO
.
If you want something with special transition FX (Still responsive) - check this out
DEMO WITH SPECIAL FX
In your app.component.html use:
[ngStyle]="{'background-color':backcolor}"
In app.ts declare variable of string type backcolor:string
.
Set the variable this.backcolor="red"
.
This is what I've been using. It's simple and it works well.
#pragma mark - Scrolling
-(void)scrollElement:(UIView *)view toPoint:(float)y
{
CGRect theFrame = view.frame;
float orig_y = theFrame.origin.y;
float diff = y - orig_y;
if (diff < 0)
[self scrollToY:diff];
else
[self scrollToY:0];
}
-(void)scrollToY:(float)y
{
[UIView animateWithDuration:0.3f animations:^{
[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
self.view.transform = CGAffineTransformMakeTranslation(0, y);
}];
}
Use the UITextField
delegate call textFieldDidBeginEditing:
to shift your view upwards, and also add a notification observer to return the view to normal when the keyboard hides:
-(void)textFieldDidBeginEditing:(UITextField *)textField
{
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillHide:) name:UIKeyboardWillHideNotification object:nil];
if (self.view.frame.origin.y == 0)
[self scrollToY:-90.0]; // y can be changed to your liking
}
-(void)keyboardWillHide:(NSNotification*)note
{
[self scrollToY:0];
[[NSNotificationCenter defaultCenter] removeObserver:self name:UIKeyboardWillHideNotification object:nil];
}
You might want to look at setting up a jail.
I found the issue that I never had before.
I just had to delete /etc/nginx/sites-available/default
. Then it worked.
This deletion will delete the symlink only, As backup you can find default file in
/etc/nginx/sites-enabled/default
My conf was in /etc/nginx/default
.
use this connection string :
Server=HARIHARAN-PC\SQLEXPRESS;Intial Catalog=persons;Integrated Security=True;
rename person with your database name
This is a typical error caused by Antivirus. There is a workaround for cases like mine, where I can't disable A/V (Company Policy).
You have to change the polyfills.js
inside Npm
package:
[NODE_HOME]/node_modules/npm/node_modules/graceful_fs/polyfills.js
Look for this statement:
if (process.platform === "win32") {
Inside of this statement, there is a timeout making a retry in case of error. The problem is that in some cases, after the timeout, the file is still locked by the A/V. The solution is rip out the timeout and let this statement in loop. The change with the previous code commented:
if (platform === "win32") {
fs.rename = (function (fs$rename) { return function (from, to, cb) {
var start = Date.now()
var backoff = 0;
fs$rename(from, to, function CB (er) {
if (er
&& (er.code === "EACCES" || er.code === "EPERM")
/*&& Date.now() - start < 60000*/) {
console.log("Retrying rename file: " + from + " <> " + to)
fs$rename(from, to, CB);
/*setTimeout(function() {
fs.stat(to, function (stater, st) {
if (stater && stater.code === "ENOENT")
fs$rename(from, to, CB);
else
cb(er)
})
}, backoff)*/
if (backoff < 100)
backoff += 10;
return;
}
if (cb) cb(er)
})
}})(fs.rename)
}
I have found the EXECUTE command as suggested here T-SQL - function with default parameters to work well. With this approach there is no 'DEFAULT' needed when calling the function, you just omit the parameter as you would with a stored procedure.
MozWebSocket
MozWebSocket
Any browser with Flash can support WebSocket using the web-socket-js shim/polyfill.
See caniuse for the current status of WebSockets support in desktop and mobile browsers.
See the test reports from the WS testsuite included in Autobahn WebSockets for feature/protocol conformance tests.
It depends on which language you use.
In Java/Java EE:
V 7.5 supports RFC6455
- Jetty 9.1 supports javax.websocket / JSR 356)V 3.1.2 supports RFC6455
V 4.0.25 supports RFC6455
V 7.0.28 supports RFC6455
Some other Java implementations:
V 5.6 supports RFC6455
V 2.10 supports RFC6455
In C#:
In PHP:
In Python:
In C:
In Node.js:
Vert.x (also known as Node.x) : A node like polyglot implementation running on a Java 7 JVM and based on Netty with :
Pusher.com is a Websocket cloud service accessible through a REST API.
DotCloud cloud platform supports Websockets, and Java (Jetty Servlet Container), NodeJS, Python, Ruby, PHP and Perl programming languages.
Openshift cloud platform supports websockets, and Java (Jboss, Spring, Tomcat & Vertx), PHP (ZendServer & CodeIgniter), Ruby (ROR), Node.js, Python (Django & Flask) plateforms.
For other language implementations, see the Wikipedia article for more information.
The RFC for Websockets : RFC6455
For TFS 2013:
Start in VisualStudio-Team Explorer, in the PendingChanges Dialog undo the Changes whith the state [add], which should be ignored.
Visual Studio will detect the Add(s) again. Click On "Detected: x add(s)"-in Excluded Changes
In the opened "Promote Cadidate Changes"-Dialog You can easy exclude Files and Folders with the Contextmenu. Options are:
Don't forget to Check In the changed .tfignore-File.
For VS 2015/2017:
The same procedure: In the "Excluded Changes Tab" in TeamExplorer\Pending Changes click on Detected: xxx add(s)
The "Promote Candidate Changes" Dialog opens, and on the entries you can Right-Click for the Contextmenu. Typo is fixed now :-)
Browse to “C:\Windows\System32\inetsrv\config” (you will need administrator rights here) Open applicationHost.config
Note: In IISExpress and Visual Studio 2015 the applicationHost.config is stored in $(solutionDir).vs\config\applicationhost.config
Find the section that showed up in the “config source” part of the error message page. For me this has typically been “modules” or “handlers”
Change the overrideModeDefault
attribute to be Allow
So the whole line now looks like:
<section name="modules" allowDefinition="MachineToApplication" overrideModeDefault="Allow" />
After saving the file, the page loaded up fine in my browser.
Once you click the item add some data attribute like data-selected-item='true' and get it again.
Try adding data-selected-item='true' for li element that you clicked, then
$('ul.dropdown-menu li[data-selected-item] a').text();
Before adding this attribute you simply remove existing data-selected-item in the list. Hope this would help you
For information about data attribute usage in jQuery, refer jQuery data
You can't manipulate :after
, because it's not technically part of the DOM and therefore is inaccessible by any JavaScript. But you can add a new class with a new :after
specified.
CSS:
.pageMenu .active.changed:after {
/* this selector is more specific, so it takes precedence over the other :after */
border-top-width: 22px;
border-left-width: 22px;
border-right-width: 22px;
}
JS:
$('.pageMenu .active').toggleClass('changed');
UPDATE: while it's impossible to directly modify the :after
content, there are ways to read and/or override it using JavaScript. See "Manipulating CSS pseudo-elements using jQuery (e.g. :before and :after)" for a comprehensive list of techniques.
Try this:
def word(string, num)
string = 'Smith'
string[0..(num-1)]
end
Windows-vm "C:\Program Files\Java\jdk1.6.0_07\jre\bin\javaw.exe"
puts true ? "true" : "false"
=> "true"
puts false ? "true" : "false"
=> "false"
If you want a super class to call a function from a subclass, the cleanest way is to define an abstract pattern, in this manner you explicitly know the method exists somewhere and must be overridden by a subclass.
This is as an example, normally you do not call a sub method within the constructor as the sub instance is not initialized yet… (reason why you have an "undefined" in your question's example)
abstract class A {
// The abstract method the subclass will have to call
protected abstract doStuff():void;
constructor(){
alert("Super class A constructed, calling now 'doStuff'")
this.doStuff();
}
}
class B extends A{
// Define here the abstract method
protected doStuff()
{
alert("Submethod called");
}
}
var b = new B();
Test it Here
And if like @Max you really want to avoid implementing the abstract method everywhere, just get rid of it. I don't recommend this approach because you might forget you are overriding the method.
abstract class A {
constructor() {
alert("Super class A constructed, calling now 'doStuff'")
this.doStuff();
}
// The fallback method the subclass will call if not overridden
protected doStuff(): void {
alert("Default doStuff");
};
}
class B extends A {
// Override doStuff()
protected doStuff() {
alert("Submethod called");
}
}
class C extends A {
// No doStuff() overriding, fallback on A.doStuff()
}
var b = new B();
var c = new C();
Try it Here
there's an interesting way to achive another goal which is to have a strongly type class base on json with a very powerfull tools that i used few days ago for first time to translate tradedoubler json result into classes
Is a simple tool: copy your json source paste and in few second you will have a strongly typed class json oriented . In this manner you will use these classes which is more powerful and simply to use.
I had the same issue and the fix was to remove the placeholders and I changed the design of the form to use labels instead of placeholders...
