JS variable comparison Trap

We think that JS is simple because it is a weak type of language, not as sensitive to the type as Java, but JS also has its unsatisfactory place.

In Java we can not directly compare numbers with strings, and JS can, and can be directly converted to a numerical comparison, but if the string for >, < and other comparisons, unexpectedly is compared to its first character encoding.

And we are in the programming because the numeric value and the character comparison will turn into the numerical comparison, often will be directly with the <, the > comparison, who knows oneself to get two variables are the string type, this is awkward, also has the first judgment type then carries on the logic code, estimates this is also the weak type disadvantage.

JS variable comparison Trap