Check if a String startsWith() and isn't equal to another String
I wanna know if a String (for example: "Hello World!") starts with "Hello" and isn't equal to "Hello Wourld" but I don't know how to make it. I tried:
if(String.startsWith("Hello") && (String !== "Hello Wourld")) {
// Do something
}
But it doesn't work. Can someone help me?
Thanks
javascript string startswith
asked Nov 23 '18 at 17:02
demostanisdemostanis
166
add a comment |
I wanna know if a String (for example: "Hello World!") starts with "Hello" and isn't equal to "Hello Wourld" but I don't know how to make it. I tried:
if(String.startsWith("Hello") && (String !== "Hello Wourld")) {
// Do something
}
But it doesn't work. Can someone help me?
Thanks
javascript string startswith
asked Nov 23 '18 at 17:02
demostanisdemostanis
166
3
jsfiddle.net/toc02re1 works for me
– apokryfos
Nov 23 '18 at 17:05
Works on browser as well
– Monica Acha
Nov 23 '18 at 17:06
1
May be your browser doesn't have the 'startsWith' function (IE 11 doesn't).
– Poul Bak
Nov 23 '18 at 17:07
3
Stringis a reserved native constructor for strings,. try and avoid creating a var named this way.
– Keith
Nov 23 '18 at 17:13
add a comment |
I wanna know if a String (for example: "Hello World!") starts with "Hello" and isn't equal to "Hello Wourld" but I don't know how to make it. I tried:
if(String.startsWith("Hello") && (String !== "Hello Wourld")) {
// Do something
}
But it doesn't work. Can someone help me?
Thanks
javascript string startswith
asked Nov 23 '18 at 17:02
demostanisdemostanis
166
I wanna know if a String (for example: "Hello World!") starts with "Hello" and isn't equal to "Hello Wourld" but I don't know how to make it. I tried:
if(String.startsWith("Hello") && (String !== "Hello Wourld")) {
// Do something
}
But it doesn't work. Can someone help me?
Thanks
javascript string startswith
javascript string startswith
asked Nov 23 '18 at 17:02
demostanisdemostanis
166
asked Nov 23 '18 at 17:02
demostanisdemostanis
166
asked Nov 23 '18 at 17:02
demostanisdemostanis
166
asked Nov 23 '18 at 17:02
demostanisdemostanis
166
asked Nov 23 '18 at 17:02
demostanisdemostanis
166
166
3
jsfiddle.net/toc02re1 works for me
– apokryfos
Nov 23 '18 at 17:05
Works on browser as well
– Monica Acha
Nov 23 '18 at 17:06
1
May be your browser doesn't have the 'startsWith' function (IE 11 doesn't).
– Poul Bak
Nov 23 '18 at 17:07
3
Stringis a reserved native constructor for strings,. try and avoid creating a var named this way.
– Keith
Nov 23 '18 at 17:13
add a comment |
3
jsfiddle.net/toc02re1 works for me
– apokryfos
Nov 23 '18 at 17:05
Works on browser as well
– Monica Acha
Nov 23 '18 at 17:06
1
May be your browser doesn't have the 'startsWith' function (IE 11 doesn't).
– Poul Bak
Nov 23 '18 at 17:07
3
Stringis a reserved native constructor for strings,. try and avoid creating a var named this way.
– Keith
Nov 23 '18 at 17:13
3
3
jsfiddle.net/toc02re1 works for me
– apokryfos
Nov 23 '18 at 17:05
jsfiddle.net/toc02re1 works for me
– apokryfos
Nov 23 '18 at 17:05
Works on browser as well
– Monica Acha
Nov 23 '18 at 17:06
Works on browser as well
– Monica Acha
Nov 23 '18 at 17:06
1
1
May be your browser doesn't have the 'startsWith' function (IE 11 doesn't).
– Poul Bak
Nov 23 '18 at 17:07
May be your browser doesn't have the 'startsWith' function (IE 11 doesn't).
– Poul Bak
Nov 23 '18 at 17:07
3
3
String is a reserved native constructor for strings,. try and avoid creating a var named this way.– Keith
Nov 23 '18 at 17:13
String is a reserved native constructor for strings,. try and avoid creating a var named this way.– Keith
Nov 23 '18 at 17:13
add a comment |
1 Answer
1
active
oldest
votes
you can use a regular expression to test for "starts with" in any version of javascript.
var value = 'Hello There';
if (/^Hello/.test(value) && value !== 'Hello World') {
console.log('yes it is!')
}
answered Nov 23 '18 at 17:55
BenjaBenja
3,35612024
1
Hello,thank you a lot for your answer
– demostanis
Nov 24 '18 at 15:57
add a comment |
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1 Answer
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active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
you can use a regular expression to test for "starts with" in any version of javascript.
var value = 'Hello There';
if (/^Hello/.test(value) && value !== 'Hello World') {
console.log('yes it is!')
}
answered Nov 23 '18 at 17:55
BenjaBenja
3,35612024
1
Hello,thank you a lot for your answer
– demostanis
Nov 24 '18 at 15:57
add a comment |
you can use a regular expression to test for "starts with" in any version of javascript.
var value = 'Hello There';
if (/^Hello/.test(value) && value !== 'Hello World') {
console.log('yes it is!')
}
answered Nov 23 '18 at 17:55
BenjaBenja
3,35612024
1
Hello,thank you a lot for your answer
– demostanis
Nov 24 '18 at 15:57
add a comment |
you can use a regular expression to test for "starts with" in any version of javascript.
var value = 'Hello There';
if (/^Hello/.test(value) && value !== 'Hello World') {
console.log('yes it is!')
}
answered Nov 23 '18 at 17:55
BenjaBenja
3,35612024
you can use a regular expression to test for "starts with" in any version of javascript.
var value = 'Hello There';
if (/^Hello/.test(value) && value !== 'Hello World') {
console.log('yes it is!')
}
answered Nov 23 '18 at 17:55
BenjaBenja
3,35612024
answered Nov 23 '18 at 17:55
BenjaBenja
3,35612024
answered Nov 23 '18 at 17:55
BenjaBenja
3,35612024
answered Nov 23 '18 at 17:55
BenjaBenja
3,35612024
3,35612024
1
Hello,thank you a lot for your answer
– demostanis
Nov 24 '18 at 15:57
add a comment |
1
Hello,thank you a lot for your answer
– demostanis
Nov 24 '18 at 15:57
1
1
Hello,thank you a lot for your answer
– demostanis
Nov 24 '18 at 15:57
Hello,thank you a lot for your answer
– demostanis
Nov 24 '18 at 15:57
add a comment |
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3
jsfiddle.net/toc02re1 works for me
– apokryfos
Nov 23 '18 at 17:05
Works on browser as well
– Monica Acha
Nov 23 '18 at 17:06
1
May be your browser doesn't have the 'startsWith' function (IE 11 doesn't).
– Poul Bak
Nov 23 '18 at 17:07
3
Stringis a reserved native constructor for strings,. try and avoid creating a var named this way.– Keith
Nov 23 '18 at 17:13