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Javascript: How to check if a string is empty? [duplicate]
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If value is really a string, then this is correct, but it will also return true, if value = false or 0 or null. use === instead.
– Residuum
Mar 4 '10 at 17:43
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JavaScript validation for empty input field
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Add an id "question" to your input element and then try this:
if( document.getElementById('question').value === '' ){
alert('empty');
}
The reason your current code doesn't work is because you don't have a FORM tag in there. Also, lookup using "name" is no...
Excluding directory when creating a .tar.gz file
...p.tar.gz --exclude "/home/user/public_html/tmp/" /home/user/public_html/
Then it worked.
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Move layouts up when soft keyboard is shown?
...PUT_STATE_VISIBLE|WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE);
Then place your whole view in "Scrollview" in XML file like :
<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
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Shell script while read line loop stops after the first line
...re often?"
process_response_pgm
EOF
if [ ${PIPESTATUS[0]} -ne 0 ] ; then
echo "aborting loop"
exit ${PIPESTATUS[0]}
fi
done << input_list.txt
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How to activate “Share” button in android app?
...s>
now go to the manifests folder and open the AndroidManifest.xml and then put the below code inside the <application> tag :
<provider
android:name="androidx.core.content.FileProvider"
android:authorities="${applicationId}.provider"
android:exported="false"
android:grantUriPermissions=...
RVM is not a function, selecting rubies with 'rvm use …' will not work
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Type bash --login from your terminal. And then give rvm use 2.0.0
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Python's most efficient way to choose longest string in list?
...x_length,longest_element = max([(len(x),x) for x in ('a','b','aa')])
And then regular foreach
for st in mylist:
if len(st)==max_length:...
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Color text in terminal applications in UNIX [duplicate]
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@Schroeder #define RESET "\033[0m", and then printf(KMAG "magenta RESET \n");
– mf_
Jan 7 '14 at 19:41
2
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Django dump data for a single model?
...he model but point it to the existing table with the db_table meta option. Then you could just dump the models you copied into the new app. You existing app wouldn't be affected.
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