can we declare key strings as final variables in javascript/nodejs

Question

I come from world of java but have been working in nodejs + angularjs for my current project. I have some "key Strings" which are frequently used at many places both in client and server side.

In java it is practice to declare all key strings as final variables and use through the final variables so as to avoid typing mistake while using them. Is there any similar concept in javascript?

public static final String KEY_WORD = "frequently used string"    
public static final String KEY_WORD2 = "another frequently used string"

score 3 · Accepted Answer · answered Jan 15 '15 at 13:13

3

ECMAScript 6 introduces constants though the const keyword, but browser support is limited.

const KEY_WORD =  "frequently used word";

answered Jan 15 '15 at 13:13

Quentin

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is it supported in nodejs? – raju Jan 15 '15 at 13:18
1

`node -e "const a = 1; a = 2; console.log(a);"` gives `1`, so yes. – Quentin Jan 15 '15 at 13:19

can we declare key strings as final variables in javascript/nodejs

1 Answers1