For e.g if the array looks like this I want to get the 2nd value of each array inside example array e.g values like this: Answer You can use .map() to construct the desired output. You must be careful about the index however i.e data in that index should exists in the input array otherwise you will get undefined.
Tag: dictionary
How to filter by id?
I want to filter stories by ids. I have tried to use .filter method but it is showing me empty array [] Answer You have a few issues: You’re using .story_id when your object is using id You’re trying to check if a number is equal to the array id, this won’t work. Instead, you can use .includes() method on
How to exclude keys from a map and display only the values?
I have an Object obj as below: I want to exclude the key Hostname and it value. I only want to capture the values excluding keys such that the output looks as below: 189883:error message:script name The final output should be a string. I have written the following code but it is creating array element for every letter Answer Use
How to add titles on leaflet’s layer control selection using react?
I am using Leaflet JS with Bing map. I need to add titles on top of Type 1 Layer and Category 1 overlays selection, displayed on right top of Map. I could not see any documentation for the same. Can someone help me. My layers are, Base Layers: Default and English Overlays: Type 1 Layer, Type 2 Layer, Category 1,
How to map key/value pairs of a “map” in JavaScript?
How to map key/value pairs of a “map” in JavaScript: I need to get an mapper containing key/value pair on each iteration: Answer This is not a Map object. It’s just a regular object. So, use Object.entries and then use map on the key value pair: Object.entries returns: Then loop through each of those inner arrays and create the string
javascript function returning day of week x num of days later
What I am trying to write is a simple function that takes in a day (D), X number of days and returns the day X days later. Days can be represented by (‘Mon’, ‘Tue’, ‘Wed’, ‘Thu’,’Fri’,’Sat’,’Sun’). X can be any int 0 and up. For Example D=’Wed’, X=’2′, return ‘Fri’, D=’Sat’ and X=’5′, returns ‘Wed’. How do I do this
Map default value
I’m looking for something like default value for Map. Now the result is Undefined but I want to get empty array []. Answer First of all to answer the question regarding the standard Map: Javascript Map as proposed in ECMAScript 2015 does not include a setter for default values. This, however, does not restrain you from implementing the function yourself.
how to increase width of svg path in css or inline
i have map svg of time zone but the size of time zone location is very small I want to increase the size of every time zone location width minimum 400px; height minimum 300px; here is a SVG code its some part of code here is the current size of every time zone location it is very little size how
Leaflet custom url custom tiles
I am working on a custom map with leaflet. So far everything worked fine, but unfortunately the program I am using to split my image into tiles dont start the count with 0 but instead with 1, so my tiles start with “1_1.jpg” and so my whole map is shifted by one tile on y- and x-axis. To rename the
How to iterate (keys, values) in JavaScript? [duplicate]
This question already has answers here: How do I loop through or enumerate a JavaScript object? (48 answers) Closed 12 months ago. I have a dictionary that has the format of How can I iterate through this dictionary by doing something like Answer tl;dr In ECMAScript 2017, just call Object.entries(yourObj). In ECMAScript 2015, it is possible with Maps. In ECMAScript