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I was developing a code javascript and I saw that the compiler accused error in the equality that I did at that time, but there was no error in the execution.
I would like to know the difference of equality "==" and "==" javascript?
1 answer
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In javascript:
== does not take the type of the variable into account, whereas the
=== takes the type of variable into account
See some examples:
var verdadeiro = '1' == 1;
var falso = '1' === 1;
var var1 = 'true' == true; // false
var var2 = '0' == false; // true
var var3 = null == undefined; // true
var var4 = false == null; // false
var var5 = null == 0; // false
var var6 = '' == 0; // true
var var7 = '\t\n' == 0; // true
var var8 = '1' == true; // true
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@Victor check this post, has information that describes well the difference between "==", "===" and Object.is https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Igualdade ---------------------------- "=": equal to; "===" : equal value and type; x === 5 true x === "5" false
– henrique.marques
Duplicate https://answall.com/questions/280978/os-operatorss-e-podem-considerador-de-l%C3%B3gica-difusa
– hugocsl