For usages of Write-Host
, PSScriptAnalyzer
produces the following diagnostic:
Avoid using
Write-Host
because it might not work in all hosts, does not work when there is no host, and (prior to PS 5.0) cannot be suppressed, captured, or redirected. Instead, useWrite-Output
,Write-Verbose
, orWrite-Information
.
See the documentation behind that rule for more information. Excerpts for posterity:
The use of
Write-Host
is greatly discouraged unless in the use of commands with theShow
verb. TheShow
verb explicitly means "show on the screen, with no other possibilities".Commands with the
Show
verb do not have this check applied.
Jeffrey Snover has a blog post Write-Host Considered Harmful in which he claims Write-Host is almost always the wrong thing to do because it interferes with automation and provides more explanation behind the diagnostic, however the above is a good summary.
Add this in your HTML or PHP code:
<?php if (!isset($_SERVER['HTTP_USER_AGENT']) || stripos($_SERVER['HTTP_USER_AGENT'], 'Speed Insights') === false): ?>
<script>
(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
})(window,document,'script','https://www.google-analytics.com/analytics.js','ga');
ga('create', 'UA-PUT YOUR GOOGLE ANALYTICS ID HERE', 'auto');
ga('send', 'pageview');
</script>
<?php endif; ?>
This works fine with JavaScript:
<script>
if(navigator.userAgent.indexOf("Speed Insights") == -1) {
(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
})(window,document,'script','https://www.google-analytics.com/analytics.js','ga');
ga('create', 'UA-<PUT YOUR GOOGLE ANALYTICS ID HERE>', 'auto');
ga('send', 'pageview');
}
</script>
NiloVelez already said: Obviously, it won't make any real improvement, but if your only concern is getting a 100/100 score this will do it.
npm ERR! node -v v0.8.0
npm ERR! npm -v 1.1.32
Update your node.js installation.The following commands should do it (from here):
sudo npm cache clean -f
sudo npm install -g n
sudo n stable
Edit: okay, if you really have a good reason to run an ancient version of the software, npm set ca null
will fix the issue. It happened, because built-in npm certificate has expired over the years.
You could use java-aes-crypto or Facebook's Conceal
java-aes-crypto
Quoting from the repo
A simple Android class for encrypting & decrypting strings, aiming to avoid the classic mistakes that most such classes suffer from.
Facebook's conceal
Quoting from the repo
Conceal provides easy Android APIs for performing fast encryption and authentication of data
These are created by the Python interpreter when a .py
file is imported, and they contain the "compiled bytecode" of the imported module/program, the idea being that the "translation" from source code to bytecode (which only needs to be done once) can be skipped on subsequent import
s if the .pyc
is newer than the corresponding .py
file, thus speeding startup a little. But it's still interpreted.
If you can't use LIMIT or LIMIT is not an option for your query tool. You can use "ROWNUM" instead, but you will need a sub query:
SELECT FIELD_1, ALIAS1
FROM(SELECT FIELD_1, COUNT(FIELD_1) ALIAS1
FROM TABLENAME
GROUP BY FIELD_1
ORDER BY COUNT(FIELD_1) DESC)
WHERE ROWNUM = 1
Put your code in handler as follows,
public void timerDelayRunForScroll(long time) {
Handler handler = new Handler();
handler.postDelayed(new Runnable() {
public void run() {
try {
lstView.smoothScrollToPosition(YOUR_POSITION);
} catch (Exception e) {}
}
}, time);
}
and then call this method like,
timerDelayRunForScroll(100);
CHEERS!!!
From the docs:
_trackTrans() Sends both the transaction and item data to the Google Analytics server. This method should be called after _trackPageview(), and used in conjunction with the _addItem() and addTrans() methods. It should be called after items and transaction elements have been set up.
So, according to the docs, the items get sent when you call trackTrans(). Until you do, you can add items, but the transaction will not be sent.
Edit: Further reading led me here:
http://www.analyticsmarket.com/blog/edit-ecommerce-data
Where it clearly says you can start another transaction with an existing ID. When you commit it, the new items you listed will be added to that transaction.
Executing the command: Devenv.exe /ResetSettings like :
C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE>devenv.exe /ResetSettings , resolved my issue :D
For more: https://msdn.microsoft.com/en-us/library/ms241273.aspx
set DSKTOPDIR="D:\test"
set IPADDRESS="23.23.3.23"
>%DSKTOPDIR%\script.ftp ECHO cd %PAY_REP%
>>%DSKTOPDIR%\script.ftp ECHO mget *.report
>>%DSKTOPDIR%\script.ftp ECHO bye
:: run PSFTP Commands
psftp <domain>@%IPADDRESS% -b %DSKTOPDIR%\script.ftp
Set values using set commands before above lines.
I believe this helps you.
Referre psfpt setup for below link https://www.ssh.com/ssh/putty/putty-manuals/0.68/Chapter6.html
Like this:
import java.util.*;
Set<Integer> a = new HashSet<Integer>();
a.add( 1);
a.add( 2);
a.add( 3);
Or adding from an Array/ or multiple literals; wrap to a list, first.
Integer[] array = new Integer[]{ 1, 4, 5};
Set<Integer> b = new HashSet<Integer>();
b.addAll( Arrays.asList( b)); // from an array variable
b.addAll( Arrays.asList( 8, 9, 10)); // from literals
To get the intersection:
// copies all from A; then removes those not in B.
Set<Integer> r = new HashSet( a);
r.retainAll( b);
// and print; r.toString() implied.
System.out.println("A intersect B="+r);
Hope this answer helps. Vote for it!
As many mentioned the recursive approach, this is the function you can pass the searched name and the property to begin with to:
public static void loopAttributes(PropertyInfo prop, string targetAttribute, object tempObject)
{
foreach (PropertyInfo nestedProp in prop.PropertyType.GetProperties())
{
if(nestedProp.Name == targetAttribute)
{
//found the matching attribute
}
loopAttributes(nestedProp, targetAttribute, prop.GetValue(tempObject);
}
}
//in the main function
foreach (PropertyInfo prop in rootObject.GetType().GetProperties())
{
loopAttributes(prop, targetAttribute, rootObject);
}
I don't believe a switch/case is any faster than a series of if/elseif's. They do the same thing, but if/elseif's you can check multiple variables. You cannot use a switch/case on more than one value.
In case Chrome tells you "This can only be added from the Chrome Web Store", you can try the following:
Use re.findall
or re.finditer
instead.
re.findall(pattern, string)
returns a list of matching strings.
re.finditer(pattern, string)
returns an iterator over MatchObject
objects.
Example:
re.findall( r'all (.*?) are', 'all cats are smarter than dogs, all dogs are dumber than cats')
# Output: ['cats', 'dogs']
[x.group() for x in re.finditer( r'all (.*?) are', 'all cats are smarter than dogs, all dogs are dumber than cats')]
# Output: ['all cats are', 'all dogs are']
I have created this easy to use library that does exactly what you are looking for: ss-search
import { search } from "ss-search"
const data = [
{
"foo" : "bar",
"bar" : "sit"
},
{
"foo" : "lorem",
"bar" : "ipsum"
},
{
"foo" : "dolor",
"bar" : "amet"
}
]
const searchKeys = ["foor", "bar"]
const searchText = "dolor"
const results = search(data, keys, searchText)
// results: [{ "foo": "dolor", "bar": "amet" }]
Here is a code to get custom cell from index path
NSIndexPath *indexPath = [NSIndexPath indexPathForRow:2 inSection:0];
YourCell *cell = (YourCell *)[tblRegister cellForRowAtIndexPath:indexPath];
For Swift
let indexpath = NSIndexPath(forRow: 2, inSection: 0)
let currentCell = tblTest.cellForRowAtIndexPath(indexpath) as! CellTest
For Swift 4 (for collectionview)
let indexpath = NSIndexPath(row: 2, section: 0)
let cell = self.colVw!.cellForItem(at: indexpath as IndexPath) as? ColViewCell
You can use readstream and pipe to read the file line by line without read all the file into memory one time.
var fs = require('fs'),
es = require('event-stream'),
os = require('os');
var s = fs.createReadStream(path)
.pipe(es.split())
.pipe(es.mapSync(function(line) {
//pause the readstream
s.pause();
console.log("line:", line);
s.resume();
})
.on('error', function(err) {
console.log('Error:', err);
})
.on('end', function() {
console.log('Finish reading.');
})
);
If you are looking to have three digits in the form of an RGB colour code, the following code should do just that.
i = Image.open(path)
pixels = i.load() # this is not a list, nor is it list()'able
width, height = i.size
all_pixels = []
for x in range(width):
for y in range(height):
cpixel = pixels[x, y]
all_pixels.append(cpixel)
This may work for you.
I recommend using composition instead of inheritence whenever possible. Use interfaces but use member objects for base implementation. That way, you can define a factory that constructs your objects to behave in a certain way. If you want to change the behavior then you make a new factory method (or abstract factory) that creates different types of sub-objects.
