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iteration2.js
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iteration2.js
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const myobject = {
js: 'javascript',
cpp: 'c++',
rb: 'ruby',
}
for (const key in myobject) {
console.log(`${key} shortcut is for ${myobject[key]}`);
}
const program = ["js","cpp","rb","py"]
for (const key in program) {
console.log(key);
console.log(program[key]);
}
// jab for in loop lagate hain array par aur key print karte hai to indexes print hote hain jo 0 se start hote hai
// map ko for in se iterate nahi karsakte hai
// for each loop
const coding = ["js","python","c++"]
// coding.forEach( function (val){
// console.log(val);
// })
coding.forEach( (item) => {
console.log(item);
})
function printme(item){
console.log(item);
}
coding.forEach(printme)
coding.forEach( (item,index,arr) => {
console.log(item,index,arr);
})
// array of objects
const mycoding = [
{
name:"javascript",
file: "js"
},
{
name:"java",
file: "java"
},
{
name:"python",
file: "py"
},
]
mycoding.forEach( (item) =>{
console.log(item.name);
console.log(item.file);
})