我想把简单的python代码转换成JavaScript。在JavaScript中,我注意到for循环是基于C和C++语法的,因此
for( INITIALIZE; BOOLEAN EXPRESSION; ACTION)
{
STATEMENT;
STATEMENT;
}
我有一个简单的代码(只计算字符串中的字符),我想转换成JavaScript
def countLetter(word, letter):
count = 0
for character in word:
if letter == character:
count = count + 1
return count
在JavaScript中
function countLetter(word, letter) {
for (var characters in word){...}
尝试:
in
运算符在JavaScript中的行为不同。你知道吗https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/charAt
您还可以在javascript中使用
substr
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