In some cases, you may find that your primary objects don't need interfaces at all, if all of the mutable behavior is defined in helper objects.
So instead of IPet or PetBase, you might end up with a Pet which has an IFurBehavior parameter. The IFurBehavior parameter is set by the CreateDog() method of the PetFactory. It is this parameter which is called for the shed() method.
If you do this you'll find your code is much more flexible and most of your simple objects deal with very basic system-wide behaviors.
I recommend this pattern even in multiple-inheritence languages.
In the given example, simply used double quotes instead of single quotes as outer escape mechanism:
alias rxvt="urxvt -fg '#111111' -bg '#111111'"
This approach is suited for many cases where you just want to pass a fixed string to a command: Just check how the shell will interpret the double-quoted string through an echo
, and escape characters with backslash if necessary.
In the example, you'd see that double quotes are sufficient to protect the string:
$ echo "urxvt -fg '#111111' -bg '#111111'"
urxvt -fg '#111111' -bg '#111111'
If the compiler supports Named Return Value Optimization (http://msdn.microsoft.com/en-us/library/ms364057(v=vs.80).aspx), you can directly return the vector provide that there is no:
NRVO optimizes out the redundant copy constructor and destructor calls and thus improves overall performance.
There should be no real diff in your example.
Works fine too:
/* small screen portrait */
@media (max-width: 321px) {
.pull-right {
float: none!important;
}
}
/* small screen lanscape */
@media (max-width: 480px) {
.pull-right {
float: none!important;
}
}
This will achieve what you're asking about:
INSERT INTO table1 (ID, Name)
VALUES (123, 'Timmy'),
(124, 'Jonny'),
(125, 'Sally');
For future developers, you can also insert from another table:
INSERT INTO table1 (ID, Name)
SELECT
ID,
Name
FROM table2
Or even from multiple tables:
INSERT INTO table1 (column2, column3)
SELECT
t2.column,
t3.column
FROM table2 t2
INNER JOIN table3 t3
ON t2.ID = t3.ID
This will work for any resolution,
button{
position:absolute;
bottom: 5%;
right:20%;
}
You can store favourites with no associated menu in a separate table:
CREATE TABLE FavoriteWithoutMenu
(
FavoriteWithoutMenuId uuid NOT NULL, --Primary key
UserId uuid NOT NULL,
RecipeId uuid NOT NULL,
UNIQUE KEY (UserId, RecipeId)
)
From Files and Filegroups Architecture
Secondary data files
Secondary data files make up all the data files, other than the primary data file. Some databases may not have any secondary data files, while others have several secondary data files. The recommended file name extension for secondary data files is .ndf.
Also from file extension NDF - Microsoft SQL Server secondary data file
See Understanding Files and Filegroups
Secondary data files are optional, are user-defined, and store user data. Secondary files can be used to spread data across multiple disks by putting each file on a different disk drive. Additionally, if a database exceeds the maximum size for a single Windows file, you can use secondary data files so the database can continue to grow.
The recommended file name extension for secondary data files is .ndf.
/
For example, three files, Data1.ndf, Data2.ndf, and Data3.ndf, can be created on three disk drives, respectively, and assigned to the filegroup fgroup1. A table can then be created specifically on the filegroup fgroup1. Queries for data from the table will be spread across the three disks; this will improve performance. The same performance improvement can be accomplished by using a single file created on a RAID (redundant array of independent disks) stripe set. However, files and filegroups let you easily add new files to new disks.
select age(timestamp_A, timestamp_B)
Answering to Igor's comment:
select age('2013-02-28 11:01:28'::timestamp, '2011-12-31 11:00'::timestamp);
age
-------------------------------
1 year 1 mon 28 days 00:01:28
With an Excel vba script to provision and create accounts. I was needing to grant full rights permissions to the folder and subfolders that were created by the tool using our administrators 'x' account to our new user.
cacls looked something like this: cacls \FileServer\Users\Username /e /g Domain\Username:C
I needed to migrate this code to Windows 7 and beyond. My solution turned out to be:
icacls \FileServer\Users\Username /grant:r Domain\Username:(OI)(CI)F /t
/grant:r - Grants specified user access rights. Permissions replace previously granted explicit permissions. Without :r, permissions are added to any previously granted explicit permissions
(OI)(CI) - This folder, subfolders, and files.
F - Full Access
/t - Traverse all subfolders to match files/directories.
What this gave me was a folder on this server that the user could only see that folder and created subfolders, that they could read and write files. As well as create new folders.
The easiest solution is to just do this
double g = (double) 1 / 3;
What this does, since you didn't enter 1.0 / 3.0, is let you manually convert it to data type double since Java assumed it was Integer division, and it would do it even if it meant narrowing the conversion. This is what is called a cast operator. Here we cast only one operand, and this is enough to avoid integer division (rounding towards zero)
I was trying to setup a Rails project in my freshly installed Ubuntu 16.04. I ran into the same issue while running bundle. Running
sudo apt-get install aptitude
followed by
sudo apt-get install libpq-dev
Solved it for me.
Sample form using PHP for direct payments.
<form action="https://www.paypal.com/cgi-bin/webscr" method="post">
<input type="hidden" name="cmd" value="_cart">
<input type="hidden" name="upload" value="1">
<input type="hidden" name="business" value="[email protected]">
<input type="hidden" name="item_name_' . $x . '" value="' . $product_name . '">
<input type="hidden" name="amount_' . $x . '" value="' . $price . '">
<input type="hidden" name="quantity_' . $x . '" value="' . $each_item['quantity'] . '">
<input type="hidden" name="custom" value="' . $product_id_array . '">
<input type="hidden" name="notify_url" value="https://www.yoursite.com/my_ipn.php">
<input type="hidden" name="return" value="https://www.yoursite.com/checkout_complete.php">
<input type="hidden" name="rm" value="2">
<input type="hidden" name="cbt" value="Return to The Store">
<input type="hidden" name="cancel_return" value="https://www.yoursite.com/paypal_cancel.php">
<input type="hidden" name="lc" value="US">
<input type="hidden" name="currency_code" value="USD">
<input type="image" src="http://www.paypal.com/en_US/i/btn/x-click-but01.gif" name="submit" alt="Make payments with PayPal - its fast, free and secure!">
</form>
kindly go through the fields notify_url, return, cancel_return
sample code for handling ipn (my_ipn.php) which is requested by paypal after payment has been made.
For more information on creating a IPN, please refer to this link.
<?php
// Check to see there are posted variables coming into the script
if ($_SERVER['REQUEST_METHOD'] != "POST")
die("No Post Variables");
// Initialize the $req variable and add CMD key value pair
$req = 'cmd=_notify-validate';
// Read the post from PayPal
foreach ($_POST as $key => $value) {
$value = urlencode(stripslashes($value));
$req .= "&$key=$value";
}
// Now Post all of that back to PayPal's server using curl, and validate everything with PayPal
// We will use CURL instead of PHP for this for a more universally operable script (fsockopen has issues on some environments)
//$url = "https://www.sandbox.paypal.com/cgi-bin/webscr";
$url = "https://www.paypal.com/cgi-bin/webscr";
$curl_result = $curl_err = '';
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $req);
curl_setopt($ch, CURLOPT_HTTPHEADER, array("Content-Type: application/x-www-form-urlencoded", "Content-Length: " . strlen($req)));
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_VERBOSE, 1);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($ch, CURLOPT_TIMEOUT, 30);
$curl_result = @curl_exec($ch);
$curl_err = curl_error($ch);
curl_close($ch);
$req = str_replace("&", "\n", $req); // Make it a nice list in case we want to email it to ourselves for reporting
// Check that the result verifies
if (strpos($curl_result, "VERIFIED") !== false) {
$req .= "\n\nPaypal Verified OK";
} else {
$req .= "\n\nData NOT verified from Paypal!";
mail("[email protected]", "IPN interaction not verified", "$req", "From: [email protected]");
exit();
}
/* CHECK THESE 4 THINGS BEFORE PROCESSING THE TRANSACTION, HANDLE THEM AS YOU WISH
1. Make sure that business email returned is your business email
2. Make sure that the transaction?s payment status is ?completed?
3. Make sure there are no duplicate txn_id
4. Make sure the payment amount matches what you charge for items. (Defeat Price-Jacking) */
// Check Number 1 ------------------------------------------------------------------------------------------------------------
$receiver_email = $_POST['receiver_email'];
if ($receiver_email != "[email protected]") {
//handle the wrong business url
exit(); // exit script
}
// Check number 2 ------------------------------------------------------------------------------------------------------------
if ($_POST['payment_status'] != "Completed") {
// Handle how you think you should if a payment is not complete yet, a few scenarios can cause a transaction to be incomplete
}
// Check number 3 ------------------------------------------------------------------------------------------------------------
$this_txn = $_POST['txn_id'];
//check for duplicate txn_ids in the database
// Check number 4 ------------------------------------------------------------------------------------------------------------
$product_id_string = $_POST['custom'];
$product_id_string = rtrim($product_id_string, ","); // remove last comma
// Explode the string, make it an array, then query all the prices out, add them up, and make sure they match the payment_gross amount
// END ALL SECURITY CHECKS NOW IN THE DATABASE IT GOES ------------------------------------
////////////////////////////////////////////////////
// Homework - Examples of assigning local variables from the POST variables
$txn_id = $_POST['txn_id'];
$payer_email = $_POST['payer_email'];
$custom = $_POST['custom'];
// Place the transaction into the database
// Mail yourself the details
mail("[email protected]", "NORMAL IPN RESULT YAY MONEY!", $req, "From: [email protected]");
?>
The below image will help you in understanding the paypal process.
