What is the difference between .text, .value, and .value2?
2013年6月28日 · If you are locating errors then .Text will return something like #N/A as text and can be compared to a string while .Value and .Value2 will choke comparing their returned value to a string. If you have some custom cell formatting applied to your data then .Text may be the better choice when building a report.
How do I get the value of text input field using JavaScript?
2012年7月19日 · There are various methods to get an input textbox value directly (without wrapping the input element inside a form element): Method 1. document.getElementById('textbox_id').value to get the value of desired box. For example. document.getElementById("searchTxt").value;
python - Get key by value in dictionary - Stack Overflow
If you dereference a dict, you expect to get exactly one value returned. But, it is perfectly legal for different keys to map onto the same value, e.g.: d = { k1 : v1, k2 : v2, k3 : v1} When you look up a key by it's corresponding value, you're essentially inverting the dictionary. But a mapping isn't necessarily invertible!
Is there a simple way to delete a list element by value?
2010年5月8日 · arr = [1, 1, 3, 4, 5, 2, 4, 3] # to remove first occurence of that element, suppose 3 in this example arr.remove(3) # to remove all occurences of that element, again suppose 3 # use something called list comprehension new_arr = [element for element in arr if element!=3] # if you want to delete a position use "pop" function, suppose # position 4 # the pop function also …
Get selected value/text from Select on change - Stack Overflow
2011年3月24日 · function handleSelectChange(event) { // if you want to support some really old IEs, add // event = event || window.event; var selectElement = event.target; var value = selectElement.value; // to support really old browsers, you may use // selectElement.value || selectElement.options[selectElement.selectedIndex].value; // like el Dude has ...
python - How do I sort a dictionary by value? - Stack Overflow
2009年3月5日 · @Nas Banov: it is NOT sorting by the key. it is sorting in the order, we create the items. in our case, we sort by the value. unfortunately, the 3-item dict was unfortunately chosen so the order was the same, when sorted voth by value and key, so i expanded the sample dict.
What does $_ mean in PowerShell? - Stack Overflow
2016年2月1日 · In this case the $_ represents the item being piped but multiple expressions can exist. It can also be referenced by custom parameter validation, where a script block is used to validate a value. In this case the $_ represents the parameter value as received from the invocation. The closest analogy to c# and java is the lamda expression.
Spring @Value is not resolving to value from property file
2014年11月27日 · 5. @Value sometimes can take a day or a half to get resolved ;). Here is what I did : Add property to properties or YAML file. Make Sure MAIN CLASS IS ANNOTATED WITH @EnableAutoConfiguration OR @SpringBootApplication. CREATE AppConfig IN WHICH YOU CAN USE @Value. @Value ("$ {PROPERTY}") private String URL;
How can I get a value from a cell of a dataframe? - Stack Overflow
2013年5月24日 · 7. If a single row was filtered from a dataframe, one way to get a scalar value from a single cell is squeeze() (or item()): In fact, item() may be called on the index, so item + at combo could work. In fact, the latter method is much faster than any other method listed here to get a single cell value.
forms - What's the proper value for a checked attribute of an …
2011年10月21日 · The presence of a boolean attribute on an element represents the true value, and the absence of the attribute represents the false value. If the attribute is present, its value must either be the empty string or a value that is an ASCII case-insensitive match for the attribute's canonical name, with no leading or trailing whitespace. Conclusion: