string contains word javascript code example
Example 1: javascript check if character exists in string
"FooBar".includes("oo");
"FooBar".includes("foo");
"FooBar".includes("oo", 2);
~"FooBar".indexOf("oo");
~"FooBar".indexOf("foo");
~"FooBar".indexOf("oo", 2);
!!~"FooBar".indexOf("oo");
!!~"FooBar".indexOf("foo");
!!~"FooBar".indexOf("oo", 2);
Example 2: javascript contains substring
var str = "We got a poop cleanup on isle 4.";
if(str.indexOf("poop") !== -1){
alert("Not again");
}
Example 3: javascript string contains
var string = "foo",
var substring = "oo";
console.log(string.includes(substring));