For further reading refer to the following links;
hope this helps you..:)
All kernels will use some assembly code as well.
I have something different stuff for you which is easy and effective.
<style>
.case-after:after { // set your properties here like eg:
color:#3fd309 !important;
}
.case-before:before { // set your properties here like eg:
color:#151715 !important;
}
</style>
// case for after
$('#button-id').on('click', function() {
$(".target-div").toggleClass('case-after');
});
// case for before
$('#button-id').on('click', function() {
$(".target-div").toggleClass('case-before');
});
For Chrome they changed autoplay policy, so you can read about here:
var promise = document.querySelector('audio').play();
if (promise !== undefined) {
promise.then(_ => {
// Autoplay started!
}).catch(error => {
// Autoplay was prevented.
// Show a "Play" button so that user can start playback.
});
}
I've made an alternative to the other good answers on here that uses PowerShell, but mine also saves the list to a file. Will share it here in case anyone else needs wants something like that.
Warning: Code overwrites "longfilepath.txt" in the current working directory. I know it's unlikely you'd have one already, but just in case!
Purposely wanted it in a single line:
Out-File longfilepath.txt ; cmd /c "dir /b /s /a" | ForEach-Object { if ($_.length -gt 250) {$_ | Out-File -append longfilepath.txt}}
Detailed instructions:
cat longfilepath.txt | sort
Explanation:
Out-File longfilepath.txt ;
– Create (or overwrite) a blank file titled 'longfilepath.txt'. Semi-colon to separate commands.
cmd /c "dir /b /s /a" |
– Run dir command on PowerShell, /a
to show all files including hidden files. |
to pipe.
ForEach-Object { if ($_.length -gt 250) {$_ | Out-File -append longfilepath.txt}}
– For each line (denoted as $_), if the length is greater than 250, append that line to the file.
Using pathlib
(added in Python 3.4 or a backport available on PyPI):
from pathlib import Path
file = Path() / 'doc.txt' # or Path('./doc.txt')
size = file.stat().st_size
This is really only an interface around os.stat
, but using pathlib
provides an easy way to access other file related operations.
Pseudo elements like :after
, :before
are only for container elements. Elements starting and closing in a single place like <input/>
, <img>
etc are not container elements and hence pseudo elements are not supported. Once you apply a pseudo element to container element like <div>
and if you inspect the code(see the image) you can understand what I mean. Actually the pseudo element is created inside the container element. This is not possible in case of <input>
or <img>
In addition, you can use sscanf
for some very simple scenarios, for example when you know exactly how many parts the string has and what it consists of. You can also parse the arguments on the fly. Do not use it for user inputs because the function will not report conversion errors.
Example:
char text[] = "1:22:300:4444:-5";
int i1, i2, i3, i4, i5;
sscanf(text, "%d:%d:%d:%d:%d", &i1, &i2, &i3, &i4, &i5);
printf("%d, %d, %d, %d, %d", i1, i2, i3, i4, i5);
Output:
1, 22, 300, 4444, -5
For anything more advanced, strtok() and strtok_r() are your best options, as mentioned in other answers.
I already found it:
SELECT grantee, privilege_type
FROM information_schema.role_table_grants
WHERE table_name='mytable'
Or you could figure out the exacting amount of hours and minutes and have that displayed by puttin it into the timer app that already exist in every iphone :)
Use require('child_process').exec
instead of spawn for a more specific error message!
for example:
var exec = require('child_process').exec;
var commandStr = 'java -jar something.jar';
exec(commandStr, function(error, stdout, stderr) {
if(error || stderr) console.log(error || stderr);
else console.log(stdout);
});
OpenCV Specific
Opencv supports filesystem, probably through its dependency Boost.
#include <opencv2/core/utils/filesystem.hpp>
cv::utils::fs::createDirectory(outputDir);
You can use the CONCAT
with CURDATE()
to the entire time of the day and then filter by using the BETWEEN
in WHERE
condition:
SELECT users.id, DATE_FORMAT(users.signup_date, '%Y-%m-%d')
FROM users
WHERE (users.signup_date BETWEEN CONCAT(CURDATE(), ' 00:00:00') AND CONCAT(CURDATE(), ' 23:59:59'))
Following from Daniel Vassallo's answer, here is a version that deals with the closure issue in a simpler way.
Since since all markers will have an individual InfoWindow and since JavaScript doesn't care if you add extra properties to an object, all you need to do is add an InfoWindow to the Marker's properties and then call the .open()
on the InfoWindow from itself!
Edit: With enough data, the pageload could take a lot of time, so rather than construction the InfoWindow with the marker, the construction should happen only when needed. Note that any data used to construct the InfoWindow must be appended to the Marker as a property (data
). Also note that after the first click event, infoWindow
will persist as a property of it's marker so the browser doesn't need to constantly reconstruct.
var locations = [
['Bondi Beach', -33.890542, 151.274856, 4],
['Coogee Beach', -33.923036, 151.259052, 5],
['Cronulla Beach', -34.028249, 151.157507, 3],
['Manly Beach', -33.80010128657071, 151.28747820854187, 2],
['Maroubra Beach', -33.950198, 151.259302, 1]
];
var map = new google.maps.Map(document.getElementById('map'), {
center: new google.maps.LatLng(-33.92, 151.25)
});
for (i = 0; i < locations.length; i++) {
marker = new google.maps.Marker({
position: new google.maps.LatLng(locations[i][1], locations[i][2]),
map: map,
data: {
name: locations[i][0]
}
});
marker.addListener('click', function() {
if(!this.infoWindow) {
this.infoWindow = new google.maps.InfoWindow({
content: this.data.name;
});
}
this.infoWindow.open(map,this);
})
}
Please see the GridFS docs for details on storing such binary data.
Support for your specific language should be linked to at the bottom of the screen.
So after a number of tries, I found it working.
Please follow the order sequence it's very important else it won't work
axios.delete(URL, {
headers: {
Authorization: authorizationToken
},
data: {
source: source
}
});
$(document).ready(function() {_x000D_
$('#openFile').on('change', function(evt) {_x000D_
console.log(this.files[0].size);_x000D_
});_x000D_
});
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<form action="upload.php" enctype="multipart/form-data" method="POST" id="uploadform">_x000D_
<input id="openFile" name="img" type="file" />_x000D_
</form>
_x000D_
In my situation the problem was different. I don't know why, but even if directory on host had chmod 777
run on it, inside docker it was visible as 755
.
Running inside container sudo chmod 777 my_volume_dir
fixed it.
I had the same problem. This worked better:
Identify which level you want to modify: levels(iris$Species)
"setosa" "versicolor" "virginica"
So, setosa
is the first.
Then, write this:
levels(iris$Species)[1] <-"new name"
If the mouse over for all over the component is your option, you can directly is @hostListener
to handle the events to perform the mouse over al below.
import {HostListener} from '@angular/core';
@HostListener('mouseenter') onMouseEnter() {
this.hover = true;
this.elementRef.nativeElement.addClass = 'edit';
}
@HostListener('mouseleave') onMouseLeave() {
this.hover = false;
this.elementRef.nativeElement.addClass = 'un-edit';
}
Its available in @angular/core
. I tested it in angular 4.x.x
I was having the same problem running a single-node pseudo-distributed instance. Couldn't figure out how to solve it, but a quick workaround is to manually start a DataNode with
hadoop-x.x.x/bin/hadoop datanode
I think it is worth to mention for git beginners:
If you already have a file checked in, and you want to ignore it, Git will not ignore the file if you add a rule later. In those cases, you must untrack the file first, by running the following command in your terminal:
git rm --cached
So if you want add to ignore some directories in your local repository (which already exist) after editing .gitignore you want to run this on your root dir
git rm --cached -r .
git add .
It will basically 'refresh' your local repo and unstage ignored files.
