It is well known that null and undefined are unique in Javascript. However the following behavior was not known to me and hence the post. Basically null is coerced to 0 when using >, <, >=, <= operators but not when == operator is used. Quirky at its best :)
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| var counter = null; | |
| var something = false; | |
| if(something) { | |
| counter += 1; | |
| } | |
| if(counter == 0) { | |
| console.log("failed to update"); | |
| } | |
| if(counter <= 0) { | |
| console.log("print again the failure"); | |
| } | |
| // if something is true this will be printed | |
| if(counter > 0) { | |
| console.log("successfully updated"); | |
| } |
