I need to monitor results . If the results.length increases, the array will be overwritten and saved. If the length decreases, then the array will be overwritten, but the new value won’t save. Answer I found de wae!
Tag: slice
How to get first N number of elements from an array
I am working with Javascript(ES6) /FaceBook react and trying to get the first 3 elements of an array that varies in size. I would like do the equivalent of Linq take(n). In my Jsx file I have the following: Then to get the first 3 items I tried This didn’t work as map doesn’t have a set function. …
Fastest way to duplicate an array in JavaScript – slice vs. ‘for’ loop
In order to duplicate an array in JavaScript: Which of the following is faster to use? Slice method For loop I know both ways do only a shallow copy: if original_array contains references to objects, objects won’t be cloned, but only the references will be copied, and therefore both arrays will have ref…
How do I chop/slice/trim off last character in string using Javascript?
I have a string, 12345.00, and I would like it to return 12345.0. I have looked at trim, but it looks like it is only trimming whitespace and slice which I don’t see how this would work. Any suggestions? Answer You can use the substring function: This is the accepted answer, but as per the conversations…