See:
On Mac OS press: CMD
+OPTION
+J
for console
As far as the HTML you appear to have set that part up correctly. You already have the enctype="multipart/form-data"
which is very important to have on the form.
As far as your php.ini
setup, sometimes on systems multiple php.ini
files exist. Be sure you are editing the correct one. I know you said you have configured your php.ini
file to have file uploads, but did you also set your upload_max_filesize
and post_max_size
to be larger than the file you are trying to upload? So you should have:
file_uploads = On; sounds like you already did this
post_max_size = 8M; change this higher if needed
upload_max_filesize = 8M; change this higher if needed
Does your directory: "c:\wamp\tmp"
have both read and write permissions? Did you remember to restart Apache after you made the php.ini
changes?
Maybe this answer here will help you. Seems that you want to dispose of the context periodically. This is because the context gets bigger and bigger as the attached entities grows.
This is a better code that will help you through.
With your database, but rather, I have used mysql not mysqli
Enjoy it.
<body>
<form action="" method="post">
<input name="search" type="search" autofocus><input type="submit" name="button">
</form>
<table>
<tr><td><b>First Name</td><td></td><td><b>Last Name</td></tr>
<?php
$con=mysql_connect('localhost', 'root', '');
$db=mysql_select_db('employee');
if(isset($_POST['button'])){ //trigger button click
$search=$_POST['search'];
$query=mysql_query("select * from employees where first_name like '%{$search}%' || last_name like '%{$search}%' ");
if (mysql_num_rows($query) > 0) {
while ($row = mysql_fetch_array($query)) {
echo "<tr><td>".$row['first_name']."</td><td></td><td>".$row['last_name']."</td></tr>";
}
}else{
echo "No employee Found<br><br>";
}
}else{ //while not in use of search returns all the values
$query=mysql_query("select * from employees");
while ($row = mysql_fetch_array($query)) {
echo "<tr><td>".$row['first_name']."</td><td></td><td>".$row['last_name']."</td></tr>";
}
}
mysql_close();
?>
I had the need to keep a pod running for subsequent kubectl exec calls and as the comments above pointed out my pod was getting killed by my k8s cluster because it had completed running all its tasks. I managed to keep my pod running by simply kicking the pod with a command that would not stop automatically as in:
kubectl run YOUR_POD_NAME -n YOUR_NAMESPACE --image SOME_PUBLIC_IMAGE:latest --command tailf /dev/null
Use set
if you don't care about items order or repetition. Use list comprehensions if you do:
>>> def diff(first, second):
second = set(second)
return [item for item in first if item not in second]
>>> diff(A, B)
[1, 3, 4]
>>> diff(B, A)
[5]
>>>
The copy
command is a SQL*Plus command (not a SQL Developer command). If you have your tnsname entries setup for SID1 and SID2 (e.g. try a tnsping), you should be able to execute your command.
Another assumption is that table1 has the same columns as the message_table (and the columns have only the following data types: CHAR, DATE, LONG, NUMBER or VARCHAR2). Also, with an insert command, you would need to be concerned about primary keys (e.g. that you are not inserting duplicate records).
I tried a variation of your command as follows in SQL*Plus (with no errors):
copy from scott/tiger@db1 to scott/tiger@db2 create new_emp using select * from emp;
After I executed the above statement, I also truncate the new_emp table and executed this command:
copy from scott/tiger@db1 to scott/tiger@db2 insert new_emp using select * from emp;
With SQL Developer, you could do the following to perform a similar approach to copying objects:
On the tool bar, select Tools>Database copy.
Identify source and destination connections with the copy options you would like.
For object type, select table(s).
The copy command approach is old and its features are not being updated with the release of new data types. There are a number of more current approaches to this like Oracle's data pump (even for tables).
Good news! At the time of writing, this feature has already been implemented in the 0.10.12-insiders release and carried out through 0.10.14-insiders. Hence we are going to have it in the upcoming version 1.0 Release of VS Code.
Implementation Ref: Implement -w/--wait command line arg
Use Expand-Archive
cmdlet with one of parameter set:
Expand-Archive -LiteralPath C:\source\file.Zip -DestinationPath C:\destination
Expand-Archive -Path file.Zip -DestinationPath C:\destination
As @Didier said, you can change your delimiter to something other than /
:
grep -rl $oldstring /path/to/folder | xargs sed -i s@$oldstring@$newstring@g
Set the appended div to be hidden initially through css visibility:hidden
.
In [30]: pd.Series([1,2,3,4,'.']).convert_objects(convert_numeric=True)
Out[30]:
0 1
1 2
2 3
3 4
4 NaN
dtype: float64
Swift 3.0 Version of Jake's Answer
// Create the alert controller
let alertController = UIAlertController(title: "Alert!", message: "There is no items for the current user", preferredStyle: .alert)
// Create the actions
let okAction = UIAlertAction(title: "OK", style: UIAlertActionStyle.default) {
UIAlertAction in
NSLog("OK Pressed")
}
let cancelAction = UIAlertAction(title: "Cancel", style: UIAlertActionStyle.cancel) {
UIAlertAction in
NSLog("Cancel Pressed")
}
// Add the actions
alertController.addAction(okAction)
alertController.addAction(cancelAction)
// Present the controller
self.present(alertController, animated: true, completion: nil)
Replace below characters
~ ! @ # $ % ^ & * ( ) _ +
` - =
{ } |
[ ] \
: "
; '
< > ?
, .
with this SQL
SELECT note as note_original,
REPLACE(
REPLACE(
REPLACE(
REPLACE(
REPLACE(
REPLACE(
REPLACE(
REPLACE(
REPLACE(
REPLACE(
REPLACE(
REPLACE(
REPLACE(
REPLACE(
REPLACE(
REPLACE(
REPLACE(
REPLACE(
REPLACE(
REPLACE(
REPLACE(
REPLACE(
REPLACE(
REPLACE(
REPLACE(
REPLACE(
REPLACE(
REPLACE(
REPLACE(
REPLACE(
REPLACE(
REPLACE(
REPLACE(note, '\"', ''),
'.', ''),
'?', ''),
'`', ''),
'<', ''),
'=', ''),
'{', ''),
'}', ''),
'[', ''),
']', ''),
'|', ''),
'\'', ''),
':', ''),
';', ''),
'~', ''),
'!', ''),
'@', ''),
'#', ''),
'$', ''),
'%', ''),
'^', ''),
'&', ''),
'*', ''),
'_', ''),
'+', ''),
',', ''),
'/', ''),
'(', ''),
')', ''),
'-', ''),
'>', ''),
' ', '-'),
'--', '-') as note_changed FROM invheader
Looks like you have an extra parenthesis.
The following portion is parsed as an assignment so the interpreter/compiler will look for a semi-colon or attempt to insert one if certain conditions are met.
foob_name = $this.attr('name').replace(/\[(\d+)\]/, function($0, $1) {
return '[' + (+$1 + 1) + ']';
})
openecry.com is a broker with plenty of information on an API and instructions on how to do yours. There are also other brokers with the OEC platform and all the bells and whistles a pro could ask for.
Referer is not a compulsory header. It may or may not be there or could be modified/fictitious. Rely on it at your own risk. Anyways, you should wrap your call so you do not get an undefined index error:
$server = isset($_SERVER['HTTP_REFERER']) ? $_SERVER['HTTP_REFERER'] : "";
This is the best one I've found.
import sys
sys.executable
will give you the interpreter. You can select the interpreter you want when you create a new notebook. Make sure the path to your anaconda interpreter is added to your path (somewhere in your bashrc/bash_profile most likely).
For example I used to have the following line in my .bash_profile, that I added manually :
export PATH="$HOME/anaconda3/bin:$PATH"
EDIT: As mentioned in a comment, this is not the proper way to add anaconda to the path. Quoting Anaconda's doc, this should be done instead after install, using conda init
:
Should I add Anaconda to the macOS or Linux PATH?
We do not recommend adding Anaconda to the PATH manually. During installation, you will be asked “Do you wish the installer to initialize Anaconda3 by running conda init?” We recommend “yes”. If you enter “no”, then conda will not modify your shell scripts at all. In order to initialize after the installation process is done, first run
source <path to conda>/bin/activate
and then runconda init
I can suggest another solution (alternative to git-submodules) for your problem - gil (git links) tool
It allows to describe and manage complex git repositories dependencies.
Also it provides a solution to the git recursive submodules dependency problem.
