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Array.prototype.map = function(fun, ctx) { if (Object.prototype.toString.call(fun) !== '[object Function]') { throw new Error(${fun} is not function) } const arr = [] for (let i= 0; i<this.length; i++) { arr.push(fun.call(ctx, this[i], i)) } return arr }
${fun} is not function
The text was updated successfully, but these errors were encountered:
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Array.prototype.map = function(fun, ctx) {
if (Object.prototype.toString.call(fun) !== '[object Function]') {
throw new Error(
${fun} is not function)}
const arr = []
for (let i= 0; i<this.length; i++) {
arr.push(fun.call(ctx, this[i], i))
}
return arr
}
The text was updated successfully, but these errors were encountered: