how to get numbers from a string in java script : I have a variable which it contains a telephone number in a sentence, to know it better  it is like this `"tel1": "Tél: 01.78.99.93.06",` now I need to get just numbers and put in another variable the out put should be like this `var nom="0178999306"` how I can do it with jquery and java script?

Appreciate very much 