Consider you have the following project dependencies: sample git repository dependency graph
Then you can define .gitlinks
file with repositories relation description:
# Projects
CppBenchmark CppBenchmark https://github.com/chronoxor/CppBenchmark.git master
CppCommon CppCommon https://github.com/chronoxor/CppCommon.git master
CppLogging CppLogging https://github.com/chronoxor/CppLogging.git master
# Modules
Catch2 modules/Catch2 https://github.com/catchorg/Catch2.git master
cpp-optparse modules/cpp-optparse https://github.com/weisslj/cpp-optparse.git master
fmt modules/fmt https://github.com/fmtlib/fmt.git master
HdrHistogram modules/HdrHistogram https://github.com/HdrHistogram/HdrHistogram_c.git master
zlib modules/zlib https://github.com/madler/zlib.git master
# Scripts
build scripts/build https://github.com/chronoxor/CppBuildScripts.git master
cmake scripts/cmake https://github.com/chronoxor/CppCMakeScripts.git master
Each line describe git link in the following format:
Finally you have to update your root sample repository:
# Clone and link all git links dependencies from .gitlinks file
gil clone
gil link
# The same result with a single command
gil update
As the result you'll clone all required projects and link them to each other in a proper way.
If you want to commit all changes in some repository with all changes in child linked repositories you can do it with a single command:
gil commit -a -m "Some big update"
Pull, push commands works in a similar way:
gil pull
gil push
Gil (git links) tool supports the following commands:
usage: gil command arguments
Supported commands:
help - show this help
context - command will show the current git link context of the current directory
clone - clone all repositories that are missed in the current context
link - link all repositories that are missed in the current context
update - clone and link in a single operation
pull - pull all repositories in the current directory
push - push all repositories in the current directory
commit - commit all repositories in the current directory
More about git recursive submodules dependency problem.
find . -type f -printf '%T@ %p\n' \
| sort -n | tail -1 | cut -f2- -d" "
For a huge tree, it might be hard for sort
to keep everything in memory.
%T@
gives you the modification time like a unix timestamp, sort -n
sorts numerically, tail -1
takes the last line (highest timestamp), cut -f2 -d" "
cuts away the first field (the timestamp) from the output.
Edit: Just as -printf
is probably GNU-only, ajreals usage of stat -c
is too. Although it is possible to do the same on BSD, the options for formatting is different (-f "%m %N"
it would seem)
And I missed the part of plural; if you want more then the latest file, just bump up the tail argument.
Execution Timeout is 90 seconds for .NET
Framework 1.0 and 1.1, 110 seconds otherwise.
If you need to change defult settings you need to do it in your web.config
under <httpRuntime>
<httpRuntime executionTimeout = "number(in seconds)"/>
But Remember:
This time-out applies only if the debug attribute in the compilation element is False.
Have look at in detail about compilation Element
Have look at this document about httpRuntime Element
Dim SMTPClientObj As New Net.Mail.SmtpClient
SMTPClientObj.UseDefaultCredentials = False
SMTPClientObj.Credentials = New System.Net.NetworkCredential("[email protected]", "mypwd")
SMTPClientObj.Host = "smtp.gmail.com"
SMTPClientObj.Port = 587
SMTPClientObj.EnableSsl = True
SMTPClientObj.Send("[email protected]","[email protected]","test","testbody")
If you get an error like "The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.5.1 Authentication Required. Learn more at" as I get before this, make sure the line SMTPClientObj.UseDefaultCredentials = False
included and this line should before the SMTPClientObj.Credentials
.
I did try to switch these 2 lines the opposite way and the 5.5.1 Authentication Required error returned.
private ViewPager viewPager;
viewPager = (ViewPager) findViewById(R.id.pager);
mAdapter = new TabsPagerAdapter(getSupportFragmentManager());
viewPager.setAdapter(mAdapter);
viewPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
@Override
public void onPageSelected(int position) {
// on changing the page
// make respected tab selected
actionBar.setSelectedNavigationItem(position);
}
@Override
public void onPageScrolled(int arg0, float arg1, int arg2) {
}
@Override
public void onPageScrollStateChanged(int arg0) {
}
});
}
@Override
public void onTabReselected(Tab tab, FragmentTransaction ft) {
}
@Override
public void onTabSelected(Tab tab, FragmentTransaction ft) {
// on tab selected
// show respected fragment view
viewPager.setCurrentItem(tab.getPosition());
}
@Override
public void onTabUnselected(Tab tab, FragmentTransaction ft) {
}
//----firstly you have to alloc the double and single tap gesture-------//
UITapGestureRecognizer* doubleTap = [[UITapGestureRecognizer alloc] initWithTarget : self action : @selector (handleDoubleTap:)];
UITapGestureRecognizer* singleTap = [[UITapGestureRecognizer alloc] initWithTarget : self action : @selector (handleSingleTap:)];
[singleTap requireGestureRecognizerToFail : doubleTap];
[doubleTap setDelaysTouchesBegan : YES];
[singleTap setDelaysTouchesBegan : YES];
//-----------------------number of tap----------------//
[doubleTap setNumberOfTapsRequired : 2];
[singleTap setNumberOfTapsRequired : 1];
//------- add double tap and single tap gesture on the view or button--------//
[self.view addGestureRecognizer : doubleTap];
[self.view addGestureRecognizer : singleTap];
To register a comm .dll or .ocx on Windows 7 32-bit, do the following:
Copy .dll or .ocx to c:\windows\system32
Type cmd in Run menu, it will search cmd.exe, right click and click Run as Administrator
It will show a prompt at c:\windows\system32
Type
regsvr32 ocxname.ocx
to register .ocx
or
type regsvr32 dllname.dll
to register .dll
A property that has only a getter is said to be readonly. Cause no setter is provided, to change the value of the property (from outside).
C# has has a keyword readonly, that can be used on fields (not properties). A field that is marked as "readonly", can only be set once during the construction of an object (in the constructor).
private string _name = "Foo"; // field for property Name;
private bool _enabled = false; // field for property Enabled;
public string Name{ // This is a readonly property.
get {
return _name;
}
}
public bool Enabled{ // This is a read- and writeable property.
get{
return _enabled;
}
set{
_enabled = value;
}
}
Try this: Set your image crop dimensions and use this line in your CSS:
object-fit: cover;
Visual Studio 2015 Professional Update 3
If you are using Mac you can do following
Click Build --> Cancel from the Visual Studio Menu
or
Select Azure App Service Activity window --> Cancel it will cancel the publish activity.
I came up with this, where n is the number of lines you want to delete:
count=`wc -l file`
lines=`expr "$count" - n`
head -n "$lines" file > temp.txt
mv temp.txt file
rm -f temp.txt
It's a little roundabout, but I think it's easy to follow.
Just 2 simple steps to solve your issue
First of all check AppendDataBoundItems property and make it assign false
Secondly clear all the items using property .clear()
{
ddl1.Items.Clear();
ddl1.datasource = sql1;
ddl1.DataBind();
}
$configValue = Mage::getStoreConfig('sectionName/groupName/fieldName');
sectionName, groupName and fieldName are present in etc/system.xml file of your module.
The above code will automatically fetch config value of currently viewed store.
If you want to fetch config value of any other store than the currently viewed store then you can specify store ID as the second parameter to the getStoreConfig
function as below:
$store = Mage::app()->getStore(); // store info
$configValue = Mage::getStoreConfig('sectionName/groupName/fieldName', $store);
Another way would be to use .Net parser for HttpRequest. To do that you need to use a bit of reflection and simple class for WorkerRequest.
First create class that derives from HttpWorkerRequest (for simplicity you can use SimpleWorkerRequest):
public class MyWorkerRequest : SimpleWorkerRequest
{
private readonly string _size;
private readonly Stream _data;
private string _contentType;
public MyWorkerRequest(Stream data, string size, string contentType)
: base("/app", @"c:\", "aa", "", null)
{
_size = size ?? data.Length.ToString(CultureInfo.InvariantCulture);
_data = data;
_contentType = contentType;
}
public override string GetKnownRequestHeader(int index)
{
switch (index)
{
case (int)HttpRequestHeader.ContentLength:
return _size;
case (int)HttpRequestHeader.ContentType:
return _contentType;
}
return base.GetKnownRequestHeader(index);
}
public override int ReadEntityBody(byte[] buffer, int offset, int size)
{
return _data.Read(buffer, offset, size);
}
public override int ReadEntityBody(byte[] buffer, int size)
{
return ReadEntityBody(buffer, 0, size);
}
}
Then wherever you have you message stream create and instance of this class. I'm doing it like that in WCF Service:
[WebInvoke(Method = "POST",
ResponseFormat = WebMessageFormat.Json,
BodyStyle = WebMessageBodyStyle.Bare)]
public string Upload(Stream data)
{
HttpWorkerRequest workerRequest =
new MyWorkerRequest(data,
WebOperationContext.Current.IncomingRequest.ContentLength.
