每个javascript获得的索引
代码示例
N
var colors = ['red', 'blue', 'green'];
colors.forEach(function(color) {
console.log(color);
});N
users.forEach((user, index)=>{
console.log(index); // Prints the index at which the loop is currently at
});N
var myArray = [123, 15, 187, 32];
myArray.forEach(function (value, i) {
console.log('%d: %s', i, value);
});
// Outputs:
// 0: 123
// 1: 15
// 2: 187
// 3: 32
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