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SQL: How to get the count of each distinct value in a column?
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SELECT
category,
COUNT(*) AS `num`
FROM
posts
GROUP BY
category
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Hide keyboard when scroll UITableView
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You can do this right in Interface Builder. Select your UITableView and open the Attributes Inspector. In the Scroll View section set the Keyboard field to Dismiss on Drag.
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Is it possible to clone html element objects in JavaScript / JQuery?
...od:
// Create a clone of element with id ddl_1:
let clone = document.querySelector('#ddl_1').cloneNode( true );
// Change the id attribute of the newly created element:
clone.setAttribute( 'id', newId );
// Append the newly created element on element p
document.querySelector('p').appendChild( cl...
Rails: How to change the title of a page?
...In rails 3 content_for is smart enough to work correctly with caching (see selected answer).
– opsb
Nov 15 '11 at 10:41
4
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NumberPicker 扩展：滑动选择数字，自定义样式 · App Inventor 2 中文网
...显示。可以选择显示在该组件的上方或下方。
SaveSelectedValue保存当前选中值()
保存当前选中的值。
RestoreSavedValue恢复已保存值()
恢复之前保存的值。
GetSelectedValue获取当前选中值()
获取当前选中的值。
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Filter by process/PID in Wireshark
...he first time I downloaded wireshark, it showed process tree and you could select a process to monitor. Dunno when this option dissapeared, but it was there.
– Tomáš Zato - Reinstate Monica
May 30 '18 at 14:29
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PHP UML Generator [closed]
... I noticed that too! If you click the link, it gives you a 404, but if you select the address bar and press enter, it works.
– nickf
Jan 16 '10 at 14:01
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Rails Migration: Remove constraint
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This should be the selected answer
– nahtnam
Aug 9 '19 at 17:50
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XMLHttpRequest Origin null is not allowed Access-Control-Allow-Origin for file:/// to file:/// (Serv
... // Database test code from the sql.js project
var test = sqldb.exec("SELECT * FROM Genre");
document.getElementById("test").textContent = JSON.stringify(test);
</script>
I imagine it would be trivial to modify this to read JSON, maybe even XML; I'll leave that as an exercise for th...
How to call a function from a string stored in a variable?
...wanted to have the same code be able to call lighten or darken rather than select it out with logic. This may be the result of my stubbornness to not just use if-else or to change the code calling this method.
$lightdark="lighten"; // or optionally can be darken
$color="fcc"; // a hex color
$perc...