ToString(CultureInfo.InvariantCulture),
WebOperationContext.Current.IncomingRequest.ContentType
);
And then create HttpRequest using activator and non public constructor
var r = (HttpRequest)Activator.CreateInstance(
typeof(HttpRequest),
BindingFlags.Instance | BindingFlags.NonPublic,
null,
new object[]
{
workerRequest,
new HttpContext(workerRequest)
},
null);
var runtimeField = typeof (HttpRuntime).GetField("_theRuntime", BindingFlags.Static | BindingFlags.NonPublic);
if (runtimeField == null)
{
return;
}
var runtime = (HttpRuntime) runtimeField.GetValue(null);
if (runtime == null)
{
return;
}
var codeGenDirField = typeof(HttpRuntime).GetField("_codegenDir", BindingFlags.Instance | BindingFlags.NonPublic);
if (codeGenDirField == null)
{
return;
}
codeGenDirField.SetValue(runtime, @"C:\MultipartTemp");
After that in r.Files
you will have files from your stream.
You can also do it this way to reference the previous branch implicitly:
git checkout mainline
git pull
git merge -
git push
use test1
insert into employee(deptid) select deptid from test2.dbo.employee
Working with just one selector:
select {
width: 268px;
padding: 5px;
font-size: 16px;
line-height: 1;
border: 0;
border-radius: 5px;
height: 34px;
background: url(http://cdn1.iconfinder.com/data/icons/cc_mono_icon_set/blacks/16x16/br_down.png) no-repeat right #ddd;
-webkit-appearance: none;
background-position-x: 244px;
}
You could use for()
with assign()
to create many objects.
See the example from assign()
:
for(i in 1:6) { #-- Create objects 'r.1', 'r.2', ... 'r.6' --
nam <- paste("r", i, sep = ".")
assign(nam, 1:i)
Looking the new objects
ls(pattern = "^r..$")
I love the Shadow Wizard answer, which accually answers the question pretty nicelly. My jQuery twist on this which i use is here. http://jsfiddle.net/UJAe4/
After typing new value, the form is ready to send, just need to handle new values on the back end.
jQuery is:
(function ($)
{
$.fn.otherize = function (option_text, texts_placeholder_text) {
oSel = $(this);
option_id = oSel.attr('id') + '_other';
textbox_id = option_id + "_tb";
this.append("<option value='' id='" + option_id + "' class='otherize' >" + option_text + "</option>");
this.after("<input type='text' id='" + textbox_id + "' style='display: none; border-bottom: 1px solid black' placeholder='" + texts_placeholder_text + "'/>");
this.change(
function () {
oTbox = oSel.parent().children('#' + textbox_id);
oSel.children(':selected').hasClass('otherize') ? oTbox.show() : oTbox.hide();
});
$("#" + textbox_id).change(
function () {
$("#" + option_id).val($("#" + textbox_id).val());
});
};
}(jQuery));
So you apply this to the below html:
<form>
<select id="otherize_me">
<option value=1>option 1</option>
<option value=2>option 2</option>
<option value=3>option 3</option>
</select>
</form>
Just like this:
$(function () {
$("#otherize_me").otherize("other..", "put new option vallue here");
});
Yes, you would have to change the window.location.href to the url of the file you would want to download.
window.location.href = 'http://www.com/path/to/file';
I posted an answer to this already when someone else asked the same question (see How to bring back "Browser mode" in IE11?).
Read my answer there for a fuller explaination, but in short:
They removed it deliberately, because compat mode is not actually really very good for testing compatibility.
If you really want to test for compatibility with any given version of IE, you need to test in a real copy of that IE version. MS provide free VMs on http://modern.ie/ for you to use for this purpose.
The only way to get compat mode in IE11 is to set the X-UA-Compatible
header. When you have this and the site defaults to compat mode, you will be able to set the mode in dev tools, but only between edge or the specified compat mode; other modes will still not be available.
I still go with the uppercase for const values, but this is more out of habit than for any particular reason.
Of course it makes it easy to see immediately that something is a const. The question to me is: Do we really need this information? Does it help us in any way to avoid errors? If I assign a value to the const, the compiler will tell me I did something dumb.
My conclusion: Go with the camel casing. Maybe I will change my style too ;-)
Edit:
That something smells hungarian is not really a valid argument, IMO. The question should always be: Does it help, or does it hurt?
There are cases when hungarian helps. Not that many nowadays, but they still exist.
Pike's notion of "concurrency" is an intentional design and implementation decision. A concurrent-capable program design may or may not exhibit behavioral "parallelism"; it depends upon the runtime environment.
You don't want parallelism exhibited by a program that wasn't designed for concurrency. :-) But to the extent that it's a net gain for the relevant factors (power consumption, performance, etc.), you want a maximally-concurrent design so that the host system can parallelize its execution when possible.
Pike's Go programming language illustrates this in the extreme: his functions are all threads that can run correctly concurrently, i.e. calling a function always creates a thread that will run in parallel with the caller if the system is capable of it. An application with hundreds or even thousands of threads is perfectly ordinary in his world. (I'm no Go expert, that's just my take on it.)
This compiles fine on gcc version 4.3.3 (Ubuntu 4.3.3-5ubuntu4).
const char s[] = "cheese";
int main()
{
return 0;
}
Try this for range of cells:
$from = "A1"; // or any value
$to = "B5"; // or any value
$objPHPExcel->getActiveSheet()->getStyle("$from:$to")->getFont()->setBold( true );
or single cell
$cell_name = "A1";
$objPHPExcel->getActiveSheet()->getStyle( $cell_name )->getFont()->setBold( true );
hope that helps
I also got the same error when using ajax with a textbox then i solve it by remove class select2 of textbox and setup select2 by id like:
$(function(){
$("#input-select2").select2();
});
Probably something like this:
original_list = dictionary.get('C1')
new_list = []
for item in original_list:
new_list.append(item+10)
dictionary['C1'] = new_list
Simple solution to achieve "split in two" background:
background: linear-gradient(to left, #ff0000 50%, #0000ff 50%);
You can also use degrees as direction
background: linear-gradient(80deg, #ff0000 50%, #0000ff 50%);
I didn't find exactly what I wanted from the existing answers. The code below will highlight all trailing spaces bright red. Simply add the following to your .vimrc
highlight ExtraWhitespace ctermbg=red guibg=red
match ExtraWhitespace /\s\+$/
autocmd BufWinEnter * match ExtraWhitespace /\s\+$/
autocmd InsertEnter * match ExtraWhitespace /\s\+\%#\@<!$/
autocmd InsertLeave * match ExtraWhitespace /\s\+$/
autocmd BufWinLeave * call clearmatches()
From the Node.js documentation:
Node provides a tri-directional popen(3) facility through the ChildProcess class.
Yes, the first one is a static method
also called class method
, while the second one is an instance method
.
Consider the following examples, to understand it in more detail.
In ES5
function Person(firstName, lastName) {
this.firstName = firstName;
this.lastName = lastName;
}
Person.isPerson = function(obj) {
return obj.constructor === Person;
}
Person.prototype.sayHi = function() {
return "Hi " + this.firstName;
}
In the above code, isPerson
is a static method, while sayHi
is an instance method of Person
.
Below, is how to create an object from Person
constructor.
var aminu = new Person("Aminu", "Abubakar");
Using the static method isPerson
.
Person.isPerson(aminu); // will return true
Using the instance method sayHi
.
aminu.sayHi(); // will return "Hi Aminu"
In ES6
class Person {
constructor(firstName, lastName) {
this.firstName = firstName;
this.lastName = lastName;
}
static isPerson(obj) {
return obj.constructor === Person;
}
sayHi() {
return `Hi ${this.firstName}`;
}
}
Look at how static
keyword was used to declare the static method isPerson
.
To create an object of Person
class.
const aminu = new Person("Aminu", "Abubakar");
Using the static method isPerson
.
Person.isPerson(aminu); // will return true
Using the instance method sayHi
.
aminu.sayHi(); // will return "Hi Aminu"
NOTE: Both examples are essentially the same, JavaScript remains a classless language. The class
introduced in ES6 is primarily a syntactical sugar over the existing prototype-based inheritance model.
This may be extending beyond your question, however if you're concerned about the length of time processes are running for, you may be interested in checking the status of running background processes after an interval of time. It's easy enough to check which child PIDs are still running using pgrep -P $$
, however I came up with the following solution to check the exit status of those PIDs that have already expired:
cmd1() { sleep 5; exit 24; }
cmd2() { sleep 10; exit 0; }
pids=()
cmd1 & pids+=("$!")
cmd2 & pids+=("$!")
lasttimeout=0
for timeout in 2 7 11; do
echo -n "interval-$timeout: "
sleep $((timeout-lasttimeout))
# you can only wait on a pid once
remainingpids=()
for pid in ${pids[*]}; do
if ! ps -p $pid >/dev/null ; then
wait $pid
echo -n "pid-$pid:exited($?); "
else
echo -n "pid-$pid:running; "
remainingpids+=("$pid")
fi
done
pids=( ${remainingpids[*]} )
lasttimeout=$timeout
echo
done
which outputs:
interval-2: pid-28083:running; pid-28084:running;
interval-7: pid-28083:exited(24); pid-28084:running;
interval-11: pid-28084:exited(0);
Note: You could change $pids
to a string variable rather than array to simplify things if you like.
