大约有 982 项符合查询结果（耗时：0.0128秒） [XML]
How to var_dump variables in twig templates?
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As of Twig 1.5, the correct answer is to use the dump function. It is fully documented in the Twig documentation. Here is the documentation to enable this inside Symfony2.
{{ dump(user) }}
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getting the screen density programmatically in android?
...tDisplayMetrics().density;
This will give you:
0.75 - ldpi
1.0 - mdpi
1.5 - hdpi
2.0 - xhdpi
3.0 - xxhdpi
4.0 - xxxhdpi
ref: density
ref 2
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Lightweight Javascript DB for use in Node.js [closed]
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I don't understand why latest commit 1.5 years ago means the project is abandoned. It absolutely isn't, it just achieved its goal and I don't see any value in feature-creep ...
– Louis Chatriot
Jan 24 '18 at 12:33
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Android on-screen keyboard auto popping up
... keyboard will not appear.
Have you tried testing this by running Android 1.5 in the emulator?
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What's the function like sum() but for multiplication? product()?
...arithms:
>>> from math import log, exp
>>> data = [1.2, 1.5, 2.5, 0.9, 14.2, 3.8]
>>> exp(sum(map(log, data)))
218.53799999999993
>>> 1.2 * 1.5 * 2.5 * 0.9 * 14.2 * 3.8
218.53799999999998
Note, the use of log() requires that all the inputs are positive.
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Read an Excel file directly from a R script
...normally distributed numeric
num1 = round(exp(rnorm(NN, mean = 6.5, sd = 1.5)), 2L),
#3 binary strings
str6 = sample(c("Y","N"), NN, TRUE),
str7 = sample(c("M","F"), NN, TRUE),
str8 = sample(c("B","W"), NN, TRUE),
#right-skewed integer
int1 = ceiling(rexp(NN)),
#dates by month
dat1...
jQuery trigger file input
...0px;
font-size: 100px;
z-index: 2;
opacity: 0.0; /* Standard: FF gt 1.5, Opera, Safari */
filter: alpha(opacity=0); /* IE lt 8 */
-ms-filter: "alpha(opacity=0)"; /* IE 8 */
-khtml-opacity: 0.0; /* Safari 1.x */
-moz-opacity: 0.0; /* FF lt 1.5, Netscape */
}
JavaScript:
$(document)....
Using jQuery to test if an input has focus
... no longer need to add it ourselves. Just use $("..").is(":focus")
jQuery 1.5 and below
Edit: As times change, we find better methods for testing focus, the new favorite is this gist from Ben Alman:
jQuery.expr[':'].focus = function( elem ) {
return elem === document.activeElement && ( ...
How to force R to use a specified factor level as reference in a regression?
...3)
x <- rnorm(100)
DF <- data.frame(x = x,
y = 4 + (1.5*x) + rnorm(100, sd = 2),
b = gl(5, 20))
head(DF)
str(DF)
m1 <- lm(y ~ x + b, data = DF)
summary(m1)
Now alter the factor b in DF by use of the relevel() function:
DF <- within(DF, b <- releve...
Should I use string.isEmpty() or “”.equals(string)?
...roduced in 1.6, so if you use it you won't be able to run the code on Java 1.5 or below.
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