We can do this using JavaScript, no need of jQuery. Just pass the changed element and let JavaScript handle it.
HTML
<form id="myform">
syn<input type="checkbox" name="checkfield" id="g01-01" onchange="doalert(this)"/>
</form>
JS
function doalert(checkboxElem) {
if (checkboxElem.checked) {
alert ("hi");
} else {
alert ("bye");
}
}
If there is no patch number, ~
is equivalent to appending .x
to the non-tilde version. If there is a patch number, ~
allows all patch numbers >= the specified one.
~1 := 1.x
~1.2 := 1.2.x
~1.2.3 := (>=1.2.3 <1.3.0)
I don't have enough points to comment on the accepted answer, but some of the tilde information is at odds with the linked semver documentation: "angular": "~1.2"
will not match 1.3, 1.4, 1.4.9. Also "angular": "~1"
and "angular": "~1.0"
are not equivalent. This can be verified with the npm semver calculator.
using python format string syntax
>>> mybyte = bytes.fromhex("0F") # create my byte using a hex string
>>> binary_string = "{:08b}".format(int(mybyte.hex(),16))
>>> print(binary_string)
00001111
The second line is where the magic happens. All byte objects have a .hex()
function, which returns a hex string. Using this hex string, we convert it to an integer, telling the int()
function that it's a base 16 string (because hex is base 16). Then we apply formatting to that integer so it displays as a binary string. The {:08b}
is where the real magic happens. It is using the Format Specification Mini-Language format_spec
. Specifically it's using the width
and the type
parts of the format_spec syntax. The 8
sets width
to 8, which is how we get the nice 0000 padding, and the b
sets the type to binary.
I prefer this method over the bin()
method because using a format string gives a lot more flexibility.
There are many ways, for example:
Method one:
public string test()
{
string ErrMsg = string.Empty;
try
{
int num = int.Parse("gagw");
}
catch (Exception ex)
{
ErrMsg = ex.Message;
}
return ErrMsg
}
Method two:
public void test(ref string ErrMsg )
{
ErrMsg = string.Empty;
try
{
int num = int.Parse("gagw");
}
catch (Exception ex)
{
ErrMsg = ex.Message;
}
}
You are getting the two thinks mixed.
You have "react-cookie" and "axios"
react-cookie => is for handling the cookie on the client side
axios => is for sending ajax requests to the server
With that info, if you want the cookies from the client side to be communicated in the backend side as well, you will need to connect them together.
Note from "react-cookie" Readme:
Isomorphic cookies!
To be able to access user cookies while doing server-rendering, you can use plugToRequest or setRawCookie.
If this is what you need, great.
If not, please comment so I could elaborate more.
If your terminal supports ANSI escape codes, this clears the screen and moves the cursor to the first row, first column:
System.out.print("\033[H\033[2J");
System.out.flush();
This works on almost all UNIX terminals and terminal emulators. The Windows cmd.exe
does not interprete ANSI escape codes.
If you use random
instead of * random
your code not give any error
In Pandas version 1.10 and above you can use parameters xlabel
and ylabel
in the method plot
:
df.plot(xlabel='X Label', ylabel='Y Label', title='Plot Title')
The
||
operator is "concatenate" - it joins together the two strings of its operands.
From http://www.sqlite.org/lang_expr.html
For padding, the seemingly-cheater way I've used is to start with your target string, say '0000', concatenate '0000423', then substr(result, -4, 4) for '0423'.
Update: Looks like there is no native implementation of "lpad" or "rpad" in SQLite, but you can follow along (basically what I proposed) here: http://verysimple.com/2010/01/12/sqlite-lpad-rpad-function/
-- the statement below is almost the same as
-- select lpad(mycolumn,'0',10) from mytable
select substr('0000000000' || mycolumn, -10, 10) from mytable
-- the statement below is almost the same as
-- select rpad(mycolumn,'0',10) from mytable
select substr(mycolumn || '0000000000', 1, 10) from mytable
Here's how it looks:
SELECT col1 || '-' || substr('00'||col2, -2, 2) || '-' || substr('0000'||col3, -4, 4)
it yields
"A-01-0001"
"A-01-0002"
"A-12-0002"
"C-13-0002"
"B-11-0002"
As of today, most promising answer seems to be of @murat I tested it myself on Firefox but as others suggested in comments, it still asks for password the first time. Then it doesn't afterwards no matter how many times you re-enter password(submitting using Ajax in my case). If the page is reloaded, above behaviour is repeated.
I thought banking sites must be having such functionalities so I checked onlinesbi.com and it does it perfectly.! It doesn't ask to store password ever, in any browser. I tried to check the source but couldn't figure out, it's using some combination of hidden elements plus autocomplete and js. I couldn't figure it out but there are plenty on this platform and hoping someone definitely would figure out and post it here.
Focus doesn't work on divs by default. But, according to this, you can make it work:
The focus event is sent to an element when it gains focus. This event is implicitly applicable to a limited set of elements, such as form elements (
<input>
,<select>
, etc.) and links (<a href>
). In recent browser versions, the event can be extended to include all element types by explicitly setting the element's tabindex property. An element can gain focus via keyboard commands, such as the Tab key, or by mouse clicks on the element.
I ended up adding a category to UIView for this:
#import "UIViewNibLoading.h"
@implementation UIView (UIViewNibLoading)
+ (id) loadNibNamed:(NSString *) nibName {
return [UIView loadNibNamed:nibName fromBundle:[NSBundle mainBundle] retainingObjectWithTag:1];
}
+ (id) loadNibNamed:(NSString *) nibName fromBundle:(NSBundle *) bundle retainingObjectWithTag:(NSUInteger) tag {
NSArray * nib = [bundle loadNibNamed:nibName owner:nil options:nil];
if(!nib) return nil;
UIView * target = nil;
for(UIView * view in nib) {
if(view.tag == tag) {
target = [view retain];
break;
}
}
if(target && [target respondsToSelector:@selector(viewDidLoad)]) {
[target performSelector:@selector(viewDidLoad)];
}
return [target autorelease];
}
@end
explanation here: viewcontroller is less view loading in ios&mac
You Can use this -
Suppose we have a list, l = [1,2,3,4,5]
We want to delete last two items in a single statement
del l[3:]
We have output:
l = [1,2,3]
Keep it Simple
Did you try?
protect_from_forgery with: :null_session, if: Proc.new {|c| c.request.format.json? }
It would be something like this
function CustomInputBox([string] $title, [string] $message, [string] $defaultText)
{
$inputObject = new-object -comobject MSScriptControl.ScriptControl
$inputObject.language = "vbscript"
$inputObject.addcode("function getInput() getInput = inputbox(`"$message`",`"$title`" , `"$defaultText`") end function" )
$_userInput = $inputObject.eval("getInput")
return $_userInput
}
Then you can call the function similar to this.
$userInput = CustomInputBox "User Name" "Please enter your name." ""
if ( $userInput -ne $null )
{
echo "Input was [$userInput]"
}
else
{
echo "User cancelled the form!"
}
This is the most simple way to do this that I can think of.
You might also consider adding the exception type you want to retry for. For instance is this a timeout exception you want to retry? A database exception?
RetryForExcpetionType(DoSomething, typeof(TimeoutException), 5, 1000);
public static void RetryForExcpetionType(Action action, Type retryOnExceptionType, int numRetries, int retryTimeout)
{
if (action == null)
throw new ArgumentNullException("action");
if (retryOnExceptionType == null)
throw new ArgumentNullException("retryOnExceptionType");
while (true)
{
try
{
action();
return;
}
catch(Exception e)
{
if (--numRetries <= 0 || !retryOnExceptionType.IsAssignableFrom(e.GetType()))
throw;
if (retryTimeout > 0)
System.Threading.Thread.Sleep(retryTimeout);
}
}
}
You might also note that all of the other examples have a similar issue with testing for retries == 0 and either retry infinity or fail to raise exceptions when given a negative value. Also Sleep(-1000) will fail in the catch blocks above. Depends on how 'silly' you expect people to be but defensive programming never hurts.
May be easier using a java.util.HashSet. For example:
List <String> list = new ArrayList<String>();
list.add("behold");
list.add("bend");
list.add("bet");
//Load the list into a hashSet
Set<String> set = new HashSet<String>(list);
if (set.contains("bend"))
{
System.out.println("String found!");
}
As of jQuery 1.7, the .live()
method is deprecated. Use .on()
to attach event handlers.
Example -
$( document ).on( events, selector, data, handler );